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Grouping

Search for Customer names

The demo shows how to apply grouping to the RadMultiSelect data source via the GroupExpression in the WebServiceClientDataSource settings.
  • DefaultVB.aspx
<%@ Page Language="vb" AutoEventWireup="true"  %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>

<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <div class="demo-container size-thin" runat="server">
        <h4>Search for Customer names</h4>
        <telerik:RadMultiSelect runat="server" Width="300px" ID="RadMultiSelect1"
            DataTextField="ContactName"
            DataValueField="CustomerID"
            DropDownHeight="400"
            Placeholder="Select customers...">
            <WebServiceClientDataSource >
                <WebServiceSettings ServiceType="OData">
                    <Select Url="https://demos.telerik.com/kendo-ui/service/Northwind.svc/Customers" />
                </WebServiceSettings>
                <GroupExpressions>
                    <telerik:ClientDataSourceGroupExpression FieldName="Country" />
                </GroupExpressions>
            </WebServiceClientDataSource>
        </telerik:RadMultiSelect>
    </div>
    </form>
</body>
</html>

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