MSGBOX Example

Discussion in 'ASP .Net' started by Chuck Traywick, Jul 29, 2003.

  1. I am trying to get a message box to work in a web form.

    The code looks right

    But when I browse the form I get

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

    Is there something that explains how to do this.

    I want the user to click a button on a web form and then
    have a prompt to the user and then have the code perform
    based upon the user response.

    Thanks

    Chuck
     
    Chuck Traywick, Jul 29, 2003
    #1
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  2. Chuck,

    You have to do this with a javascript confirmation.

    You attach the confirmation to the client side button. Then when the button
    is clicked the confirmation box displays your message. The user can click
    "OK" or "Cancel". If they click ok the form is submitted to the server where
    you can run the code you want to execute in the button's event handler.

    I have example code for how to do this in my web site's code library. Just
    go to www.aboutfortunate.com. In the code library the title of the code you
    need is titled: Attach a javascript confirmation to any VB.Net button

    It's the third entry in the datagrid.

    I hope this helps!

    --
    S. Justin Gengo, MCP
    Web Developer

    Free code library at:
    www.aboutfortunate.com

    "Out of chaos comes order."
    Nietzche
     
    S. Justin Gengo, Jul 29, 2003
    #2
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  3. That's only for windows forms. You don't want that since you're using
    webforms.
    You must use client side code for this since you want you message box to be
    displayed on the client.
    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/d...mWebUIPageClassRegisterStartupScriptTopic.asp
     
    Steve C. Orr, MCSD, Jul 29, 2003
    #3
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