// Called before detaching ColumnVirtualizationManager from DataGridContext
protected virtual void Uninitialize()
{
this.ResetInternalState();
m_dataGridContext.PropertyChanged -= new PropertyChangedEventHandler(this.DataGridContext_PropertyChanged);
ItemsSourceChangeCompletedEventManager.RemoveListener(m_dataGridContext.DataGridControl, this);
ViewChangedEventManager.RemoveListener(m_dataGridContext.DataGridControl, this);
ThemeChangedEventManager.RemoveListener(m_dataGridContext.DataGridControl, this);
VisibleColumnsUpdatedEventManager.RemoveListener(m_dataGridContext.Columns, this);
m_dataGridContext = null;
}
