CheckBox.OnClick(EventArgs) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Raises the Click event.
protected:
override void OnClick(EventArgs ^ e);protected override void OnClick (EventArgs e);override this.OnClick : EventArgs -> unitProtected Overrides Sub OnClick (e As EventArgs)Parameters
Remarks
The OnClick method changes the CheckState property. If the ThreeState property is set to true, subsequent clicks of the CheckBox will result in OnClick cycling through all the values of the CheckState enumeration. Otherwise, OnClick switches between Checked and Unchecked.
Raising an event invokes the event handler through a delegate. For more information, see Handling and Raising Events.
The OnClick method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.
Notes to Inheritors
When overriding OnClick(EventArgs) in a derived class, be sure to call the base class' OnClick(EventArgs) method so that registered delegates receive the event.
