MessageBoxOptions Enumeration
This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.
Namespace: System.Windows.FormsAssembly: System.Windows.Forms (in system.windows.forms.dll)
| Member name | Description | |
|---|---|---|
| DefaultDesktopOnly | The message box is displayed on the active desktop. This constant is the same as ServiceNotification except that the system displays the message box only on the default desktop of the interactive window station DefaultDesktopOnly will cause the application that raised the MessageBox to lose focus. The MessageBox that is displayed will not use visual styles. For more information, see Rendering Controls with Visual Styles. | |
| RightAlign | The message box text is right-aligned. | |
| RtlReading | Specifies that the message box text is displayed with right to left reading order. | |
| ServiceNotification | The message box is displayed on the active desktop. The caller is a service notifying the user of an event. The function displays a message box on the current active desktop, even if there is no user logged on to the computer. |
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(); } } }
private void ValidateUserEntry2()
{
// Checks the value of the text.
if (serverName.get_Text().get_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.Equals(DialogResult.Yes)) {
// Closes the parent form.
this.Close();
}
}
} //ValidateUserEntry2
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.