WPF MessageBox in VB.NET
This article shows how to use a MessageBox control in WPF and VB.NET.
MessageBox Dialog
A message box is a dialog box that is used to display an alert or a message or also let the user have some options to choose from. A simple message box has an OK button and looks like Figure 1.
Figure 1
A message box can have a title and multiple options such as Yes, No, and Cancel. A message box can also have some input control to take input from a user.
The MessageBox class in WPF represents a modal message box dialog, which is defined in the System.Windows namespace. The Show static method of the MessageBox is the only useful method that is used to display a message box. The following line of code uses Show method to display a message box with a simple message.
MessageBox.Show("Hello MessageBox!")
The Show method returns a MessageBoxResult enumeration, which has following values.
The following code snippet checks if the Show method returns OK then do something.
If MessageBox.Show("Hello MessageBox!") = MessageBoxResult.OK Then
' Do something
End If