protected void ddlProject_SelectedIndexChanged(object sender, EventArgs e) { try { var row = aStoreBll.GetStoreByProjectID(ddlProject.SelectedItem.Text); if (row.Count > 0) { ddlStoreName.DataSource = row.ToList(); ddlStoreName.DataTextField = "StoreName"; ddlStoreName.DataValueField = "Store_Id"; ddlStoreName.DataBind(); ddlStoreName.Items.Insert(0, new ListItem("---Select One---", "0")); } } catch (Exception ex) { ScriptManager.RegisterStartupScript(this.Page, Page.GetType(), "text", "func('" + ex.Message + "')", true); } }