public void Load_ApprovalType() { BLL_Infra_Approval_Type objBLLAppType = new BLL_Infra_Approval_Type(); DataTable dt = objBLLAppType.Get_Approval_Type(null); ddlType.DataSource = dt; ddlType.DataTextField = "TYPE_VALUE"; ddlType.DataValueField = "TYPE_KEY"; ddlType.DataBind(); ddlType.Items.Insert(0, new ListItem("-Select-", "0")); }