How to pop a message box in ASP.NET page

[kai]

Hi, All
I am trying to pop a message box in ASP.NET using JavaScript when I click
a button, but I realize the JavaScript works for HTML control button do not
work for ASP button.

Any idea how to use JavaScript to trigger a message box for ASP.NET button?

Thanks for any help.

Kai

[Steven Cheng[MSFT]]

Hi kai,
Thank you for using Microsoft Newsgroup Service. Based on your description,
you want to popup a message box when a
ASP.NET server button is clicked. Is my understanding of your problem
correct?

If so, you may try use the ServerControl's "Attributes" collection property
to add the client side event binding. For example:

You've a ASP.NET button in page named "btnPop"

then in the page class, add such code:

private void Page_Load(object sender, System.EventArgs e)
{
// Put user code to initialize the page here

btnPop.Attributes.Add("onclick","alert(\"hello\")" );
}

Then when the server button is clicked, it'll first run the client side
script and then post back to the server side. You may have a try to check
out the above suggestion.

If you have any questions on it, please feel free to let me know.
Steven Cheng
Microsoft Online Support

Get Secure! www.microsoft.com/security
(This posting is provided "AS IS", with no warranties, and confers no
rights.)

[Steve C. Orr [MVP, MCSD]]

Execute a line of code like this when you want a message box to be
displayed.
(This writes out the necessary client side javascript to your HTML page to
make the alert pop up as soon as the page is sent to their browser.)

RegisterStartupScript("startupScript", "<script
language=JavaScript>alert('This is my message.');</script>");

Here's more info:
http://msdn.microsoft.com/library/de...criptTopic.asp

--
I hope this helps,
Steve C. Orr, MCSD, MVP
http://Steve.Orr.net
Hire top-notch developers at http://www.able-consulting.com

"kai" <ka******@earthlink.net> wrote in message
news:vE*****************@newsread1.news.atl.earthl ink.net...

Hi, All
I am trying to pop a message box in ASP.NET using JavaScript when I click a button, but I realize the JavaScript works for HTML control button do not work for ASP button.

Any idea how to use JavaScript to trigger a message box for ASP.NET button?
Thanks for any help.

Kai

[kai]

Steve,
Thanks for your help. I will give a try.

Kai
"Steve C. Orr [MVP, MCSD]" <St***@Orr.net> wrote in message
news:%2****************@TK2MSFTNGP09.phx.gbl...

Execute a line of code like this when you want a message box to be
displayed.
(This writes out the necessary client side javascript to your HTML page to make the alert pop up as soon as the page is sent to their browser.)

RegisterStartupScript("startupScript", "<script
language=JavaScript>alert('This is my message.');</script>");

Here's more info:
http://msdn.microsoft.com/library/de...criptTopic.asp
--
I hope this helps,
Steve C. Orr, MCSD, MVP
http://Steve.Orr.net
Hire top-notch developers at http://www.able-consulting.com

"kai" <ka******@earthlink.net> wrote in message
news:vE*****************@newsread1.news.atl.earthl ink.net...

Hi, All
I am trying to pop a message box in ASP.NET using JavaScript when I click

a button, but I realize the JavaScript works for HTML control button

do not

work for ASP button.

Any idea how to use JavaScript to trigger a message box for ASP.NET

button?

Thanks for any help.

Kai

[kai]

Hi, Steven
Thanks for your help. I will give a try.
Kai
"Steven Cheng[MSFT]" <v-******@online.microsoft.com> wrote in message
news:lQ**************@cpmsftngxa07.phx.gbl...

Hi kai,
Thank you for using Microsoft Newsgroup Service. Based on your description, you want to popup a message box when a
ASP.NET server button is clicked. Is my understanding of your problem
correct?

If so, you may try use the ServerControl's "Attributes" collection property to add the client side event binding. For example:

You've a ASP.NET button in page named "btnPop"

then in the page class, add such code:

private void Page_Load(object sender, System.EventArgs e)
{
// Put user code to initialize the page here

btnPop.Attributes.Add("onclick","alert(\"hello\")" );
}

Then when the server button is clicked, it'll first run the client side
script and then post back to the server side. You may have a try to check out the above suggestion.

If you have any questions on it, please feel free to let me know.
Steven Cheng
Microsoft Online Support

Get Secure! www.microsoft.com/security
(This posting is provided "AS IS", with no warranties, and confers no
rights.)

[kai]

Hi, Steven

I implement your suggestion using VB.NET code:

Public Class WebForm1
Inherits System.Web.UI.Page
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load
btnPop.Attributes.Add("onclick", "alert(\'hello\')")
End Sub
End Class
HTML code is:
<%@ Page Language="vb" AutoEventWireup="false"
Codebehind="WebForm1.aspx.vb" Inherits="WebApplication6.WebForm1"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<title>WebForm1</title>
</HEAD>
<body>
<form id="Form1" method="post" runat="server">
<asp:Button id="btnPop" runat="server"></asp:Button>
</form>
</body>
</HTML>

I get error message:

"Run time error has occured. Do you whish to debug?
Line 10
Error: Invalid character"

What did I do wrong?

Thank you veru much for helping.
Kai
"Steven Cheng[MSFT]" <v-******@online.microsoft.com> wrote in message
news:lQ**************@cpmsftngxa07.phx.gbl...

Hi kai,
Thank you for using Microsoft Newsgroup Service. Based on your description, you want to popup a message box when a
ASP.NET server button is clicked. Is my understanding of your problem
correct?

If so, you may try use the ServerControl's "Attributes" collection property to add the client side event binding. For example:

You've a ASP.NET button in page named "btnPop"

then in the page class, add such code:

private void Page_Load(object sender, System.EventArgs e)
{
// Put user code to initialize the page here

btnPop.Attributes.Add("onclick","alert(\"hello\")" );
}

Then when the server button is clicked, it'll first run the client side
script and then post back to the server side. You may have a try to check out the above suggestion.

If you have any questions on it, please feel free to let me know.
Steven Cheng
Microsoft Online Support

Get Secure! www.microsoft.com/security
(This posting is provided "AS IS", with no warranties, and confers no
rights.)

[Bob Lehmann]

Either remove the escape characters - \ - from the single ticks.
btnPop.Attributes.Add("onclick", "alert('hello')")

Or write it as in the example you were given with regular quotes.
btnPop.Attributes.Add("onclick","alert(\"hello\")" );

Bob Lehmann

"kai" <ka******@earthlink.net> wrote in message
news:_S*****************@newsread1.news.atl.earthl ink.net...

Hi, Steven

I implement your suggestion using VB.NET code:

Public Class WebForm1
Inherits System.Web.UI.Page
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load
btnPop.Attributes.Add("onclick", "alert(\'hello\')")
End Sub
End Class
HTML code is:
<%@ Page Language="vb" AutoEventWireup="false"
Codebehind="WebForm1.aspx.vb" Inherits="WebApplication6.WebForm1"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<title>WebForm1</title>
</HEAD>
<body>
<form id="Form1" method="post" runat="server">
<asp:Button id="btnPop" runat="server"></asp:Button>
</form>
</body>
</HTML>

I get error message:

"Run time error has occured. Do you whish to debug?
Line 10
Error: Invalid character"

What did I do wrong?

Thank you veru much for helping.
Kai
"Steven Cheng[MSFT]" <v-******@online.microsoft.com> wrote in message
news:lQ**************@cpmsftngxa07.phx.gbl...

> Hi kai,
>
>
> Thank you for using Microsoft Newsgroup Service. Based on your

description,

> you want to popup a message box when a
> ASP.NET server button is clicked. Is my understanding of your problem
> correct?
>
> If so, you may try use the ServerControl's "Attributes" collection

property

> to add the client side event binding. For example:
>
> You've a ASP.NET button in page named "btnPop"
>
> then in the page class, add such code:
>
> private void Page_Load(object sender, System.EventArgs e)
> {
> // Put user code to initialize the page here
>
> btnPop.Attributes.Add("onclick","alert(\"hello\")" );
> }
>
> Then when the server button is clicked, it'll first run the client side > script and then post back to the server side. You may have a try to

check

> out the above suggestion.
>
> If you have any questions on it, please feel free to let me know.
>
>
> Steven Cheng
> Microsoft Online Support
>
> Get Secure! www.microsoft.com/security
> (This posting is provided "AS IS", with no warranties, and confers no
> rights.)
>
>

[kai]

Hi, Bob
It works!!! Thanks
Kai
"Bob Lehmann" <none> wrote in message
news:%2****************@TK2MSFTNGP12.phx.gbl...

Either remove the escape characters - \ - from the single ticks.
btnPop.Attributes.Add("onclick", "alert('hello')")

Or write it as in the example you were given with regular quotes.
btnPop.Attributes.Add("onclick","alert(\"hello\")" );

Bob Lehmann

"kai" <ka******@earthlink.net> wrote in message
news:_S*****************@newsread1.news.atl.earthl ink.net...

Hi, Steven

I implement your suggestion using VB.NET code:

Public Class WebForm1
Inherits System.Web.UI.Page
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load
btnPop.Attributes.Add("onclick", "alert(\'hello\')")
End Sub
End Class
HTML code is:
<%@ Page Language="vb" AutoEventWireup="false"
Codebehind="WebForm1.aspx.vb" Inherits="WebApplication6.WebForm1"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<title>WebForm1</title>
</HEAD>
<body>
<form id="Form1" method="post" runat="server">
<asp:Button id="btnPop" runat="server"></asp:Button>
</form>
</body>
</HTML>

I get error message:

"Run time error has occured. Do you whish to debug?
Line 10
Error: Invalid character"

What did I do wrong?

Thank you veru much for helping.
Kai
"Steven Cheng[MSFT]" <v-******@online.microsoft.com> wrote in message

news:lQ**************@cpmsftngxa07.phx.gbl...

> Hi kai,
>
>
> Thank you for using Microsoft Newsgroup Service. Based on your

description,

> you want to popup a message box when a
> ASP.NET server button is clicked. Is my understanding of your problem > correct?
>
> If so, you may try use the ServerControl's "Attributes" collection

property

> to add the client side event binding. For example:
>
> You've a ASP.NET button in page named "btnPop"
>
> then in the page class, add such code:
>
> private void Page_Load(object sender, System.EventArgs e)
> {
> // Put user code to initialize the page here
>
> btnPop.Attributes.Add("onclick","alert(\"hello\")" );
> }
>
> Then when the server button is clicked, it'll first run the client side > script and then post back to the server side. You may have a try to check

> out the above suggestion.
>
> If you have any questions on it, please feel free to let me know.
>
>
> Steven Cheng
> Microsoft Online Support
>
> Get Secure! www.microsoft.com/security
> (This posting is provided "AS IS", with no warranties, and confers

no > rights.)
>
>