/// <summary> Updates the selection checkboxes. </summary>
private void UpdateSelection()
{
foreach (var checkBox in LayersStack.Children.Cast <UIElement>().Where(uiElement => Grid.GetColumn(uiElement) == selectionColumn).OfType <CheckBox>())
{
var layer = layers[checkBox.Tag as string];
if (layers.ExclusiveSelectableLayer == null)
{
checkBox.IsChecked = layers.IsSelectableBase(layer);
}
else if (layers.ExclusiveSelectableLayer == layer)
{
updateByExclusiveSelection = true;
checkBox.IsChecked = true;
updateByExclusiveSelection = false;
}
else
{
checkBox.IsChecked = null;
}
}
}