ASP.NET

if ( Session["userid"] == null )
   Response.Redirect("Login.aspx");

aziz_subaie wrote:

can you give me an idea about the base class please

class CAuthentication:System.Web.UI.Page
{
    private void override OnLoad(object sender,EventArgs e)
    {
       base.OnLoad(e);
       //Check your session and redirect here
    }
}

class MyPage:CAuthentication
{
    protected void Page_Load()
    {
        //Do your page load. This will happen only after session authenticated in CAuthentication class
    }
}

TreeView1.Nodes[0].Text="Some text for first node";<br />
TreeView1.Nodes[0].ToolTip="ToolTip for first node";