GridView中实现CheckBox的全选 (ajax)

根据一位网友的代码修改了一下
用服务器端的方法：
在页面上放一个gridview控件，配置好数据源，编辑列，添加一个模版列，再编辑模版，放入一个checkbox控件。代码如下：

< body >
     < form  id ="form1"  runat ="server" >
         < asp:ScriptManager  ID ="ScriptManager1"  runat ="server" />
     < div >
         < asp:UpdatePanel  ID ="UpdatePanel1"  runat ="server" >
             < ContentTemplate >
                 < asp:GridView  ID ="GridView1"  runat ="server" >
                     < Columns >
                         < asp:TemplateField >
                             < HeaderTemplate >
                                 < asp:CheckBox  ID ="chkAll"  runat ="server"  OnCheckedChanged ="chkAll_CheckedChanged"  AutoPostBack ="True"   />
                             </ HeaderTemplate >
                             < ItemTemplate >
                                 < asp:CheckBox  ID ="chkItem"  runat ="server"   />
                             </ ItemTemplate >
                         </ asp:TemplateField >
                     </ Columns >
                 </ asp:GridView >
             </ ContentTemplate >
         </ asp:UpdatePanel >     
     </ div >
     </ form >
</ body >

后台cs代码：

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
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            string conStr = "server=192.168.0.118;database=Northwind;Uid=sa;pwd=";
            string sql = "select * from Region";
            SqlConnection con = new SqlConnection(conStr);
            SqlDataAdapter sda = new SqlDataAdapter(sql, con);
            DataSet ds = new DataSet();
            sda.Fill(ds);
            this.GridView1.DataSource = ds;
            this.GridView1.DataBind();
            sda.Dispose();
            con.Close();
        }
    }
    protected void chkAll_CheckedChanged(object sender, EventArgs e)
    {
        for (int i = 0; i < this.GridView1.Rows.Count; i++)
        {
            ((CheckBox)this.GridView1.Rows[i].FindControl("chkItem")).Checked = ((CheckBox)this.GridView1.HeaderRow.FindControl("chkAll")).Checked;
        }
    }
}

本文转载自http://www.cnblogs.com/oec2003/archive/2007/11/09/954798.html，稍作修改~
 

转载于:https://www.cnblogs.com/yuhui/archive/2008/06/12/1218216.html