UserControl.AutoValidateChanged Event

Definition

Namespace:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Source:

UserControl.cs

Occurs when the AutoValidate property changes.

C#

[System.ComponentModel.Browsable(true)]
public event EventHandler? AutoValidateChanged;

Event Type

EventHandler

Attributes

BrowsableAttribute

Examples

The following code example demonstrates the use of this member. In the example, an event handler reports on the occurrence of the AutoValidateChanged 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 type UserControl named UserControl1. Then ensure that the event handler is associated with the AutoValidateChanged event.

C#

private void UserControl1_AutoValidateChanged(Object sender, EventArgs e) {

   MessageBox.Show("You are in the UserControl.AutoValidateChanged event.");
}

Remarks

If your custom control performs any of its own validation, you will need to know when a developer using your control has changed the AutoValidate property so that you can change your control's validation behavior accordingly.

Applies to

See also

• AutoValidate
• ValidateChildren()