Messagebox

[Larry Pits]

Hi All,

I just want to display a message using msgbox() and I keep on getting this
error message.

It is invalid to show a modal dialog or form when the application is not
running in UserInteractive mode. Specify the ServiceNotifica tion or
DefaultDesktopO nly style to display a notification from a service
application.

This error came from test.aspx.vb

Private Sub Img_OK_Click(By Val sender As System.Object, ByVal e As
System.Web.UI.I mageClickEventA rgs) Handles Img_OK.Click

If txt_Username.Te xt = "ABC" Then

Msgbox("Hello")

End If

End Sub



Why is wrong with this line? TIA

[Chris Smith]

Re: Messagebox

Hi Larry,

You may not use msgbox to write to a HTML client application in the manner
that you are trying.

Use the response.write method just as you always have in asp development or
drag a label control on the webform and set the .text property to your
value.

"Larry Pits" <lpits@hotmail. com> wrote in message
news:%230ve2L63 DHA.1924@TK2MSF TNGP10.phx.gbl. ..[color=blue]
> Hi All,
>
> I just want to display a message using msgbox() and I keep on getting this
> error message.
>
> It is invalid to show a modal dialog or form when the application is not
> running in UserInteractive mode. Specify the ServiceNotifica tion or
> DefaultDesktopO nly style to display a notification from a service
> application.
>
> This error came from test.aspx.vb
>
> Private Sub Img_OK_Click(By Val sender As System.Object, ByVal e As
> System.Web.UI.I mageClickEventA rgs) Handles Img_OK.Click
>
> If txt_Username.Te xt = "ABC" Then
>
> Msgbox("Hello")
>
> End If
>
> End Sub
>
>
>
> Why is wrong with this line? TIA
>
>[/color]

[Scott M.]

Re: Messagebox

MessageBoxes are produced by the client. Because you are making a web
application, this means the browser. Your code, however, will run on the
server. This is why you can't use a MessageBox from server-side code in a
web app (always been that way).

You could substitute:

response.write( "alert(yourMess ageHere)")

for your MsgBox() line.

Also, in situations where you can use the MessageBox (Windows Applications),
you should now use the MessageBox class, rather than the MsgBox() function
from VB 6. The class is used with its shared "show" method as:

MessageBox.Show (args)

-Scott M.

"Larry Pits" <lpits@hotmail. com> wrote in message
news:%230ve2L63 DHA.1924@TK2MSF TNGP10.phx.gbl. ..[color=blue]
> Hi All,
>
> I just want to display a message using msgbox() and I keep on getting this
> error message.
>
> It is invalid to show a modal dialog or form when the application is not
> running in UserInteractive mode. Specify the ServiceNotifica tion or
> DefaultDesktopO nly style to display a notification from a service
> application.
>
> This error came from test.aspx.vb
>
> Private Sub Img_OK_Click(By Val sender As System.Object, ByVal e As
> System.Web.UI.I mageClickEventA rgs) Handles Img_OK.Click
>
> If txt_Username.Te xt = "ABC" Then
>
> Msgbox("Hello")
>
> End If
>
> End Sub
>
>
>
> Why is wrong with this line? TIA
>
>[/color]