Trigger c# Event from JavaScript Function

Question

I'm trying to call c# event from javascript function. I tried this:

<script type="text/javascript">
    function LikeClick() {
        document.getElementById('<%=Helper.ClientID %>').click();
    }
</script>

<asp:Button ID="Helper" runat="server" OnClick="Helper_Click" />

But it doesn't trigger the c# event.

Possible duplicate of I can't click on an ASP:Button if it is hidden using jQuery? — James Thorpe
– James Thorpe, Commented Mar 31, 2017 at 13:44
TL;DR You have to hide the button client side using javascript/css - if you use Visible="False", it's not there in the page at all to be clicked. — James Thorpe
– James Thorpe, Commented Mar 31, 2017 at 13:45
I changed it to display none and visible=true but still nothing happans.. — EldarGoren
– EldarGoren, Commented Mar 31, 2017 at 13:47
wow. Change <asp:Button> to <asp:LinkButton> and it worked perfectly for me. Don't ask why :) — Dave Becker
– Dave Becker, Commented Mar 31, 2017 at 14:44
I don't know if I should laugh or cry haha. Thank you so much! — EldarGoren
– EldarGoren, Commented Mar 31, 2017 at 14:48

Dave Becker · Accepted Answer · 2017-03-31 15:07:55Z

2

I believe a <asp:Button> will natively post the form back without a client side event handler. You need a control that does not natively post back but instead uses a client side click handler to call the __doPostBack() function.

Change

<asp:Button ID="Helper" runat="server" OnClick="Helper_Click" />

to this

<asp:LinkButton ID="Helper" runat="server" OnClick="Helper_Click" />

edited Mar 31, 2017 at 15:07

answered Mar 31, 2017 at 14:52

Dave Becker

1,4331 gold badge13 silver badges24 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Trigger c# Event from JavaScript Function

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related