/// <summary>
/// Parse to a navigation tree node using the entity-type short name.
/// </summary>
/// <param name="entityTypeShortName"></param>
/// <returns></returns>
public static NavigateTreeNode Parse(string entityTypeShortName)
{
NavigateTreeNode.Path = string.Empty;
// Construct the root node.
var navigData = new NavigationData("root", entityTypeShortName, string.Empty, string.Empty, false, string.Empty, false);
var rootNode = new NavigateTreeNode(navigData);
rootNode.parent = null;
return(Construct(rootNode));
}
/// <summary>
/// Construct all the child nodes for the current navigation tree node.
/// </summary>
/// <param name="node">The current navigation tree node.</param>
/// <returns>Returns the current node with all its child nodes.</returns>
private static NavigateTreeNode Construct(NavigateTreeNode node)
{
if (null == node || !node.data.TypeShortName.IsSpecifiedEntityTypeShortNameExist())
{
return(node);
}
NavigateTreeNode.Path += node.data.Name != "root" ? "/" + node.data.Name + "/" + node.data.TypeFullName : string.Empty;
var navigationPropertyElems = MetadataHelper.GetNavigProperties(node.data.TypeShortName, NavigateTreeNode.Path);
foreach (var navigationPropertyElem in navigationPropertyElems)
{
if (null != navigationPropertyElem.Item1.Attribute("Name") && null != navigationPropertyElem.Item1.Attribute("Type"))
{
string navigationPropName = navigationPropertyElem.Item1.GetAttributeValue("Name");
string entityTypeFullName = navigationPropertyElem.Item1.GetAttributeValue("Type").RemoveCollectionFlag();
string entityTypeShortName = entityTypeFullName.GetLastSegment();
string path = navigationPropertyElem.Item2;
bool isCollection = navigationPropertyElem.Item1.GetAttributeValue("Type").StartsWith("Collection(");
string partner =
null != navigationPropertyElem.Item1.Attribute("Partner") ?
navigationPropertyElem.Item1.GetAttributeValue("Partner") :
string.Empty;
bool containsTarget =
null != navigationPropertyElem.Item1.Attribute("ContainsTarget") ?
Convert.ToBoolean(navigationPropertyElem.Item1.GetAttributeValue("ContainsTarget")) :
false;
var data = new NavigationData(navigationPropName, entityTypeShortName, entityTypeFullName, path, isCollection, partner, containsTarget);
var childNode = new NavigateTreeNode(data);
childNode.parent = node;
if (childNode.data.ContainsTarget && !IsEntityTypeTraverse(entityTypeShortName, node))
{
node.AddChild(NavigateTreeNode.Construct(childNode));
}
else
{
node.AddChild(childNode);
}
}
}
return(node);
}
/// <summary>
/// Parse to a navigation tree node using the entity-type short name.
/// </summary>
/// <param name="entityTypeShortName"></param>
/// <returns></returns>
public static NavigateTreeNode Parse(string entityTypeShortName)
{
NavigateTreeNode.Path = string.Empty;
// Construct the root node.
var navigData = new NavigationData("root", entityTypeShortName, string.Empty, string.Empty, false, string.Empty, false);
var rootNode = new NavigateTreeNode(navigData);
rootNode.parent = null;
return Construct(rootNode);
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="data">The navigation related data.</param>
public NavigateTreeNode(NavigationData data)
{
this.data = data;
this.children = new List<NavigateTreeNode>();
}
/// <summary>
/// Construct all the child nodes for the current navigation tree node.
/// </summary>
/// <param name="node">The current navigation tree node.</param>
/// <returns>Returns the current node with all its child nodes.</returns>
private static NavigateTreeNode Construct(NavigateTreeNode node)
{
if (null == node || !node.data.TypeShortName.IsSpecifiedEntityTypeShortNameExist())
{
return node;
}
NavigateTreeNode.Path += node.data.Name != "root" ? "/" + node.data.Name + "/" + node.data.TypeFullName : string.Empty;
var navigationPropertyElems = MetadataHelper.GetNavigProperties(node.data.TypeShortName, NavigateTreeNode.Path);
foreach (var navigationPropertyElem in navigationPropertyElems)
{
if (null != navigationPropertyElem.Item1.Attribute("Name") && null != navigationPropertyElem.Item1.Attribute("Type"))
{
string navigationPropName = navigationPropertyElem.Item1.GetAttributeValue("Name");
string entityTypeFullName = navigationPropertyElem.Item1.GetAttributeValue("Type").RemoveCollectionFlag();
string entityTypeShortName = entityTypeFullName.GetLastSegment();
string path = navigationPropertyElem.Item2;
bool isCollection = navigationPropertyElem.Item1.GetAttributeValue("Type").StartsWith("Collection(");
string partner =
null != navigationPropertyElem.Item1.Attribute("Partner") ?
navigationPropertyElem.Item1.GetAttributeValue("Partner") :
string.Empty;
bool containsTarget =
null != navigationPropertyElem.Item1.Attribute("ContainsTarget") ?
Convert.ToBoolean(navigationPropertyElem.Item1.GetAttributeValue("ContainsTarget")) :
false;
var data = new NavigationData(navigationPropName, entityTypeShortName, entityTypeFullName, path, isCollection, partner, containsTarget);
var childNode = new NavigateTreeNode(data);
childNode.parent = node;
if (childNode.data.ContainsTarget && !IsEntityTypeTraverse(entityTypeShortName, node))
{
node.AddChild(NavigateTreeNode.Construct(childNode));
}
else
{
node.AddChild(childNode);
}
}
}
return node;
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="data">The navigation related data.</param>
public NavigateTreeNode(NavigationData data)
{
this.data = data;
this.children = new List <NavigateTreeNode>();
}
