New to Telerik UI for ASP.NET AJAX? Download free 30-day trial


The ItemSelected event occurs when the user selects an item from the RadMultiSelect dropdown.

The ItemDeselected event does not fire unless the AutoPostBack property is set to True or a PostBack on the page occurs.

The ItemSelected event handler receives two arguments:

  1. The RadMultiSelect instance that is loading items. This argument is of type object, but can be cast to the RadMultiSelect type.

  2. An EventArgs object. This object has an Item property, which provides access to the item that was just selected. This item, in turn, has a DataItem property, which lets you access the item in the data source to which the RadMultiSelect is being bound.

Use the ItemSelected event handler to respond in server-side code when the user selects a new item:

<telerik:RadMultiSelect ID="RadMultiSelect1" runat="server" DataTextField="text" DataValueField="value" Filter="Contains" AutoPostBack="true" OnItemSelected="RadMultiSelect1_ItemSelected">
        <telerik:MultiSelectItem Text="Steven White" Value="1"></telerik:MultiSelectItem>
        <telerik:MultiSelectItem Text="Nancy King" Value="2"></telerik:MultiSelectItem>
        <telerik:MultiSelectItem Text="Nancy Davolio" Value="3"></telerik:MultiSelectItem>
        <telerik:MultiSelectItem Text="Robert Davolio" Value="4"></telerik:MultiSelectItem>
        <telerik:MultiSelectItem Text="Michael Leverling" Value="5"></telerik:MultiSelectItem>
<br />
<telerik:RadLabel ID="Label1" runat="server"></telerik:RadLabel>
protected void RadMultiSelect1_ItemSelected(object sender, Telerik.Web.UI.RadMultiSelectItemEventArgs e)
    Label1.Text = "You selected item with text: " + e.Item.Text;
Protected Sub RadMultiSelect1_ItemSelected(ByVal sender As Object, ByVal e As Telerik.Web.UI.RadMultiSelectItemEventArgs)
    Label1.Text = "You selected item with text: " & e.Item.Text
End Sub
In this article