Trigger an asp.net LinkButton with javascript

Question

I have a page configured to hide a FileUpload control, so when you click a button it shows the file upload windows and after you choose the file it automatically submits it to the server.

Ir order for this to work i created 2 linkbuttons and a file upload but only one of the buttons is visible. When you click the button it triggers the fileupload window and when the FileUpload control has a change it triggers the submit (invisible) button. The proble I'm having is that only the OnClientClick is being triggered and the server side code is not running

<script type="text/javascript">
document.getElementById('<%= button.ClientID %>').onclick = function () {
    document.getElementById('<%= fileupload.ClientID %>').click();
    return false;    
}

document.getElementById('<%= fileupload.ClientID %>').onchange = function () {
     document.getElementById('<%= save.ClientID %>').click();
}
</script>

The save button has a onclientclick to show a modal window and should send to server

OnClick="lnkChange_OnClick" OnClientClick="ShowModalDialog(0);"

Any way to fix this?

Naresh · Accepted Answer · 2011-08-05 10:19:45Z

1

I think __doPostBack('','') will help you. Call _doPostBack function from your client side function. It will postback the page.

answered Aug 5, 2011 at 10:19

Naresh

2,68113 gold badges48 silver badges69 bronze badges

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

4 Comments

JSantos Over a year ago

I tried both __doPostBack('<%= save.ClientID %>',''); and __doPostBack('lnkChange_OnClick',''); but none called the server side code

Naresh Over a year ago

It will not be raising the server side event. It will got to Page_Load, from there you call your method.

JSantos Over a year ago

And how can I analyse it in page_load so I can call the function I need? Thanks

Naresh Over a year ago

please look into this link wiki.asp.net/page.aspx/1082/dopostback-function

Collectives™ on Stack Overflow

Trigger an asp.net LinkButton with javascript

1 Answer 1

4 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

4 Comments

Your Answer

Sign up or log in

Post as a guest

Related