Tricky postback

[MS News \(MS ILM\)]

I tried to run your code and I am getting errors
'ASP.WebForm1_aspx' does not contain a definition for 'Login_Click'

???

"eruess" <eruess@r.com> wrote in message
news:PI6dncXcTYbddq-iRVn-hg@speakeasy.net...

> I had this problem with an authentication page where authenticating the

user

> took a few seconds and I didn't want them to keep clicking. Basically you
> have to do 2 things with 1 click... something to visually alter the

screen,

> and then handle the actual click in your c/vb.net code.
>
> Make a javascript block to do whatever you need to do on the client when
> they click the button. In the example, js renders the button "hidden".
>
> <Script Language="JavaScript">
> function clickHandler()
> {
> frmLogin.btnLogin.style.visibility = 'hidden';
> }
> </Script>
>
> In my html, here's the submit button the user clicks:
>
> <form ID="frmLogin" runat="server">
> <asp:Button ID="btnLogin" class="button" text="Log In"
> onclick="Login_Click" Runat="server" />
> </form>
>
> Now in Sub page_load, you need a call to RegisterOnSubmitStatement. This,
> afaik, tells asp.net to run the js function specified then handle the

click

> event in asp.net:
>
> Sub Page_Load(s As Object, e As EventArgs)
> RegisterOnSubmitStatement("submit", "clickHandler();")
> '...code
>
> So when the user clicks btnLogin on my form, RegisterOnSubmitStatement

calls

> the javascript that hides the button, and then my vb.net routine called
> "Login_Click" would run. 2 routines for the price of 1 click.
>
> You can augment the functionality of the clickHandler(); js routine to
> display a please wait message, etc. Just don't damage the integrity of

the

> button object from the js code or the codebehind handling the button event
> may fail. For example, I believe this code breaks if you 'disable' the
> button or remove it completely. Hiding it is safe, and certainly renders
> the button un-clickable for the remainder of the page life.
>
> HTH
>
>
> "Matt" <metal@rocks.com> wrote in message
> news:sim5jvk0oeaidumhcs8hrsch9gj1mj81rh@4ax.com...

> > Hello,
> >
> > In an aspx page i have webform with some textboxes and a simple
> > button. When the button is clicked, there is a postback and then the
> > code in the click event of the button is executed.
> >
> > However in this code (click event of the button), i'm processing an
> > online payment, which takes about 5 seconds. While waiting for the
> > payment to be processed, the user can click again on the button, and
> > this is what i want to block. I want to disable the button once
> > clicked, and then execute the code for the web payment.
> >
> > However when we disable a button in the Load event, the page is only
> > displayed after the Unload event, so the button still appears as
> > enabled when executing the code in the click event of the button.
> >
> > I tried to call a javascript function on the onclick of the button to
> > disable it but i get a compilation error at runtime. Is there a way to
> > disable a webform button when clicked, then execute the code on the
> > Click event of this button? The button needs to appear as disabled on
> > the page before the code is executed.
> >
> > Thanks for any help!

>
>

[MS News \(MS ILM\)]

Got it. Sorry I did not provide the Login_Click Sub in code Behind

"MS News (MS ILM)" <sql_agentman@hotmail.com> wrote in message
news:ujSbfzdXDHA.1680@tk2msftngp13.phx.gbl...

> I tried to run your code and I am getting errors
> 'ASP.WebForm1_aspx' does not contain a definition for 'Login_Click'
>
> ???
>
> "eruess" <eruess@r.com> wrote in message
> news:PI6dncXcTYbddq-iRVn-hg@speakeasy.net...

> > I had this problem with an authentication page where authenticating the

> user

> > took a few seconds and I didn't want them to keep clicking. Basically

you

> > have to do 2 things with 1 click... something to visually alter the

> screen,

> > and then handle the actual click in your c/vb.net code.
> >
> > Make a javascript block to do whatever you need to do on the client when
> > they click the button. In the example, js renders the button "hidden".
> >
> > <Script Language="JavaScript">
> > function clickHandler()
> > {
> > frmLogin.btnLogin.style.visibility = 'hidden';
> > }
> > </Script>
> >
> > In my html, here's the submit button the user clicks:
> >
> > <form ID="frmLogin" runat="server">
> > <asp:Button ID="btnLogin" class="button" text="Log In"
> > onclick="Login_Click" Runat="server" />
> > </form>
> >
> > Now in Sub page_load, you need a call to RegisterOnSubmitStatement.

This,

> > afaik, tells asp.net to run the js function specified then handle the

> click

> > event in asp.net:
> >
> > Sub Page_Load(s As Object, e As EventArgs)
> > RegisterOnSubmitStatement("submit", "clickHandler();")
> > '...code
> >
> > So when the user clicks btnLogin on my form, RegisterOnSubmitStatement

> calls

> > the javascript that hides the button, and then my vb.net routine called
> > "Login_Click" would run. 2 routines for the price of 1 click.
> >
> > You can augment the functionality of the clickHandler(); js routine to
> > display a please wait message, etc. Just don't damage the integrity of

> the

> > button object from the js code or the codebehind handling the button

event

> > may fail. For example, I believe this code breaks if you 'disable' the
> > button or remove it completely. Hiding it is safe, and certainly

renders

> > the button un-clickable for the remainder of the page life.
> >
> > HTH
> >
> >
> > "Matt" <metal@rocks.com> wrote in message
> > news:sim5jvk0oeaidumhcs8hrsch9gj1mj81rh@4ax.com...

> > > Hello,
> > >
> > > In an aspx page i have webform with some textboxes and a simple
> > > button. When the button is clicked, there is a postback and then the
> > > code in the click event of the button is executed.
> > >
> > > However in this code (click event of the button), i'm processing an
> > > online payment, which takes about 5 seconds. While waiting for the
> > > payment to be processed, the user can click again on the button, and
> > > this is what i want to block. I want to disable the button once
> > > clicked, and then execute the code for the web payment.
> > >
> > > However when we disable a button in the Load event, the page is only
> > > displayed after the Unload event, so the button still appears as
> > > enabled when executing the code in the click event of the button.
> > >
> > > I tried to call a javascript function on the onclick of the button to
> > > disable it but i get a compilation error at runtime. Is there a way to
> > > disable a webform button when clicked, then execute the code on the
> > > Click event of this button? The button needs to appear as disabled on
> > > the page before the code is executed.
> > >
> > > Thanks for any help!

> >
> >

>
>

[eruess]

Login_Click is the name of a Sub in my code. You'll need to modify my post
to have it function within your own project.

>>When the button is clicked, there is a postback and then the

code in the click event of the button is executed.
However in this code (click event of the button), i'm processing an
online payment, which takes about 5 seconds.<<

So then instead of trying to call my Login_Click (which doesn't exist in
your application) you'll want to call whatever sub does what you described
in the above paragraph... 'Button1_Click' or whatever you / vs.net may have
named it.

Bear in mind with my project, Login_Click did not Handle any control events
(such as clicking), and AutoEventWireUp was False. I have not tested this
thing in a situation where I'm directly calling the sub that also handles
the button's click.

"MS News (MS ILM)" <sql_agentman@hotmail.com> wrote in message
news:ujSbfzdXDHA.1680@tk2msftngp13.phx.gbl...

> I tried to run your code and I am getting errors
> 'ASP.WebForm1_aspx' does not contain a definition for 'Login_Click'
>
> ???

[Matt]

Thanks, this is exactly what i was looking for! I also added some code
in the javascript function to show a layer, containing a message and
an animated gif acting like a progress bar.

However the gif stops when the web payment code is executed, so the
gif is useless. A flash animation works but i don't want to use flash
in this project.

But the essential is that it works, thanks!



On Thu, 7 Aug 2003 17:14:13 -0700, "eruess" <eruess@r.com> wrote:

>I had this problem with an authentication page where authenticating the user
>took a few seconds and I didn't want them to keep clicking. Basically you
>have to do 2 things with 1 click... something to visually alter the screen,
>and then handle the actual click in your c/vb.net code.
>
>Make a javascript block to do whatever you need to do on the client when
>they click the button. In the example, js renders the button "hidden".
>
><Script Language="JavaScript">
> function clickHandler()
> {
> frmLogin.btnLogin.style.visibility = 'hidden';
> }
></Script>
>
>In my html, here's the submit button the user clicks:
>
><form ID="frmLogin" runat="server">
> <asp:Button ID="btnLogin" class="button" text="Log In"
>onclick="Login_Click" Runat="server" />
></form>
>
>Now in Sub page_load, you need a call to RegisterOnSubmitStatement. This,
>afaik, tells asp.net to run the js function specified then handle the click
>event in asp.net:
>
>Sub Page_Load(s As Object, e As EventArgs)
> RegisterOnSubmitStatement("submit", "clickHandler();")
> '...code
>
>So when the user clicks btnLogin on my form, RegisterOnSubmitStatement calls
>the javascript that hides the button, and then my vb.net routine called
>"Login_Click" would run. 2 routines for the price of 1 click.
>
>You can augment the functionality of the clickHandler(); js routine to
>display a please wait message, etc. Just don't damage the integrity of the
>button object from the js code or the codebehind handling the button event
>may fail. For example, I believe this code breaks if you 'disable' the
>button or remove it completely. Hiding it is safe, and certainly renders
>the button un-clickable for the remainder of the page life.
>
>HTH
>
>
>"Matt" <metal@rocks.com> wrote in message
>news:sim5jvk0oeaidumhcs8hrsch9gj1mj81rh@4ax.com.. .

>> Hello,
>>
>> In an aspx page i have webform with some textboxes and a simple
>> button. When the button is clicked, there is a postback and then the
>> code in the click event of the button is executed.
>>
>> However in this code (click event of the button), i'm processing an
>> online payment, which takes about 5 seconds. While waiting for the
>> payment to be processed, the user can click again on the button, and
>> this is what i want to block. I want to disable the button once
>> clicked, and then execute the code for the web payment.
>>
>> However when we disable a button in the Load event, the page is only
>> displayed after the Unload event, so the button still appears as
>> enabled when executing the code in the click event of the button.
>>
>> I tried to call a javascript function on the onclick of the button to
>> disable it but i get a compilation error at runtime. Is there a way to
>> disable a webform button when clicked, then execute the code on the
>> Click event of this button? The button needs to appear as disabled on
>> the page before the code is executed.
>>
>> Thanks for any help!

>

[MS News \(MS ILM\)]

Thank you, that is great

"eruess" <eruess@r.com> wrote in message
news:NOCdnXbVIPeaaq6iRVn-iA@speakeasy.net...

> Login_Click is the name of a Sub in my code. You'll need to modify my

post

> to have it function within your own project.
>

> >>When the button is clicked, there is a postback and then the

> code in the click event of the button is executed.
> However in this code (click event of the button), i'm processing an
> online payment, which takes about 5 seconds.<<
>
> So then instead of trying to call my Login_Click (which doesn't exist in
> your application) you'll want to call whatever sub does what you described
> in the above paragraph... 'Button1_Click' or whatever you / vs.net may

have

> named it.
>
> Bear in mind with my project, Login_Click did not Handle any control

events

> (such as clicking), and AutoEventWireUp was False. I have not tested this
> thing in a situation where I'm directly calling the sub that also handles
> the button's click.
>
> "MS News (MS ILM)" <sql_agentman@hotmail.com> wrote in message
> news:ujSbfzdXDHA.1680@tk2msftngp13.phx.gbl...

> > I tried to run your code and I am getting errors
> > 'ASP.WebForm1_aspx' does not contain a definition for 'Login_Click'
> >
> > ???

>
>