private static void AddToTree(IBindingsTreeNode node, BindingsTree tree)
{
tree.Add(node);
foreach (var childNode in node.ChildNodes)
{
if (!childNode.IsReference)
{
AddToTree(childNode, tree);
}
}
}
public static IEnumerable <IElement> GetContextObjects(this IBindingsTreeNode node)
{
if (node is IBindingsTreeNodeReference)
{
var nodeReference = (IBindingsTreeNodeReference)node;
return(((IBindingsTreeNodeReference)node).Node.DataContext.Select(o => new SurrogateElement(o.ContextObject, nodeReference.ReferencedFrom)));
}
else
{
return(node.DataContext.Select(o => o.ContextObject));
}
}
public static BindingsTree Tree(this IBindingsTreeNode node)
{
var tree = new BindingsTree();
var nodeParent = node;
IBindingsTreeNode lastParent = null;
while (nodeParent != null)
{
lastParent = nodeParent;
nodeParent = nodeParent.ParentNode;
}
AddToTree(lastParent, tree);
return(tree);
}
public static void GetNavigationPropertyOwner(this IBindingsTreeNode bindingNode, IElement childElement, out IElement owner, out object property, out BaseType propertyType)
{
var context = bindingNode.ParentNode.DataContext.Where(e => e.ContextObject.ID == bindingNode.ParentSourceElement.ID).SingleOrDefault();
if (context != null)
{
if (context.ContainerType == ContainerType.Property)
{
owner = bindingNode.ParentNode.ParentSourceElement;
property = context.ContextObject;
propertyType = context.ContextObject.DataType;
}
else
{
owner = context.ContextObject;
if (childElement is SurrogateElement)
{
property = ((SurrogateElement)childElement).ReferencedFrom.Parent.GetProperyName();
}
else
{
property = childElement.Parent.GetProperyName();
}
propertyType = childElement.DataType;
}
}
else
{
context = bindingNode.ParentNode.DataContext.Where(e => e.ContextObject.ID == bindingNode.ParentSourceElement.Parent.ID).SingleOrDefault();
if (context != null)
{
if (context.ContainerType == ContainerType.Property)
{
owner = bindingNode.ParentNode.ParentSourceElement;
property = context.ContextObject;
propertyType = context.ContextObject.DataType;
}
else
{
owner = context.ContextObject;
if (childElement is SurrogateElement)
{
property = ((SurrogateElement)childElement).ReferencedFrom.Parent.GetProperyName();
}
else
{
property = childElement.Parent.GetProperyName();
}
propertyType = ((IElement)childElement.Parent).DataType;
}
}
else
{
owner = null;
property = null;
propertyType = null;
}
}
}
