public static void UpdateValue <T>(this T targetNode, IModelNode sourceNode, params Expression <Func <T, object> >[] expressions) where T : IModelNode
{
foreach (var expression in expressions)
{
var attributeName = targetNode.GetPropertyName(expression);
if (sourceNode.HasValue(attributeName))
{
var value = sourceNode.GetValue <T>(attributeName);
sourceNode.ClearValue(attributeName);
targetNode.SetValue(attributeName, value);
}
}
}
