Question

<script language="javascript" type="text/javascript">
    function pageLoad() {

            ShowPopup();

     }
</script>

The above code will call ShowPopup on pageLoad() .
I need that ShowPopup method to work only first time

ie;

need to check IsPostback Property of the Page.

Can i do this from client side(JavaScript) .?

Answer 1

Sure, you can inject server-side property values into your markup by using script tags:

C#:

if (<%=(!Page.IsPostBack).ToString() %>) ShowPopup();

VB.NET

if(<%=(Not Page.isPostBack).ToString().ToLower() %>) ShowPopup();