[JavaScript]How to "auto" copy content of textbox to clipboard

[mattmao]

I am doing a ASP.NET porject, inside a asp control tag there are some textboxes for users to input data.

Later they can take previously entered data out of those textboxes.

To provide better UI efficiency, I would like to use JavaScripts to support "auto" copy to clipboard, but I don't know how to achieve that?

Here is my code stub:

<script type="text/javascript">
    var input = document.getElementById("<%=txtUser.ClientID%>").text;
    function autocopy(input)
    {
        //it should pass input to windows clipboard, or any program
        // that can support the "ctrl+V" feature...
    }
</script>

I am quite a noob at javascript, so I really have no idea how to continue.

Thanks in advance!

[acoder]

In IE, you can use something like:

window.clipboardData.setData("text",...);

In Firefox, you will need to sign the script or allow it to run - see link. I'm not sure about other browsers.