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A "Don't show this again" checkbox for the .NET MessageBox

, 14 May 2004
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A C# class which uses Dino Esposito's LocalCbtHook component to add a "Don't show this again" checkbox to any .NET MessageBox.

Sample Image - MessageBoxChk.gif

Introduction

Every developer is familiar with the Windows MessageBox, but sometimes we need just a little bit more. For instance, what if I want a "Don't show this warning again" checkbox at the bottom of my MessageBoxes, enabling the user to turn off certain alerts, but I don't want to write my own dialog from scratch, covering every possible button combination? The MsgBoxCheck class does just that.

Background

This article, and the MsgBoxCheck class, is built on two columns by Dino Esposito which appeared in MSDN Magazine's "Cutting Edge" in October and November of 2002. These describe the use of Windows Hooks in C#, in particular how to hook the creation and activation of the Windows MessageBox.

Using the code

Using the MsgBoxCheck class is as simple as using the Windows MessageBox. First, add a reference to MsgBoxCheck.dll in your C# project. Most people will invoke the class as follows:

    MsgBoxCheck.MessageBox dlg = new MsgBoxCheck.MessageBox();
    DialogResult dr = 
            dlg.Show(@"Software\PricklySoft\TestMsgBoxCheck",
            "DontShowAgain",DialogResult.OK,
            "Don't ask me this again",
            "Now is the time for all good men to check this message box", 
            "Hello",
            MessageBoxButtons.OK, MessageBoxIcon.Information);

The first two parameters describe the registry key, and value name used to store a boolean variable which determines if the user does not want this message box shown. The third parameter is the default return value, which will be returned immediately if the message box is not shown. Next is the text for the check box, then the message box text itself, the title, button code, and icon code.

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

About the Author

Mike Scanlon
Web Developer
United States United States
Visit http://mike.pricklysoft.com

Comments and Discussions

 
QuestionMessage box only runs once even without checkbox checked PinmemberBMarik21-Jan-14 5:19 
BugMy chkMessageBox has 2 colors? PinmemberMember 1001584128-Apr-13 11:35 
GeneralRe: My chkMessageBox has 2 colors? PinmemberProshuto19-Jun-13 23:45 
GeneralRe: My chkMessageBox has 2 colors? PinmemberMember 103232869-Oct-13 8:29 
GeneralThere is a WinApi function what does it ! Pinmemberadata210-Feb-11 9:57 
GeneralRe: There is a WinApi function what does it ! Pinmemberhype891230-Nov-12 3:24 
Generalrendering problems sometime PinmemberSergey Kolomenkin17-Mar-09 2:48 
Generalsource code Pinmemberstadelmann-peter17-Dec-08 6:32 
GeneralRe: source code Pinmemberdonor23-Dec-08 4:52 
GeneralWhere do I find the MsgBoxCheck.dll file PinmemberGlade Ross14-Jul-08 11:02 
GeneralRe: Where do I find the MsgBoxCheck.dll file PinmemberHantou30-Apr-09 10:40 
GeneralRe: Where do I find the MsgBoxCheck.dll file PinmemberMember 1001584128-Apr-13 11:25 
GeneralParameter to set the default button please PinmemberSuperCoder!19-Jun-08 3:16 
QuestionVista Problem PinmemberTurulo10-Apr-08 9:33 
AnswerRe: Vista Problem PinmemberSuperCoder!19-Jun-08 3:11 
GeneralLicense Attached Pinmemberrsbiz200426-Mar-08 1:07 
QuestionAnd in vbnet ? Pinmemberscalpa9822-Sep-07 8:31 
AnswerRe: And in vbnet ? Pinmemberrsbiz200424-Mar-08 2:44 
GeneralRe: And in vbnet ? PinmemberBMarik21-Jan-14 10:34 
Questionhow to use this from a visual c++ sln? Pinmemberlaura_glow13-Jun-07 10:06 
anybody know how to use this from a visual c++ project? is there a .h? I'm not familiar with C# dlls, thanks
Generalimplementation to HTML Pinmemberjameo186-Jun-07 3:48 
GeneralMsgBoxCheck.dll source code or reg path Pinmemberwilsoada13-Dec-06 12:37 
GeneralDon't like the use of registry PinmemberPiotr Perak20-Oct-06 4:06 
GeneralRe: Don't like the use of registry Pinmembermanisys24-Mar-08 12:31 
GeneralSource Code PinmemberMArrington6-Feb-06 3:23 

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