GridView内按钮Click获取记录主键值

在GridView控件中，每行记录内会放置一个铵钮，当用户点击这个铵钮时，获取当笔记录的主键值。可看演示(是一个gif动画，重新播放尝试刷新网页):


实现这个功能，你需要为GridView控件设置DataKeyNames属性和OnRowCreated事件。

View Code

  < asp:GridView  ID ="GridView1"  runat ="server"  AutoGenerateColumns ="false"  DataKeyNames ="MediaTypeId"
                    OnRowCreated ="GridView1_RowCreated" >
                     < Columns >
                         <!--
                            其它 TemplateField
                         -->
                         < asp:TemplateField  HeaderText ="Select" >
                             < ItemTemplate >
                                 < asp:Button  ID ="Button1"  runat ="server"  Text ="选择"   />
                             </ ItemTemplate >
                         </ asp:TemplateField >
                     </ Columns >
                 </ asp:GridView >

 

.aspx.cs代码：

View Code

  protected   void  GridView1_RowCreated( object  sender, GridViewRowEventArgs e)
    {
        if  (e.Row.RowType  !=  DataControlRowType.DataRow)  return ;

         if  (e.Row.FindControl ( " Button1 " )  !=   null )
        {
            Button CtlButton  =  (Button)e.Row.FindControl ( " Button1 " );
            CtlButton.Click  += new  EventHandler(CtlButton_Click);
        }
    }

     private   void  CtlButton_Click( object  sender, EventArgs e)
    {
        Button button  =  (Button)sender;
        GridViewRow gvr  =  (GridViewRow)button.Parent.Parent;
         string  pk  =  GridView1.DataKeys[gvr.RowIndex].Value.ToString();

         // do something

         // InsusJsUtility objJs = new InsusJsUtility();   // http://www.cnblogs.com/insus/articles/1341703.html
         // objJs.JsAlert(pk);
    }