protected void Page_Load(object sender, EventArgs e) { if (Session["id"] == null) { Response.Redirect("AdminPanel.aspx"); } else { For_Admin AdCat = new For_Admin(); txtadminID.Text = Session["id"].ToString(); if (!IsPostBack) { ddlCategory.DataSource = AdCat.bindDDL(); //ddlCategory.DataValueField = "Id"; ddlCategory.DataTextField = "Name"; ddlCategory.DataValueField = "Id"; ddlCategory.DataBind(); ddlCategory.Items.Insert(0, "-Select-"); } grid_SubCategory.DataSource = AdCat.Get_Subcategory(); grid_SubCategory.DataBind(); grid_Category.DataSource = AdCat.Get_category(); grid_Category.DataBind(); } }