I want to be able to do a automatic postback and call the server function "protected void zoom(object sender, EventArgs e)" each time the slider value changes.
So what I did was:
<asp:TextBox type="text" id="demo_from" runat="server"
But the problem is, it WILL not fire the server-side event unless I manually click the textbox and press "ENTER". Then the event will fire (during debug).
So how can I get the event to auto-fire each time the slider value changes?
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