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ComboBox / WCF Web Service


    1. Open the combobox to get the first 10 items.
    2. Click the button in the dropdown to load the next 10 items.
    3. Type in some text to filter.

Source Code

C# VB.NET
Show code in new window Demo isolation steps
  • <%@ Page Language="VB" %>

    <%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
    <%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
    <%@ Register TagPrefix="qsf" TagName="Header" Src="~/Common/Header.ascx" %>
    <%@ Register TagPrefix="qsf" TagName="HeadTag" Src="~/Common/HeadTag.ascx" %>
    <%@ Register TagPrefix="qsf" TagName="Footer" Src="~/Common/Footer.ascx" %>
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head id="Head1" runat="server">
        <qsf:HeadTag ID="Headtag1" runat="server"></qsf:HeadTag>
    </head>
    <body class="BODY">
        <form id="form1" runat="server">
        <div>
            <telerik:RadScriptManager ID="RadScriptManager1" runat="server">
            </telerik:RadScriptManager>
            <qsf:Header ID="Header1" runat="server" NavigationLanguage="VB"></qsf:Header>
            <telerik:RadComboBox runat="server" ID="RadComboBox1" Height="100px"
                EnableLoadOnDemand="true" ShowMoreResultsBox="true" EnableVirtualScrolling="true" EmptyMessage="Type here ...">
                <WebServiceSettings Path="ComboBoxWcfService.svc" Method="LoadData" />
            </telerik:RadComboBox>
            <qsf:Footer ID="Footer1" runat="server"></qsf:Footer>
        </div>
        </form>
    </body>
    </html>

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