How to assign JS screen.width to ASP.Net variable

Posted on 16th Feb 2014 07:03 pm by admin

I've got this ASP.net routine that gets the cookie value of the screen width, but now I need to change it so that it gets the width using Javascript, in case the users don't have cookies enabled. I need something like: Dim myWidth As String = ScriptManager.RegisterStartupScript(Me.Page, Me.Page.GetType, "screenwidth", "screen.width;", True) However, I get a blue line under this and it tells me that it doesn't produce a value How can I do this?

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