给 GridView 的 LinkButton 删除按钮添加弹出层的确认删除对话框

<%@ Page Language="C#" EnableViewState="true" %>     if (!Page.IsPostBack)     {       // 创建示例数据绑定源       System.Data.DataTable dt = new System.Data.DataTable();       System.Data.DataRow dr;       dt.Columns.Add(new System.Data.DataColumn("UserId", typeof(System.Int32)));       dt.Columns.Add(new System.Data.DataColumn("Name", typeof(System.String)));       System.Random rd = new System.Random();       for (int i = 1; i < 10; i++)       {         dr = dt.NewRow();         dr[0] = i;         dr[1] = "【孟子E章】" + i.ToString();         dt.Rows.Add(dr);       }       System.Data.DataView dv = new System.Data.DataView(dt);       GridView1.DataSource = dv;       GridView1.DataBind();     }   }   protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)   {     if (e.Row.RowType == DataControlRowType.DataRow)     {       LinkButton x = e.Row.FindControl("x") as LinkButton;       x.Attributes.Add("onclick", "return ShowDiv('" + x.UniqueID + "')");     }   }   protected void x_Click(object sender, EventArgs e)   {     LinkButton x = sender as LinkButton;     Response.Write("你要删除的 UserId = " + x.CommandArgument);   }       linkbutton = o;       document.getElementById("d").style.display = "";       return false;     }     function Yes() {       if (linkbutton) {         __doPostBack(linkbutton, '');       }     }     function No() {       linkbutton = null;       document.getElementById("d").style.display = "none";     }