I have this link button here

```
<asp:LinkButton ID="lnkButton" CssClass="Button" runat="server">Link Text</asp:LinkButton>

```

and I am assign it a PostBackURL in my code behind like so

```
lnkButton.PostBackUrl = "#video";

```

but its not going to an anchor div video, instead I am getting a Page Not Found Error

What Am I doing wrong?