# SelectedIndexChanged Event

Fired when a different item is selected in a data listing control between posts to the server.

### Event Parameters

* `(object)` **sender**

  * The control that fires the event

* `(EventArgs)` **e**

  * Does not contain arguments

### Attaching the event

In the Markup

```ASP.NET
<telerik:RadGrid ID="RadGrid1" runat="server" OnSelectedIndexChanged="RadGrid1_SelectedIndexChanged">
   <ClientSettings>
       <Selecting AllowRowSelect="true" />
   </ClientSettings>
</telerik:RadGrid>
```

In the Code behind

```C#
protected void Page_Init(object sender, EventArgs e)
{
    RadGrid1.SelectedIndexChanged += RadGrid1_SelectedIndexChanged;
}
```

```VB
Protected Sub Page_Init(sender As Object, e As EventArgs) Handles Me.Init
    AddHandler RadGrid1.SelectedIndexChanged, AddressOf RadGrid1_SelectedIndexChanged
End Sub
```

The event handler

```C#
protected void RadGrid1_SelectedIndexChanged(object sender, EventArgs e)
{
    GridItem item = RadGrid1.SelectedItems[0];
}
```

```VB
Protected Sub RadGrid1_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs)
    Dim item As GridItem = RadGrid1.SelectedItems(0)
End Sub
```

## See Also

* [Telerik RadGrid Event Sequence](https://www.telerik.com/products/aspnet-ajax/documentation/controls/grid/control-lifecycle/event-sequence)