Question

 string locationName = "Mumbai";
    Page.ClientScript.RegisterStartupScript(Type.GetType
    ("System.String"), "addScript", "PassValues(" + locationName + ")", true);

in javascript my code contains

<script language="javascript" type="text/javascript">
        function PassValues(locationName)
            {
             var txtValue = locationName; 
             alert(txtValue);
            }
</script>

Here the alert shows undefined instead of “Mumbai”

Answer 1

Try putting single quotes around your variable in the code behind. Without them, the browser thinks you are passing in a variable named Mumbai. What you really want to pass is the string ‘Mumbai’. You get the message, ‘undefined’, because there is no variable named Mumbai in the client side code.

 string locationName = "Mumbai";
    Page.ClientScript.RegisterStartupScript(Type.GetType
    ("System.String"), "addScript", "PassValues('" + locationName + "')", true);