Method CheckAllItems
CheckAllItems()
Checks all items in the collection.
public void CheckAllItems()
Remarks
This method sets the checked state of all items to true. It is useful for setting the checked state of items in a control.
CheckAllItems(bool)
Sets the checked state of all items in the collection.
public virtual void CheckAllItems(bool checkedValue)
Parameters
Remarks
This method iterates over all items in the collection and updates their checked state
to the specified checkedValue. It performs the operation
within an update context to ensure consistency.