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Occurs when the value of the AutoSize property changes.
public:
 event EventHandler ^ AutoSizeChanged;[System.ComponentModel.Browsable(true)]
public event EventHandler AutoSizeChanged;[System.ComponentModel.Browsable(true)]
public event EventHandler? AutoSizeChanged;[<System.ComponentModel.Browsable(true)>]
member this.AutoSizeChanged : EventHandler Public Custom Event AutoSizeChanged As EventHandler The following code example demonstrates the use of this member. In the example, an event handler reports on the occurrence of the AutoSizeChanged event. This report helps you to learn when the event occurs and can assist you in debugging. To report on multiple events or on events that occur frequently, consider replacing MessageBox.Show with Console.WriteLine or appending the message to a multiline TextBox.
To run the example code, paste it into a project that contains an instance of a type that inherits from ButtonBase, such as a Button or CheckBox. Then name the instance ButtonBase1 and ensure that the event handler is associated with the AutoSizeChanged event.
private void ButtonBase1_AutoSizeChanged(Object sender, EventArgs e) {
   MessageBox.Show("You are in the ButtonBase.AutoSizeChanged event.");
}
Private Sub ButtonBase1_AutoSizeChanged(sender as Object, e as EventArgs) _ 
     Handles ButtonBase1.AutoSizeChanged
   MessageBox.Show("You are in the ButtonBase.AutoSizeChanged event.")
End Sub
For more information about handling events, see Handling and Raising Events.
| Product | Versions | 
|---|---|
| .NET Framework | 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 | 
| Windows Desktop | 3.0, 3.1, 5, 6, 7, 8, 9, 10 | 
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