# ButtonClick

The server-side **ButtonClick** event occurs when the user clicks on a button, causing a postback.

The event handler function receives two arguments:

1. The **RadRibbonBar** which has fired the event. This argument is of type object, but can be cast to the **RadRibbonBar type**.

2. An EventArgs object with the following properties:

   * **Button** - the clicked button.

   * **Group** - the parent group of the clicked button.

   * **Index** - the index of the clicked button in its containing group.

```ASPNET
<telerik:RadRibbonBar RenderMode="Lightweight" ID="RadRibbonBar1" runat="server" OnButtonClick="RadRibbonBar1_ButtonClick">
    <telerik:RibbonBarTab Text="Home">
        <telerik:RibbonBarGroup Text="Clipboard" EnableLauncher="true">
            <Items>
                <telerik:RibbonBarButton Size="Medium" Text="Cut" ImageUrl="icons/Cut.png" />
                <telerik:RibbonBarButton Size="Medium" Text="Copy" ImageUrl="icons/Copy.png" />
            </Items>
        </telerik:RibbonBarGroup>
    </telerik:RibbonBarTab>
</telerik:RadRibbonBar>
<asp:Literal runat="server" ID="Literal1"></asp:Literal>
```

```C#
	
protected void RadRibbonBar1_ButtonClick(object sender, RibbonBarButtonClickEventArgs e)
{
    Literal1.Text += "Text: " + e.Button.Text + "<br/>";
}
	
```

```VB.NET
		
Protected Sub RadRibbonBar1_ButtonClick(sender As Object, e As RibbonBarButtonClickEventArgs)
    Literal1.Text += "Text: " + e.Button.Text + "<br/>"
End Sub	
	
```

## See Also

* [Online Demo](https://demos.telerik.com/aspnet-ajax/ribbonbar/examples/events/serverside/defaultcs.aspx)

* [Server-side Events Overview](https://www.telerik.com/products/aspnet-ajax/documentation/controls/ribbonbar/server-side-programming/events/overview)