In the following code when I click on my `Clear_Button` my `OnClick` event refreshes my page and I don't want that to happen. How can I prevent this from happening?

```
<dx:ASPxButton ID="Clear_Button" runat="server" AutoPostBack="false" CssClass="bordered-orange roundCorners toRight toMiddle" Text="Clear" Width="18%" Theme="Metropolis">
</dx:ASPxButton>

```

My Event :

```
Protected Sub Clear_Button_Click(sender As Object, e As EventArgs)

    Author.Items.Clear()

End Sub

```

Thank you in advance for your answers