469,576 Members | 1,741 Online
Bytes | Developer Community
New Post

Home Posts Topics Members FAQ

Post your question to a community of 469,576 developers. It's quick & easy.

Run JavaScript before Form Submits

Hi
How can I run a java script function before a form is submited back to the
server.
What I wish to do is have a upload form that when a user clicks the submit
button a javascript function opens a second window after this the buttons
onclick event should be run.

Is any of this possible.
Nov 18 '05 #1
14 1638
Instead of using a submit button on your form, use a regular HTML button
that has an onClick event handler on it that calls a function.

In that function, do whatever you like and when you are done invoke
formName.submit()
"Kenneth Keeley" <ke*******@hotmail.com.nowhere> wrote in message
news:uI*************@tk2msftngp13.phx.gbl...
Hi
How can I run a java script function before a form is submited back to the server.
What I wish to do is have a upload form that when a user clicks the submit
button a javascript function opens a second window after this the buttons
onclick event should be run.

Is any of this possible.

Nov 18 '05 #2
Ok then,
But what Serverside code is required to make sure the submit button was
pressed and not a clear or browser refresh button.

"Scott M." <s-***@badspamsnet.net> wrote in message
news:eN**************@TK2MSFTNGP11.phx.gbl...
Instead of using a submit button on your form, use a regular HTML button
that has an onClick event handler on it that calls a function.

In that function, do whatever you like and when you are done invoke
formName.submit()

Nov 18 '05 #3
call the javascript function and then return true.
the form will be submitted as normal.
eg
myButton.Attributes.add("onclick","doThisFirst();" );

on the page

<script>
function doThisFirst() {
alert('hello');
return true;
}
</script>
"Kenneth Keeley" <ke*******@hotmail.com.nowhere> wrote in message
news:uI*************@tk2msftngp13.phx.gbl...
Hi
How can I run a java script function before a form is submited back to the server.
What I wish to do is have a upload form that when a user clicks the submit
button a javascript function opens a second window after this the buttons
onclick event should be run.

Is any of this possible.

Nov 18 '05 #4
Yep, this is why I am having such hard time seeing the
benefits of ASP.NET. So far I feel like they turned ASP
development with .NET into a beefed up version of
FrontPage. Where as on the windows side of things I think
it is a huge improvement.
-----Original Message-----
Instead of using a submit button on your form, use a regular HTML buttonthat has an onClick event handler on it that calls a function.
In that function, do whatever you like and when you are done invokeformName.submit()
"Kenneth Keeley" <ke*******@hotmail.com.nowhere> wrote in messagenews:uI*************@tk2msftngp13.phx.gbl...
Hi
How can I run a java script function before a form is submited back to
the
server.
What I wish to do is have a upload form that when a

user clicks the submit button a javascript function opens a second window after this the buttons onclick event should be run.

Is any of this possible.

.

Nov 18 '05 #5
Oh, I think you haven't worked with it long then. It is a completely new
paradigm. Much more powerful. Much more scaleable. Not even close to
anything that FP can do.

It just so happens that your question wasn't really a .NET question. It was
a client-side JavaScript question.
"dingo" <an*******@discussions.microsoft.com> wrote in message
news:03****************************@phx.gbl...
Yep, this is why I am having such hard time seeing the
benefits of ASP.NET. So far I feel like they turned ASP
development with .NET into a beefed up version of
FrontPage. Where as on the windows side of things I think
it is a huge improvement.
-----Original Message-----
Instead of using a submit button on your form, use a

regular HTML button
that has an onClick event handler on it that calls a

function.

In that function, do whatever you like and when you are

done invoke
formName.submit()
"Kenneth Keeley" <ke*******@hotmail.com.nowhere> wrote in

message
news:uI*************@tk2msftngp13.phx.gbl...
Hi
How can I run a java script function before a form is submited back to
the
server.
What I wish to do is have a upload form that when a

user clicks the submit button a javascript function opens a second window after this the buttons onclick event should be run.

Is any of this possible.

.

Nov 18 '05 #6
In the page_load event...

If IsPostBack() Then
'Second or subsequent trip to the server

Else
'Fist time data was submitted

End If

"Kenneth Keeley" <ke*******@hotmail.com.nowhere> wrote in message
news:eW**************@TK2MSFTNGP09.phx.gbl...
Ok then,
But what Serverside code is required to make sure the submit button was
pressed and not a clear or browser refresh button.

"Scott M." <s-***@badspamsnet.net> wrote in message
news:eN**************@TK2MSFTNGP11.phx.gbl...
Instead of using a submit button on your form, use a regular HTML button
that has an onClick event handler on it that calls a function.

In that function, do whatever you like and when you are done invoke
formName.submit()


Nov 18 '05 #7
> Instead of using a submit button on your form, use a regular HTML button
that has an onClick event handler on it that calls a function.

At the HTML level form objs have a OnSubmit() and OnReset() events
handlers...

With...

1) In you script tag...
function verifyForm(IncomingForm)
{
if(FORMISVALID)
return true;
else
return false;
}

2) In form tag(1 or more forms supported cause of IncomingForm param above
just send verifyForm(...) this)...
<form ... onSubmit="return verifyForm(this);">...</form>

Now you just need to add you form processing code and your ready to go...
Nov 18 '05 #8
"Scott M." <s-***@badspamsnet.net> wrote in message
news:eD*************@TK2MSFTNGP11.phx.gbl...
In the page_load event...

If IsPostBack() Then
'Second or subsequent trip to the server

Else
'Fist time data was submitted

End If


OK but this doesn't stop the submit code from running if you press a
different button or refresh the page.
Nov 18 '05 #9
SSW
Use Javscript below
<script language="javascript">
function ConfirmOnSummit()
{
if (typeof(Page_ClientValidate) == 'function')
{
if (Page_ClientValidate())
{
if(confirm("What Ever u what to confirm or run a Java Script
code?")==1)
return true;
else
return false;
}
}
}
</script>
Create tage in aspx page.
<span onclick="javascript: return ConfirmOnSummit();"><asp:button
id="btnSubmit" runat="server" CausesValidation="False"
Text="Submit"></asp:button></span>

This Will surely work. It take all the advantage of Asp.Net

Thanks,

sswalia
MCAD, MCAD, OCA

"Kenneth Keeley" <ke*******@hotmail.com.nowhere> wrote in message
news:uI*************@tk2msftngp13.phx.gbl...
Hi
How can I run a java script function before a form is submited back to the server.
What I wish to do is have a upload form that when a user clicks the submit
button a javascript function opens a second window after this the buttons
onclick event should be run.

Is any of this possible.

Nov 18 '05 #10
SSW
Sorry Please igonre above solution. It's not for you.
"Kenneth Keeley" <ke*******@hotmail.com.nowhere> wrote in message
news:uI*************@tk2msftngp13.phx.gbl...
Hi
How can I run a java script function before a form is submited back to the server.
What I wish to do is have a upload form that when a user clicks the submit
button a javascript function opens a second window after this the buttons
onclick event should be run.

Is any of this possible.

Nov 18 '05 #11
try
Page.RegisterOnSubmitStatement

"Kenneth Keeley" <ke*******@hotmail.com.nowhere> wrote in message
news:uI*************@tk2msftngp13.phx.gbl...
Hi
How can I run a java script function before a form is submited back to the server.
What I wish to do is have a upload form that when a user clicks the submit
button a javascript function opens a second window after this the buttons
onclick event should be run.

Is any of this possible.

Nov 18 '05 #12
OK then, but how do I use it, A sample would be nice.

"Joe Gass" <jo*@dontspamme.com> wrote in message
news:Oz**************@tk2msftngp13.phx.gbl...
try
Page.RegisterOnSubmitStatement

Nov 18 '05 #13

"Kenneth Keeley" <ke*******@hotmail.com.nowhere> wrote in message
news:uB**************@TK2MSFTNGP10.phx.gbl...
"Scott M." <s-***@badspamsnet.net> wrote in message
news:eD*************@TK2MSFTNGP11.phx.gbl...
In the page_load event...

If IsPostBack() Then
'Second or subsequent trip to the server

Else
'Fist time data was submitted

End If


OK but this doesn't stop the submit code from running if you press a
different button or refresh the page.


If you refresh the page, you are not re-submitting the data, you are
re-requesting the page with whatever data was posted previously.

If you want to prevent ASP.NET server-side code from running you could use
only HTML controls and the client-side JavaScript I described in my earlier
post.
Nov 18 '05 #14
http://msdn.microsoft.com/library/en...ementTopic.asp

"Kenneth Keeley" <ke*******@hotmail.com.nowhere> wrote in message
news:uk*************@TK2MSFTNGP10.phx.gbl...
OK then, but how do I use it, A sample would be nice.

"Joe Gass" <jo*@dontspamme.com> wrote in message
news:Oz**************@tk2msftngp13.phx.gbl...
try
Page.RegisterOnSubmitStatement


Nov 18 '05 #15

This discussion thread is closed

Replies have been disabled for this discussion.

Similar topics

72 posts views Thread by Stephen Poley | last post: by
6 posts views Thread by 0utlawza | last post: by
reply views Thread by suresh191 | last post: by
By using this site, you agree to our Privacy Policy and Terms of Use.