protected void ButtonSearch_Click(object sender, EventArgs e) { if (TextBoxSearch.Text.Length > 0) { DataTable resultTable = StockApi.symbolSearch(TextBoxSearch.Text, apiKey: Session["ApiKey"].ToString()); if (resultTable != null) { DropDownListStock.DataTextField = "Name"; DropDownListStock.DataValueField = "Symbol"; DropDownListStock.DataSource = resultTable; DropDownListStock.DataBind(); ListItem li = new ListItem("Select Stock", "-1"); DropDownListStock.Items.Insert(0, li); ViewState["GraphScript"] = "Search & Select script"; labelSelectedSymbol.Text = "Search & Select script"; } else { Response.Write("<script language=javascript>alert('" + common.noSymbolFound + "')</script>"); } } else { Response.Write("<script language=javascript>alert('" + common.noTextSearchSymbol + "')</script>"); } }