Export (0) Print
Expand All
Expand Minimize
1 out of 1 rated this helpful - Rate this topic

MessageBoxDefaultButton Enumeration

Specifies constants defining the default button on a MessageBox.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)
public enum MessageBoxDefaultButton
Member nameDescription
Supported by the .NET Compact FrameworkButton1The first button on the message box is the default button.
Supported by the .NET Compact FrameworkButton2The second button on the message box is the default button.
Supported by the .NET Compact FrameworkButton3The third button on the message box is the default button.

This enumeration is used by the MessageBox class.

The following code example demonstrates how to display a MessageBox with the options supported by this overload of Show. After verifying that a string variable, ServerName, is empty, the example displays a MessageBox with a question box icon, offering the user the option to cancel the operation. The example uses the RightAlign member of the MessageBoxOptions enumeration to align the text to the right edge of the dialog box. If the Show method's return value evaluates to Yes, the form that displayed the MessageBox is closed.

	private void validateUserEntry2()
	{

		// Checks the value of the text. 

		if(serverName.Text.Length == 0)
		{

			// Initializes the variables to pass to the MessageBox.Show method.

			string message = "You did not enter a server name. Cancel this operation?";
			string caption = "No Server Name Specified";
			MessageBoxButtons buttons = MessageBoxButtons.YesNo;
			DialogResult result;

			// Displays the MessageBox.

			result = MessageBox.Show(this, message, caption, buttons,
				MessageBoxIcon.Question, MessageBoxDefaultButton.Button1, 
				MessageBoxOptions.RightAlign);

			if(result == DialogResult.Yes)
			{

				// Closes the parent form. 

				this.Close();

			}

		}

	}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0
Did you find this helpful?
(1500 characters remaining)
Thank you for your feedback

Community Additions

ADD
Show:
© 2014 Microsoft. All rights reserved.