thanks, it's better, now i see the loading icon, but it's only shows the first time i press the button, at the following clicks , i see no loading icon,
here is the code behind:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
namespace test
{
public partial class testloadingpage : System.Web.UI.Page
{
static string mConnectionString = ConfigurationManager.ConnectionStrings["test"].ToString();
static string select = "";
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
select = "SELECT * FROM test";
RadGridMailingList.DataBind();
}
}
protected void Button1_Click(object sender, EventArgs e)
{
select = "SELECT * from test";
RadGridMailingList.Rebind();
}
public DataTable GetDataTable(string query)
{
SqlConnection conn = new SqlConnection(mConnectionString);
SqlDataAdapter adapter = new SqlDataAdapter();
adapter.SelectCommand = new SqlCommand(query, conn);
DataTable myDataTable = new DataTable();
conn.Open();
try
{
adapter.Fill(myDataTable);
}
finally
{
conn.Close();
}
return myDataTable;
}
protected void RadGrid1_NeedDataSource(object source, Telerik.Web.UI.GridNeedDataSourceEventArgs e)
{
RadGridMailingList.DataSource = GetDataTable(select);
}
}
}