Why not take a look at the Clipboard jQuery plugin [^]

Best regards
Espen Harlinn

Fro what I understand, non-IE browsers are not clipboard friendly via source code. Since it appears as if you're using the clipboard contents within the same web site, why don't you just use a session variable instead?

Using the clipboard in a browser is a tricky business. Some browsers will not let you have direct access for security reasons, so you need to do some JavaScript hackery. I have had to dive into this in the past and how I managed to make it work is, when the user tries to paste, put the focus to an invisible* textarea, and then read the text out of it. Similarly, to copy you can select a range within the document and then queue a Ctrl+C on the document object.

(*: Invisible to the user, but it must be rendered, otherwise it won't receive the text. That means you can't use display:none or zero size. A good approach is to put it in a div which then gets hidden under some other control on your page.)

It is further complicated because IE does pasting in one way and the other browsers another.

Before you ask, no you can't have the code for it: I don't have it with me here, and it is copyright to the client for whom I wrote it. I hope this is enough information to get you started with finding how to do it yourself.

Using a session variable as suggested by John is

private void btnCopy_Click(object sender, EventArgs e)
{
  Session["MY_KEY"] = txtClipboard.Text;
}

private void btnPaste_Click(object sender, EventArgs e)
{
  txtResult.Text = Session["MY_KEY"] as string;
}

Your solution above would copy the text into the servers clipboard which isn't a good thing