IHierarchyData Interface

 

Exposes a node of a hierarchical data structure, including the node object and some properties that describe characteristics of the node. Objects that implement the IHierarchyData interface can be contained in IHierarchicalEnumerable collections, and are used by ASP.NET site navigation and data source controls.

Namespace:   System.Web.UI
Assembly:  System.Web (in System.Web.dll)

type IHierarchyData = interface end

NameDescription
System_CAPS_pubpropertyHasChildren

Indicates whether the hierarchical data node that the IHierarchyData object represents has any child nodes.

System_CAPS_pubpropertyItem

Gets the hierarchical data node that the IHierarchyData object represents.

System_CAPS_pubpropertyPath

Gets the hierarchical path of the node.

System_CAPS_pubpropertyType

Gets the name of the type of Object contained in the Item property.

NameDescription
System_CAPS_pubmethodGetChildren()

Gets an enumeration object that represents all the child nodes of the current hierarchical node.

System_CAPS_pubmethodGetParent()

Gets an IHierarchyData object that represents the parent node of the current hierarchical node.

The IHierarchyData interface is implemented by classes that represent nodes of a hierarchical structure, and track the hierarchical relationships to their parent and child nodes. Classes that implement the IHierarchyData interface can be contained in collections that implement the IHierarchicalEnumerable interface.

The following code example demonstrates how to implement the IHierarchyData interface with a class that wraps a FileSystemInfo object. The FileSystemInfo class is a good example of a hierarchical data node, which the IHierarchyData interface represents for ASP.NET hierarchical data source controls. This code example is part of a larger example provided for the HierarchicalDataSourceControl class.

No code example is currently available or this language may not be supported.

The following code example demonstrates how to recursively iterate through an IHierarchicalEnumerable collection, extract the IHierarchyData item from the enumerator using the GetHierarchyData method, and perform basic work with the data item.

No code example is currently available or this language may not be supported.

.NET Framework
Available since 2.0
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