have "file1.aspx" that contain 2 frames:
left which is "left.aspx" and right which is "right.aspx"
In "left.aspx" I have this button:

<asp:Button id="Button1" runat="server" Text="Contact" BorderStyle="None">
</asp:Button>

In "left.aspx.vb" I have this code:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Response.Redirect("ContactUs.aspx")
End Sub

But I want that "ContactUs.aspx" will be open in the right frame (The right frame will be the target)

How to do it???

You can't do thar directly with ASP.NET. ASPX pages up to version 1.1 will always post back to themselves.

There are a few work arounds:

1. In the click handler for the button, send out some JavaScript that reloads the left frame. All you need to do is send a <script> block that sets the location.href for the other frame.

2. Don't use an ASP.NET button. If all you need to do is reload a page in the other frame, a simple <input type="button" /> will do.

Cheers,

Imar
---------------------------------------
Imar Spaanjaars
Everyone is unique, except for me.
While typing this post, I was listening to: Lateralus by Tool (Track 9 from the album: Lateralus) What's This?

You can write this in the click event:

Response.Write("<script language=javascript>top.NAME_OF_FRAME.location='ht tp://servername/vdirname/ContactUs.aspx';</script>")

:)Cheers
Spacy