Trying and failing to disable button in javascript

[teddysnips]

I'm trying to disable a button in javascript. At some point I want to
do it when a check box is checked, but for testing purposes I'm doing
it on the form submit.

var frm = document.getElementById('Form1');
frm.oldOnSubmit = frm.onsubmit;
frm.onsubmit = function() {fubar(); if (this.oldOnSubmit)
this.oldOnSubmit(); };

// Get document element
function getE(id) {
return document.getElementById(id);
}

function fubar() {
debugger;
var cmd = getE('cmdFilter');
cmd.style.visibility = "hidden";
cmd.disabled ='true';
window.status = "Please wait...";
document.title = window.status;
document.all.item("Form1").style.cursor = "wait";
return;
}

I'm hitting the debugger; breakpoint, but when the code has run the
button "cmdFilter" is unaffected - neither hidden nor disabled.

Help, please!

Thanks

Edward

 

[Peter Bromberg [C# MVP]]

check if your getE function is returning an object. Most likely it isn't.
ASP.NET has a NamingContainer hierarchy that mangles the ClientID of controls
to reflect their parent controls. That means that to get the correct
client-side control Id, you would need to do something like:

var cmd = getE( '<%=cmdFilter.ClientId %>' );

-- Peter
Site: http://www.eggheadcafe.com
UnBlog: http://petesbloggerama.blogspot.com
Short Urls & more: http://ittyurl.net

 

[teddysnips]

check if your getE function is returning an object. Most likely it isn't.
ASP.NET has a NamingContainer hierarchy that mangles the ClientID of controls
to reflect their parent controls.  That means that to get the correct
client-side control Id, you would need to do something like:

var cmd = getE( '<%=cmdFilter.ClientId %>'   );

-- Peter
Site:http://www.eggheadcafe.com
UnBlog:http://petesbloggerama.blogspot.com
Short Urls & more:http://ittyurl.net

Thanks, Peter, but that doesn't work. In any case, getE function was
returning an object. What's peculiar is that if I set a watch on the
values of cmd.style.visibility and cmd.disabled their respective
values are "hidden" and 'true', as expected. However, this is not
reflected on the form, where the control remains stubbornly visible
and enabled.

Edward

 

[Microsoft Newsserver]

Why not add an onclick event to the button which hides it before passing the
event on for submit.

myonclick()
{
//your stuff

return true;
}

check if your getE function is returning an object. Most likely it isn't.
ASP.NET has a NamingContainer hierarchy that mangles the ClientID of
controls
to reflect their parent controls. That means that to get the correct
client-side control Id, you would need to do something like:

var cmd = getE( '<%=cmdFilter.ClientId %>' );

-- Peter
Site:http://www.eggheadcafe.com
UnBlog:http://petesbloggerama.blogspot.com
Short Urls & more:http://ittyurl.net

Thanks, Peter, but that doesn't work. In any case, getE function was
returning an object. What's peculiar is that if I set a watch on the
values of cmd.style.visibility and cmd.disabled their respective
values are "hidden" and 'true', as expected. However, this is not
reflected on the form, where the control remains stubbornly visible
and enabled.

Edward