public ColumnVirtualizationManager(DataGridContext dataGridContext)
{
Debug.Assert(dataGridContext != null);
m_dataGridContext = dataGridContext;
// Assign the ColumnVirtualizationManager to the DataGridContext
ColumnVirtualizationManager.SetColumnVirtualizationManager(m_dataGridContext, this);
this.Initialize();
unchecked
{
m_version++;
}
}
protected virtual bool OnReceivedWeakEvent(Type managerType, object sender, EventArgs e)
{
bool handled = false;
bool detachFromDataGridContext = false;
if (managerType == typeof(VisibleColumnsUpdatedEventManager))
{
this.IncrementVersion(null);
handled = true;
}
else if (managerType == typeof(ViewChangedEventManager))
{
detachFromDataGridContext = true;
this.IncrementVersion(null);
handled = true;
}
else if (managerType == typeof(ThemeChangedEventManager))
{
detachFromDataGridContext = true;
this.IncrementVersion(null);
handled = true;
}
else if (managerType == typeof(ItemsSourceChangeCompletedEventManager))
{
detachFromDataGridContext = true;
handled = true;
}
if (detachFromDataGridContext == true)
{
if (m_dataGridContext != null)
{
// Detach the ColumnVirtualizationManager from the DataGridContext and detach from the DataGridContext
ColumnVirtualizationManager.SetColumnVirtualizationManager(m_dataGridContext, null);
this.Uninitialize();
}
}
return(handled);
}
internal static void SetColumnVirtualizationManager(DependencyObject obj, ColumnVirtualizationManager value)
{
obj.SetValue(ColumnVirtualizationManager.ColumnVirtualizationManagerPropertyKey, value);
}
