Javascript alert

  • Thread starter Thread starter Peter
  • Start date Start date
P

Peter

I need a popup alert after a post back.

1) user clicks on the submit button
2) Server side code runs and if the result is false I want to display a java
script alert("It did not work")

How to do I display a popup message after a postback ?

Thank You


Peter
 
Hi Peter,

You can try this:

protected void Button1_Click(object sender, EventArgs e)
{
RegisterClientScriptBlock("test", "<script
type='text/javascript'>alert('hello world!')</script>");
}

Please let me know if it works.

Regards,
Allen Chen
Microsoft Online Support

Delighting our customers is our #1 priority. We welcome your comments and
suggestions about how we can improve the support we provide to you. Please
feel free to let my manager know what you think of the level of service
provided. You can send feedback directly to my manager at:
(e-mail address removed).

==================================================
Get notification to my posts through email? Please refer to
http://msdn.microsoft.com/en-us/subscriptions/aa948868.aspx#notifications.

Note: MSDN Managed Newsgroup support offering is for non-urgent issues
where an initial response from the community or a Microsoft Support
Engineer within 2 business day is acceptable. Please note that each follow
up response may take approximately 2 business days as the support
professional working with you may need further investigation to reach the
most efficient resolution. The offering is not appropriate for situations
that require urgent, real-time or phone-based interactions. Issues of this
nature are best handled working with a dedicated Microsoft Support Engineer
by contacting Microsoft Customer Support Services (CSS) at
http://msdn.microsoft.com/en-us/subscriptions/aa948874.aspx
==================================================
This posting is provided "AS IS" with no warranties, and confers no rights.
--------------------
| From: "Peter" <[email protected]>
| Subject: Javascript alert
| Date: Thu, 6 Nov 2008 22:09:59 -0600
| Lines: 14
| X-Priority: 3
| X-MSMail-Priority: Normal
| X-Newsreader: Microsoft Outlook Express 6.00.2900.5512
| X-RFC2646: Format=Flowed; Original
| X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579
| Message-ID: <[email protected]>
| Newsgroups: microsoft.public.dotnet.framework.aspnet
| NNTP-Posting-Host: cpe-72-129-145-58.new.res.rr.com 72.129.145.58
| Path: TK2MSFTNGHUB02.phx.gbl!TK2MSFTNGP01.phx.gbl!TK2MSFTNGP05.phx.gbl
| Xref: TK2MSFTNGHUB02.phx.gbl
microsoft.public.dotnet.framework.aspnet:79400
| X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
|
| I need a popup alert after a post back.
|
| 1) user clicks on the submit button
| 2) Server side code runs and if the result is false I want to display a
java
| script alert("It did not work")
|
| How to do I display a popup message after a postback ?
|
| Thank You
|
|
| Peter
|
|
|
 
Try to use
this.Page.ClientScript.RegisterStartupScript

I recal it works with AJAX.

George.
 
Allen Chen said:
Hi Peter,

You can try this:

protected void Button1_Click(object sender, EventArgs e)
{
RegisterClientScriptBlock("test", "<script
type='text/javascript'>alert('hello world!')</script>");
}

Please let me know if it works.

Regards,
Allen Chen
Microsoft Online Support

Delighting our customers is our #1 priority. We welcome your comments and
suggestions about how we can improve the support we provide to you. Please
feel free to let my manager know what you think of the level of service
provided. You can send feedback directly to my manager at:
(e-mail address removed).

==================================================
Get notification to my posts through email? Please refer to
http://msdn.microsoft.com/en-us/subscriptions/aa948868.aspx#notifications.

Note: MSDN Managed Newsgroup support offering is for non-urgent issues
where an initial response from the community or a Microsoft Support
Engineer within 2 business day is acceptable. Please note that each follow
up response may take approximately 2 business days as the support
professional working with you may need further investigation to reach the
most efficient resolution. The offering is not appropriate for situations
that require urgent, real-time or phone-based interactions. Issues of this
nature are best handled working with a dedicated Microsoft Support
Engineer
by contacting Microsoft Customer Support Services (CSS) at
http://msdn.microsoft.com/en-us/subscriptions/aa948874.aspx
==================================================
This posting is provided "AS IS" with no warranties, and confers no
rights.
--------------------
| From: "Peter" <[email protected]>
| Subject: Javascript alert
| Date: Thu, 6 Nov 2008 22:09:59 -0600
| Lines: 14
| X-Priority: 3
| X-MSMail-Priority: Normal
| X-Newsreader: Microsoft Outlook Express 6.00.2900.5512
| X-RFC2646: Format=Flowed; Original
| X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579
| Message-ID: <[email protected]>
| Newsgroups: microsoft.public.dotnet.framework.aspnet
| NNTP-Posting-Host: cpe-72-129-145-58.new.res.rr.com 72.129.145.58
| Path: TK2MSFTNGHUB02.phx.gbl!TK2MSFTNGP01.phx.gbl!TK2MSFTNGP05.phx.gbl
| Xref: TK2MSFTNGHUB02.phx.gbl
microsoft.public.dotnet.framework.aspnet:79400
| X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
|
| I need a popup alert after a post back.
|
| 1) user clicks on the submit button
| 2) Server side code runs and if the result is false I want to display a
java
| script alert("It did not work")
|
| How to do I display a popup message after a postback ?
|
| Thank You
|
|
| Peter
|
|
|
Click to expand...

No that does not work, I get no errors and no PopUp. If I put a break point
at the RegisterClientScriptBlock the process does stop there.
 
Mark Rae said:
George's response is correct. Do you have something like this...?

protected void MyButton_Click(object sender, System.EventArgs e)
{
bool blnResult = <do server-side processing>;

if (!blnResult)
{
ClientScript.RegisterStartupScript(GetType(), "failure", "alert('It
did not work');", true);
}
}
Click to expand...

The popup does not work even if you have

if (1==1)
{
ClientScript.RegisterStartupScript(GetType(), "failure", "alert('It
did not work');", true);
}


if I add 'ClientScript.RegisterStartupScript(GetType(), "failure",
"alert('It did not work');", true);' in the Page_Load event it pops up only
when the page loads it never displays on PostBack

protected void Page_Load(object sender, EventArgs e)

{

ClientScript.RegisterStartupScript(GetType(), "failure", "alert('It did
not work');", true);

}
 
uh....simply create a literal control in the end.
when you want to popup, change its text property to something like this.

LiteralControl1.Text = "<script type='text/javascript'>window.open("it works
finally!")</script>"

There are really so many ways to get javascript work in asp.net!
I could even use Header and added an htmlgenericcontrol with similar text.


--
Vinay Khaitan
[Windows Forms Layout Control]
http://www.smart-components.com/
 
Mark Rae said:
See my previous reply..

You've got the code in the wrong place - it needs to go in the button's
OnClick (or OnCommand) event, not the Page_Load event...
Click to expand...

It's in OnClick event and it does not work, besides in Page_Load event,
I removed it from Page_Load event and still does not work.
 
Mark Rae said:
Hmm - OK, please show the entire contents of the OnClick event...
Click to expand...

here's the code:

protected void butReport_Click(object sender, EventArgs e)
{

ClientScript.RegisterStartupScript(GetType(), "failure", "alert('It
did not work');", true);

}
 
George said:
Is it possible that you doing redirect somewhere there....

George.
Click to expand...

The problem is I am using AjaxToolkit, once I remove the UpdatePanels the
message displays. But I want to use Ajax
 
The problem is I am using AjaxToolkit, once I remove the UpdatePanels the
message displays. But I want to use Ajax
Click to expand...
Could not you tell this simple information earlier ?
 
Peter said:
The problem is I am using AjaxToolkit, once I remove the UpdatePanels the
message displays. But I want to use Ajax
Click to expand...

I use this button as the trigger

<triggers>

<asp:AsyncPostBackTrigger ControlID="butReport" EventName="Click" />

</triggers>
 
Okay, now the solution.
ScriptManager.RegisterStartupScript()
with similar argument syntax as earlier ones. If you are using update panel,
you must be using ScriptManager.
 
Vinay Khaitan said:
Okay, now the solution.
ScriptManager.RegisterStartupScript()
with similar argument syntax as earlier ones. If you are using update
panel, you must be using ScriptManager.

--
Vinay Khaitan
[Windows Forms Layout Control]
http://www.smart-components.com/
----------------------------------------------------------------


Peter said:
I use this button as the trigger

<triggers>

<asp:AsyncPostBackTrigger ControlID="butReport" EventName="Click" />

</triggers>
Click to expand...
Click to expand...

Thank you

That fixed the problem
 
Back
Top