protected void Page_Load(object sender, EventArgs e) { ErrorMessageLabel.Visible = false; if (!IsPostBack) { // Populate data into dropdown lists. try { CommonService.CommonService commonService = serviceLoader.GetCommon(); // Agents. AgentDropDownList.DataSource = commonService.GetAgentsList(); AgentDropDownList.DataValueField = "UserId"; AgentDropDownList.DataTextField = "UserName"; AgentDropDownList.DataBind(); AgentDropDownList.Items.Insert(0, new ListItem("<All Agents>", "0")); } catch (Exception ex) { ErrorMessageLabel.Text = "Unable to process the request. Please contact your administrator."; ErrorMessageLabel.Visible = true; log.Error("Unknown Error", ex); } } }