ShowDialog Method (MessageBox)

Displays the MessageBox window and returns only when this MessageBox closes.

Syntax

Visual Basic
C#

'Declaration
 
Public Function ShowDialog() As Nullable(Of Boolean)

'Usage
 
Dim instance As MessageBox
Dim value As Nullable(Of Boolean)
 
value = instance.ShowDialog()

public Nullable<bool> ShowDialog()

Remarks

This method is not intended to be called while displaying a MessageBox inside a WindowContainer. Use ShowMessageBox instead.

Requirements

Target Platforms: Windows 11, Windows 10, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

MessageBox Class
MessageBox Members