CheckBoxList.RaisePostDataChangedEvent Method
Definition
Important
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Notifies the ASP.NET application that the state of the CheckBoxList control has changed.
protected:
virtual void RaisePostDataChangedEvent();protected virtual void RaisePostDataChangedEvent ();abstract member RaisePostDataChangedEvent : unit -> unit
override this.RaisePostDataChangedEvent : unit -> unitProtected Overridable Sub RaisePostDataChangedEvent ()Remarks
The RaisePostDataChangedEvent method is used primarily by control developers in custom controls that derive from the CheckBoxList class.
The page framework calls the RaisePostDataChangedEvent method on a CheckBoxList control when the LoadPostData method indicates that the state of the list items have changed in the CheckBoxList control. The RaisePostDataChangedEvent method calls the OnSelectedIndexChanged method to raise the SelectedIndexChanged event. Control developers can override the OnSelectedIndexChanged method to perform custom processing when the user selects or clears list items in the control.
The RaisePostDataChangedEvent method can optionally perform validation before raising the SelectedIndexChanged event for the control. To validate a group of controls on the page when a list item within the CheckBoxList is selected, set the AutoPostBack and CausesValidation properties to true, and specify the group of controls to validate in the ValidationGroup property.
