Asp.net中GridView使用详解(很全,很经典)
Asp.net中GridView使用详解(很全,很经典)
Reya滴水心 发表于3年前
Asp.net中GridView使用详解(很全,很经典)
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Asp.netGridView使用详解

效果图参考:http://hi.baidu.com/hello%5Fworld%5Fws/album/asp%2Enet中以gv开头的图片

l         GridView无代码分页排序

l         GridView选中,编辑,取消,删除

l         GridView正反双向排序

l         GridView和下拉菜单DropDownList结合

l         GridViewCheckBox结合

l         鼠标移到GridView某一行时改变该行的背景色方法一

l         鼠标移到GridView某一行时改变该行的背景色方法二

l         GridView实现删除时弹出确认对话框

l         GridView实现自动编号

l         GridView实现自定义时间货币等字符串格式

l         GridView实现用“...”代替超长字符串

l         GridView一般换行与强制换行

l         GridView显示隐藏某一列

l         GridView弹出新页面/弹出新窗口

l         GridView固定表头(不用javascript只用CSS2行代码,很好用)

l         GridView合并表头多重表头无错完美版(以合并33行举例)

l         GridView突出显示某一单元格(例如金额低于多少,分数不及格等)

l         GridView加入自动求和求平均值小计

l         GridView数据导入Excel/Excel数据读入GridView

1.GridView简单代码分页排序:

1.AllowSorting设为Trueaspx代码中是AllowSorting="True"

2.默认110条,如果要修改每页条数,修改PageSize即可,在aspx代码中是PageSize="12"

3.默认的是单向排序的,右击GridView弹出属性,选择AllowSortingTrue即可。

4.添加代码:

    protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)

    {

        GridView1.PageIndex = e.NewPageIndex;

        Bind();

    }

2.GridView选中,编辑,取消,删除:

后台代码:

using System;

using System.Data;

using System.Configuration;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page

{

    SqlConnection sqlcon;

    SqlCommand sqlcom;

    string strCon = "Data Source=(local);Database=数据库名;Uid=帐号;Pwd=密码";

    protected void Page_Load(object sender, EventArgs e)

    {

        if (!IsPostBack)

        {

            bind();

        }

    }

    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

    {

        GridView1.EditIndex = e.NewEditIndex;

        bind();

    }

//删除

    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)

    {

        string sqlstr = "delete from 表 where id='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";

        sqlcon = new SqlConnection(strCon);

        sqlcom = new SqlCommand(sqlstr,sqlcon);

        sqlcon.Open();

        sqlcom.ExecuteNonQuery();

        sqlcon.Close();

        bind();

    }

//更新

    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)

    {

        sqlcon = new SqlConnection(strCon);

        string sqlstr = "update 表 set 字段1='"

            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',字段2='"

            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text.ToString().Trim() + "',字段3='"

            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where id='"

            + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";

        sqlcom=new SqlCommand(sqlstr,sqlcon);

        sqlcon.Open();

        sqlcom.ExecuteNonQuery();

        sqlcon.Close();

        GridView1.EditIndex = -1;

        bind();

    }

//取消

    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

    {

        GridView1.EditIndex = -1;

        bind();

    }

//绑定

    public void bind()

    {

        string sqlstr = "select * from 表";

        sqlcon = new SqlConnection(strCon);

        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

        DataSet myds = new DataSet();

        sqlcon.Open();

        myda.Fill(myds, "表");

        GridView1.DataSource = myds;

        GridView1.DataKeyNames = new string[] { "id" };//主键

        GridView1.DataBind();

        sqlcon.Close();

    }

}

 

前台主要代码:

                            ... ...

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"

                        ForeColor="#333333" GridLines="None" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"

                        OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit">

                        <FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />

                        <Columns>

                            <asp:BoundField DataField="身份证号码" HeaderText="用户ID" ReadOnly="True" />

                            <asp:BoundField DataField="姓名" HeaderText="用户姓名" />

                            <asp:BoundField DataField="员工性别" HeaderText="性别" />

                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />

                            <asp:CommandField HeaderText="选择" ShowSelectButton="True" />

                            <asp:CommandField HeaderText="编辑" ShowEditButton="True" />

                            <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />

                        </Columns>

                        <RowStyle ForeColor="#000066" />

                        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

                        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

                        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

                    </asp:GridView>

3.GridView正反双向排序:

后台代码:

using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Data.SqlClient;

public partial class Default3 : System.Web.UI.Page

{    SqlConnection sqlcon;

    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=";

    protected void Page_Load(object sender, EventArgs e)

    {

        if (!IsPostBack)

        {

            ViewState["SortOrder"] = "身份证号码";

            ViewState["OrderDire"] = "ASC";

            bind();

        }

    }

    protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)

    {

        string sPage = e.SortExpression;

        if (ViewState["SortOrder"].ToString() == sPage)

        {

            if (ViewState["OrderDire"].ToString() == "Desc")

                ViewState["OrderDire"] = "ASC";

            else

                ViewState["OrderDire"] = "Desc";

        }

        else

        {

            ViewState["SortOrder"] = e.SortExpression;

        }

        bind();

    }

    public void bind()

    {

       

        string sqlstr = "select top 5 * from 飞狐工作室";

        sqlcon = new SqlConnection(strCon);

        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

        DataSet myds = new DataSet();

        sqlcon.Open();

        myda.Fill(myds, "飞狐工作室");

        DataView view = myds.Tables["飞狐工作室"].DefaultView;

        string sort = (string)ViewState["SortOrder"] + " " + (string)ViewState["OrderDire"];

        view.Sort = sort;

        GridView1.DataSource = view;

        GridView1.DataBind();

        sqlcon.Close();

    }

}

前台主要代码:

<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"

                        CellPadding="3" Font-Size="12px" OnSorting="GridView1_Sorting" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">

                        <FooterStyle BackColor="White" ForeColor="#000066" />

                        <Columns>

                             <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />

                            <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>

                            <asp:BoundField DataField="员工性别" HeaderText="性别" SortExpression="员工性别"/>

                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>                               

                        </Columns>

                        <RowStyle ForeColor="#000066" />

                        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

                        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

                        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

                    </asp:GridView> 

 

4.GridView和下拉菜单DropDownList结合:

后台代码:

using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Data.SqlClient;

public partial class Default4 : System.Web.UI.Page

{

    SqlConnection sqlcon;

    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

    protected void Page_Load(object sender, EventArgs e)

    {

        DropDownList ddl;

        if (!IsPostBack)

        {

            string sqlstr = "select top 5 * from 飞狐工作室";

            sqlcon = new SqlConnection(strCon);

            SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

            DataSet myds = new DataSet();

            sqlcon.Open();

            myda.Fill(myds, "飞狐工作室");

            GridView1.DataSource = myds;

            GridView1.DataBind();

            for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

            {

                DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];

                if (Convert.ToString(mydrv["员工性别"]).Trim() == "True")

                {

                    ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1");

                    ddl.SelectedIndex = 0;

                }

                if (Convert.ToString(mydrv["员工性别"]).Trim() == "False")

                {

                    ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1");

                    ddl.SelectedIndex = 1;

                }

            }

            sqlcon.Close();

        }

    }

    public SqlDataReader ddlbind()

    {

        string sqlstr = "select distinct 员工性别 from 飞狐工作室";

        sqlcon = new SqlConnection(strCon);

        SqlCommand sqlcom = new SqlCommand(sqlstr, sqlcon);

        sqlcon.Open();

        return sqlcom.ExecuteReader();

    }

前台主要代码:

<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"

                        CellPadding="3" Font-Size="12px"  BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">

                        <FooterStyle BackColor="White" ForeColor="#000066" />

                        <Columns>

                             <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />

                            <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>

                            <asp:TemplateField HeaderText="员工性别">

                                <ItemTemplate>

                                    <asp:DropDownList ID="DropDownList1" runat="server" DataSource='<%# ddlbind()%>' DataValueField="员工性别" DataTextField="员工性别">

                                    </asp:DropDownList>

                                </ItemTemplate>

                            </asp:TemplateField>

                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>

                               

                        </Columns>

                        <RowStyle ForeColor="#000066" />

                        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

                        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

                        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

                    </asp:GridView>

5.GridViewCheckBox结合:

后台代码:

using System;

using System.Data;

using System.Configuration;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Data.SqlClient;

public partial class Default5 : System.Web.UI.Page

{

    SqlConnection sqlcon;

    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

    protected void Page_Load(object sender, EventArgs e)

    {

        if (!IsPostBack)

        {

            bind();

        }

    }

    protected void CheckBox2_CheckedChanged(object sender, EventArgs e)

    {

        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

        {

            CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");

            if (CheckBox2.Checked == true)

            {

                cbox.Checked = true;

            }

            else

            {

                cbox.Checked = false;

            }

        }

    }

    protected void Button2_Click(object sender, EventArgs e)

    {

        sqlcon = new SqlConnection(strCon);

        SqlCommand sqlcom;

        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

        {

            CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");

            if (cbox.Checked == true)

            {

                string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys[i].Value + "'";

                sqlcom = new SqlCommand(sqlstr, sqlcon);

                sqlcon.Open();

                sqlcom.ExecuteNonQuery();

                sqlcon.Close();

            }

        }

        bind();

    }

    protected void Button1_Click(object sender, EventArgs e)

    {

        CheckBox2.Checked = false;

        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

        {

            CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");

            cbox.Checked = false;

        }

    }

    public void bind()

    {

        string sqlstr = "select top 5 * from 飞狐工作室";

        sqlcon = new SqlConnection(strCon);

        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

        DataSet myds = new DataSet();

        sqlcon.Open();

        myda.Fill(myds, "tb_Member");

        GridView1.DataSource = myds;

        GridView1.DataKeyNames = new string[] { "身份证号码" };

        GridView1.DataBind();

        sqlcon.Close();

    }

}

前台主要代码:

<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"

                        CellPadding="3" Font-Size="12px"  BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">

                        <FooterStyle BackColor="White" ForeColor="#000066" />

                        <Columns>

                             <asp:TemplateField>

                                <ItemTemplate>

                                    <asp:CheckBox ID="CheckBox1" runat="server" />

                                </ItemTemplate>

                            </asp:TemplateField>

                             <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />

                            <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>

                           

                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>

                               

                        </Columns>

                        <RowStyle ForeColor="#000066" />

                        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

                        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

                        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

                    </asp:GridView>

                     <asp:CheckBox ID="CheckBox2" runat="server" AutoPostBack="True" Font-Size="12px" OnCheckedChanged="CheckBox2_CheckedChanged"

                        Text="全选" />

                    <asp:Button ID="Button1" runat="server" Font-Size="12px" Text="取消" OnClick="Button1_Click" />

                    <asp:Button ID="Button2" runat="server" Font-Size="12px" Text="删除" OnClick="Button2_Click" />

6.鼠标移到GridView某一行时改变该行的背景色方法一:

做法:

双击GridViewOnRowDataBound事件;

在后台的GridView1_RowDataBound()方法添加代码,最后代码如下所示:

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

    {

    //首先判断是否是数据行

            if (e.Row.RowType == DataControlRowType.DataRow)

            {

                //当鼠标停留时更改背景色

                e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'");

                //当鼠标移开时还原背景色

                e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");

            }

    }

前台代码:

<html xmlns="http://www.w3.org/1999/xhtml" >

<head runat="server">

    <title>实现鼠标划过改变GridView的行背景色清清月儿http://blog.csdn.net/21aspnet </title>

</head>

<body>

    <form id="form1" runat="server">

    <div>

        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="身份证号码"

            DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">

            <Columns>

                <asp:BoundField DataField="身份证号码" HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" />

                <asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名" />

                <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址" />

                <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />

            </Columns>

            <FooterStyle BackColor="White" ForeColor="#000066" />

            <RowStyle ForeColor="#000066" />

            <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

            <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

            <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

        </asp:GridView>

        <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:北风贸易ConnectionString1 %>"

            SelectCommand="SELECT top 5 [身份证号码], [姓名], [员工性别], [家庭住址], [邮政编码] FROM [飞狐工作室]" DataSourceMode="DataReader"></asp:SqlDataSource>

   

    </div>

    </form>

</body>

</html>

 

7.鼠标移到GridView某一行时改变该行的背景色方法二:

做法:和上面的一样就是代码不同

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

    {

        //如果是绑定数据行

        if (e.Row.RowType == DataControlRowType.DataRow)

        {

            //鼠标经过时,行背景色变

            e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'");

            //鼠标移出时,行背景色变

            e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");

        }

    }

8.GridView实现删除时弹出确认对话框:

实现方法:

双击GridViewOnRowDataBound事件;

在后台的GridView1_RowDataBound()方法添加代码,最后代码如下所示:

    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

    {

        //如果是绑定数据行

        if (e.Row.RowType == DataControlRowType.DataRow)

        {

             if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)

            {

                ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除:/"" + e.Row.Cells[1].Text + "/"吗?')");

            }

        }

    }

9.GridView实现自动编号:

实现方法:

双击GridViewOnRowDataBound事件;

在后台的GridView1_RowDataBound()方法添加代码,最后代码如下所示:

    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

    {

        if (e.Row.RowIndex != -1)

        {

            int id = e.Row.RowIndex + 1;

            e.Row.Cells[0].Text = id.ToString();

        }

    }

 

注意这时最好把前台的第一列的表头该为编号,因为以前的第一列被吃掉了。

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"

                        OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">

                        <FooterStyle BackColor="White" ForeColor="#000066" />

                        <Columns>

                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

                            <asp:BoundField DataField="姓名" HeaderText="用户姓名" />

                            <asp:BoundField DataField="员工性别" HeaderText="性别" />

                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />

                            <asp:CommandField HeaderText="选择" ShowSelectButton="True" />

                            <asp:CommandField HeaderText="编辑" ShowEditButton="True" />

                            <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />

                        </Columns>

                        <RowStyle ForeColor="#000066" />

                        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

                        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

                        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

                    </asp:GridView>

10.GridView实现自定义时间货币等字符串格式:

解决方法:

asp.net 2.0中,如果要在绑定列中显示比如日期格式等,如果用下面的方法是显示不了的

<asp :BoundField DataField="CreationDate"

DataFormatString="{0:M-dd-yyyy}"

HeaderText="CreationDate" />

主要是由于htmlencode属性默认设置为true,已防止XSS攻击,安全起见而用的,所以,可以有以下两种方法解决

1

<asp :GridView ID="GridView1" runat="server">

<columns>

<asp :BoundField DataField="CreationDate"

DataFormatString="{0:M-dd-yyyy}"

HtmlEncode="false"

HeaderText="CreationDate" />

</columns>

</asp>

htmlencode设置为false即可

另外的解决方法为,使用模版列

<asp :GridView ID="GridView3" runat="server" >

<columns>

<asp :TemplateField HeaderText="CreationDate" >

<edititemtemplate>

<asp :Label ID="Label1" runat="server"

Text='<%# Eval("CreationDate", "{0:M-dd-yyyy}") %>'>

</asp>

</edititemtemplate>

<itemtemplate>

<asp :Label ID="Label1" runat="server"

Text=<%# Bind("CreationDate", "{0:M-dd-yyyy}") %>'>

</asp>

</itemtemplate>

</asp>

</columns>

</asp>

前台代码:

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="身份证号码"

            DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">

            <Columns>

                <asp:BoundField DataField="身份证号码" HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" />

                <asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名" />

                <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />

                <asp:BoundField DataField="出生日期" HeaderText="出生日期" SortExpression="出生日期" />

                <asp:BoundField DataField="起薪" HeaderText="起薪" SortExpression="起薪" />

            </Columns>

            <FooterStyle BackColor="White" ForeColor="#000066" />

            <RowStyle ForeColor="#000066" />

            <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

            <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

            <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

        </asp:GridView>

        <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:北风贸易ConnectionString1 %>"

            SelectCommand="SELECT top 5 [出生日期], [起薪], [身份证号码], [姓名], [家庭住址], [邮政编码] FROM [飞狐工作室]" DataSourceMode="DataReader"></asp:SqlDataSource>

附录-常用格式化公式:

{0:C}  货币;

{0:D4}0填充的4个字符宽的字段中显示整数;

{0:000.0}四舍五入小数点保留第几位有效数字;

{0:N2}小数点保留2位有效数字;{0:N2}%   小数点保留2位有效数字加百分号;

{0:D}长日期;{0:d}短日期;{0:yy-MM-dd}   例如07-3-25;;{0:yyyy-MM-dd}  例如2007-3-25

11.GridView实现用“...”代替超长字符串:

解决方法:数据绑定后过滤每一行即可

for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

        {

            DataRowView mydrv;

            string gIntro;

            if (GridView1.PageIndex == 0)

            {

                mydrv = myds.Tables["飞狐工作室"].DefaultView[i];//表名

                gIntro = Convert.ToString(mydrv["家庭住址"]);//所要处理的字段

                GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);

            }

            else

            {

                mydrv = myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];

                gIntro = Convert.ToString(mydrv["家庭住址"]);

                GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);

            }

        } 

调用的方法:

    public string SubStr(string sString, int nLeng)

    {

        if (sString.Length <= nLeng)

        {

            return sString;

        }

        string sNewStr = sString.Substring(0, nLeng);

        sNewStr = sNewStr + "...";

        return sNewStr;

    }

12.GridView一般换行与强制换行:

首先设置<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" ItemStyle-Width="100" />gridview里有一列绑定的数据很长,显示的时候在一行里面显示,页面拉得很宽。原因是连续英文段为一个整体导致的,在RowDataBound中添加上了一句e.Row.Cells[2].Style.Add("word-break", "break-all")就可以。如果要给所有的列增加此属性:

 protected void Page_Load(object sender, EventArgs e)

    {

        //正常换行

        GridView1.Attributes.Add("style", "word-break:keep-all;word-wrap:normal");

        //下面这行是自动换行

        GridView1.Attributes.Add("style", "word-break:break-all;word-wrap:break-word");

        if (!IsPostBack)

        {

             bind();//调用数据绑定即可

        }

    }

总之:善用CSSword-break:break-all;word-wrap:break-word属性即可,这个属性是通用的对于顽固的南换行问题都可以解决,不局限于GridView

13.GridView显示隐藏某一列:

解决方案:

public void bind()

    {

        string sqlstr = "select top 5 * from 飞狐工作室";

        sqlcon = new SqlConnection(strCon);

        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

        DataSet myds = new DataSet();

        sqlcon.Open();

        myda.Fill(myds, "飞狐工作室");

        GridView1.DataSource = myds;

        GridView1.DataKeyNames = new string[] { "身份证号码" };

        GridView1.DataBind();

        sqlcon.Close();

        GridView1.Columns[3].Visible = false;//一开始隐藏

        CheckBox1.Checked = false;//如果不这样后面的代码会把他True

    }

双击CheckBox1,在CheckedChanged方法里写上代码,最后代码如下:

protected void CheckBox1_CheckedChanged(object sender, EventArgs e)

    {

         GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;

         Response.Write("GridView1的第4列现在的显示隐藏状态是:"+GridView1.Columns[3].Visible.ToString());

    }

注意:CheckBox1AutoPostBackTrue

14.GridView弹出新页面:

 <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"

                        OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >

                        <FooterStyle BackColor="White" ForeColor="#000066" />

                        <Columns>

                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

                            <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />

                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

                            <asp:HyperLinkField HeaderText="姓名" Text="姓名" DataNavigateUrlFields="姓名" DataNavigateUrlFormatString="Default6.aspx?GoodsID={0}" Target="mainframe" NavigateUrl="~/Default6.aspx" DataTextField="姓名" >

                    </asp:HyperLinkField>

                            <asp:CommandField HeaderText="选择" ShowSelectButton="True" />

                            <asp:CommandField HeaderText="编辑" ShowEditButton="True" />

                            <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />

                        </Columns>

                        <RowStyle ForeColor="#000066" />

                        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

                        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

                        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

                    </asp:GridView>

DataNavigateUrlFields是链接的字段名,DataNavigateUrlFormatString是路径。

15.GridView固定表头(不用javascript只用CSS!,很好用)

代码:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >

<head runat="server">

    <title>GridView固定表头 清清月儿http://blog.csdn.net/21aspnet </title>

        <style>

.Freezing

   {

   

   position:relative ;

   table-layout:fixed;

   top:expression(this.offsetParent.scrollTop);  

   z-index: 10;

   }

.Freezing th{text-overflow:ellipsis;overflow:hidden;white-space: nowrap;padding:2px;}

</style>

</head>

<body style="font-size=12px">

    <form id="form1" runat="server">

    <div style="overflow-y: scroll; height: 200px;width:300px" id="dvBody">

                   <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"

                        OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1_RowCreated"  >

                        <FooterStyle BackColor="White" ForeColor="#000066" />

                        <Columns>

                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

                            <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />

                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

                            <asp:BoundField DataField="姓名" HeaderText="姓名"  />

                           

                        </Columns>

                        <RowStyle ForeColor="#000066" />

                        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

                        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>

                        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" CssClass="Freezing"/>

                    </asp:GridView>

        </div>

    </form>

</body>

</html>

用法:CSS设如上的样式,HeaderStyleCssClass="Freezing,套住GridViewDiv设置高度宽度 <div style="overflow-y: scroll; height: 200px;width:200px" >

16.GridView合并表头多重表头无错完美版(以合并33行举例)

后台代码:

    protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)

    {

        switch (e.Row.RowType)

        {

            case DataControlRowType.Header:

                //第一行表头

                TableCellCollection tcHeader = e.Row.Cells;

                tcHeader.Clear();

                tcHeader.Add(new TableHeaderCell());

                tcHeader[0].Attributes.Add("rowspan", "3"); //跨Row

                tcHeader[0].Attributes.Add("bgcolor", "white");

                tcHeader[0].Text = "";

                tcHeader.Add(new TableHeaderCell());

                //tcHeader[1].Attributes.Add("bgcolor", "Red");

                tcHeader[1].Attributes.Add("colspan", "6"); //跨Column

                tcHeader[1].Text = "全部信息</th></tr><tr>";

                //第二行表头

                tcHeader.Add(new TableHeaderCell());

                tcHeader[2].Attributes.Add("bgcolor", "DarkSeaGreen");

                tcHeader[2].Text = "身份证号码";

                tcHeader.Add(new TableHeaderCell());

                tcHeader[3].Attributes.Add("bgcolor", "LightSteelBlue");

                tcHeader[3].Attributes.Add("colspan", "2");

                tcHeader[3].Text = "基本信息";

                tcHeader.Add(new TableHeaderCell());

                tcHeader[4].Attributes.Add("bgcolor", "DarkSeaGreen");

                tcHeader[4].Text = "福利";

                tcHeader.Add(new TableHeaderCell());

                tcHeader[5].Attributes.Add("bgcolor", "LightSteelBlue");

                tcHeader[5].Attributes.Add("colspan", "2");

                tcHeader[5].Text = "联系方式</th></tr><tr>";

                //第三行表头

                tcHeader.Add(new TableHeaderCell());

                tcHeader[6].Attributes.Add("bgcolor", "Khaki");

                tcHeader[6].Text = "身份证号码";

                tcHeader.Add(new TableHeaderCell());

                tcHeader[7].Attributes.Add("bgcolor", "Khaki");

                tcHeader[7].Text = "姓名";

                tcHeader.Add(new TableHeaderCell());

                tcHeader[8].Attributes.Add("bgcolor", "Khaki");

                tcHeader[8].Text = "出生日期";

                tcHeader.Add(new TableHeaderCell());

                tcHeader[9].Attributes.Add("bgcolor", "Khaki");

                tcHeader[9].Text = "薪水";

                tcHeader.Add(new TableHeaderCell());

                tcHeader[10].Attributes.Add("bgcolor", "Khaki");

                tcHeader[10].Text = "家庭住址";

                tcHeader.Add(new TableHeaderCell());

                tcHeader[11].Attributes.Add("bgcolor", "Khaki");

                tcHeader[11].Text = "邮政编码";

                break;

        }

    }

}

 

前台:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >

<head runat="server">

    <title>GridView合并多重表头表头 清清月儿http://blog.csdn.net/21aspnet </title>

</head>

<body >

    <form id="form1" runat="server">

    <div  >

                   <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1_RowEditing"

                        OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1_RowCreated"  >

                        <FooterStyle BackColor="White" ForeColor="#000066" />

                        <Columns>

                            <asp:CommandField HeaderText="编辑" ShowEditButton="True" />

                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

                            <asp:BoundField DataField="姓名" HeaderText="姓名"  />

                            <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />

                             <asp:BoundField DataField="起薪" HeaderText="起薪"  />

                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

                            <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />

                          

                        </Columns>

                        <RowStyle ForeColor="#000066" />

                        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

                        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>

                        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

                    </asp:GridView>

        </div>

    </form>

</body>

</html>

17.GridView突出显示某一单元格(例如金额低于多少,分数不及格等)

解决方案:主要是绑定后过滤

 GridView1.DataBind();

        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

        {

            DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];

            string score = Convert.ToString(mydrv["起薪"]);

            if (Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等

            {

                GridView1.Rows[i].Cells[4].BackColor = System.Drawing.Color.Red;

            }

        }

        sqlcon.Close();

前台代码:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >

<head id="Head1" runat="server">

    <title>GridView突出显示某一单元格 清清月儿http://blog.csdn.net/21aspnet </title>

</head>

<body >

    <form id="form1" runat="server">

    <div  >

                   <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1_RowEditing"

                        OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >

                        <FooterStyle BackColor="White" ForeColor="#000066" />

                        <Columns>

                            <asp:CommandField HeaderText="编辑" ShowEditButton="True" />

                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

                            <asp:BoundField DataField="姓名" HeaderText="姓名"  />

                            <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />

                             <asp:BoundField DataField="起薪" HeaderText="起薪"  DataFormatString="{0:C}" HtmlEncode="false"/>

                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

                            <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />

                          

                        </Columns>

                        <RowStyle ForeColor="#000066" />

                        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

                        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>

                        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

                    </asp:GridView>

        </div>

    </form>

</body>

</html>

18.GridView加入自动求和求平均值小计

解决方案:    

private double sum = 0;//取指定列的数据和,你要根据具体情况对待可能你要处理的是int

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

    {

       

        if (e.Row.RowIndex >= 0)

        {

            sum += Convert.ToDouble(e.Row.Cells[6].Text);

        }

        else if (e.Row.RowType == DataControlRowType.Footer)

        {

            e.Row.Cells[5].Text = "总薪水为:";

            e.Row.Cells[6].Text = sum.ToString();

            e.Row.Cells[3].Text = "平均薪水为:";

            e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();

           

        }

    }

前台:唯一的花头就是设置ShowFooter="True" ,否则默认表头为隐藏的!

<asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1_RowEditing"

                        OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound" ShowFooter="True"  >

                        <FooterStyle BackColor="White" ForeColor="#000066" />

                        <Columns>

                            <asp:CommandField HeaderText="编辑" ShowEditButton="True" />

                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

                            <asp:BoundField DataField="姓名" HeaderText="姓名"  />

                            <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />

                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

                            <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />

                            <asp:BoundField DataField="起薪" HeaderText="起薪"  />

                          

                        </Columns>

                        <RowStyle ForeColor="#000066" />

                        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

                        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>

                        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

                    </asp:GridView> 

 19.GridView数据导入Excel/Excel数据读入GridView

解决方案:

页面增加一个按钮,单击事件添加如下方法:

protected void Button1_Click(object sender, EventArgs e)

    {

        Export("application/ms-excel", "学生成绩报表.xls");

    }

    private void Export(string FileType, string FileName)

    {

        Response.Charset = "GB2312";

        Response.ContentEncoding = System.Text.Encoding.UTF7;

        Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());

        Response.ContentType = FileType;

        this.EnableViewState = false;

        StringWriter tw = new StringWriter();

        HtmlTextWriter hw = new HtmlTextWriter(tw);

        GridView1.RenderControl(hw);

        Response.Write(tw.ToString());

        Response.End();

    }

//如果没有下面方法会报错类型“GridView”的控件“GridView1”必须放在具有 runat=server 的窗体标记内

    public override void VerifyRenderingInServerForm(Control control)

    {

    }

还有由于是文件操作所以要引入名称空间IOText

后台代码:

using System;

using System.Data;

using System.Configuration;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Data.SqlClient;

using System.Drawing;

using System.IO;

using System.Text;

public partial class Default7 : System.Web.UI.Page

{

    SqlConnection sqlcon;

    SqlCommand sqlcom;

    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

    protected void Page_Load(object sender, EventArgs e)

    {

        if (!IsPostBack)

        {

            bind();

        }

    }

   

    public void bind()

    {

        string sqlstr = "select top 5 * from 飞狐工作室";

        sqlcon = new SqlConnection(strCon);

        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

        DataSet myds = new DataSet();

        sqlcon.Open();

        myda.Fill(myds, "飞狐工作室");

        GridView1.DataSource = myds;

        GridView1.DataKeyNames = new string[] { "身份证号码" };

        GridView1.DataBind();

        sqlcon.Close();

    }

    protected void Button1_Click(object sender, EventArgs e)

    {

        Export("application/ms-excel", "学生成绩报表.xls");

    }

    private void Export(string FileType, string FileName)

    {

        Response.Charset = "GB2312";

        Response.ContentEncoding = System.Text.Encoding.UTF7;

        Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());

        Response.ContentType = FileType;

        this.EnableViewState = false;

        StringWriter tw = new StringWriter();

        HtmlTextWriter hw = new HtmlTextWriter(tw);

        GridView1.RenderControl(hw);

        Response.Write(tw.ToString());

        Response.End();

    }

    public override void VerifyRenderingInServerForm(Control control)

    {

    }

   

}

前台:

<asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3" 

                         BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"   >

                        <FooterStyle BackColor="White" ForeColor="#000066" />

                        <Columns>

                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

                            <asp:BoundField DataField="姓名" HeaderText="姓名"  />

                            <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />

                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

                            <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />

                            <asp:BoundField DataField="起薪" HeaderText="起薪"  />

                          

                        </Columns>

                        <RowStyle ForeColor="#000066" />

                        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

                        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>

                        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

                    </asp:GridView>

        <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="导出" />

读取Excel数据的代码:这个很简单的

private DataSet CreateDataSource()

    {

        string strCon;

        strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("excel.xls") + "; Extended Properties=Excel 8.0;";

        OleDbConnection olecon = new OleDbConnection(strCon);

        OleDbDataAdapter myda = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", strCon);

        DataSet myds = new DataSet();

        myda.Fill(myds);

        return myds;

    }

    protected void Button1_Click(object sender, EventArgs e)

    {

        GridView1.DataSource = CreateDataSource();

        GridView1.DataBind();

    }

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