How to call javascript function from ScriptManager.RegisterStartupScript?

Question

I have the following javascript code:

<script type="text/javascript" language="javascript">
        $(document).ready(
            function () {
                // THIS IS FOR HIDE ALL DETAILS ROW
                $(".SUBDIV table tr:not(:first-child)").not("tr tr").hide();
                $(".SUBDIV .btncolexp").click(function () {
                    $(this).closest('tr').next('tr').toggle();
                    //this is for change img of btncolexp button
                    if ($(this).attr('class').toString() == "btncolexp collapse") {
                        $(this).addClass('expand');
                        $(this).removeClass('collapse');
                    }
                    else {
                        $(this).removeClass('expand');
                        $(this).addClass('collapse');
                    }
                });

                function expand_all() {
                    $(this).closest('tr').next('tr').toggle();
                    };
            });

    </script>

I want to call expand_all function via code-behind .

I know I can use something like this, but it does not work and I don't understand used parameters:

ScriptManager.RegisterStartupScript(Me, GetType(String), "Error", "expand_all();", True)

Can you help me?

As for the parameters used, they hide that stuff in the documentation ;) — Jamiec
– Jamiec, Commented Feb 2, 2015 at 10:20

Ivan Sivak · Accepted Answer · 2015-02-02 10:16:59Z

1

Because you have your expand_all function defined within anonymous $.ready event context. Put your code outside and it should work.

function expand_all(){
    alert('test B');
}
$(document).ready(
    function () {
        // this won't work
        function expand_all() {
            alert('test A');
        };
    });


// will show test B
expand_all();

check this:

http://jsfiddle.net/jrrymg0g/

answered Feb 2, 2015 at 10:16

Ivan Sivak

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Jamiec · Accepted Answer · 2015-02-02 10:14:56Z

1

Your method expand_all only exists within the scope of the function inside $(document).ready(...), in order for you to call it from ScriptManager.RegisterStartupScript it needs to be at the window level, simply move that function outside the $(document).ready(...)

<script type="text/javascript" language="javascript">
    $(document).ready(
        function () {
           ....                
        });

    function expand_all() {
           $(this).closest('tr').next('tr').toggle();
    };
</script>

answered Feb 2, 2015 at 10:14

Jamiec

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