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TreeNodeView.TreeNodeEnumerator

Class

Traverses the current node view in either direction.

When the view is sorted, a default enumerator's first MoveNext() skips the first node after construction or reset. An enumerator created with an index cannot be advanced in a sorted view and throws InvalidCastException.

Definition

Namespace:Telerik.WinControls.UI

Assembly:Telerik.WinControls.UI.dll

Syntax:

public class TreeNodeView.TreeNodeEnumerator : ITreeNodeEnumerator, IDisposable, IEnumerator

Inheritance: objectTreeNodeView.TreeNodeEnumerator

Implements: IDisposableIEnumeratorITreeNodeEnumerator

Constructors

TreeNodeEnumerator(TreeNodeView, int)

Creates an enumerator positioned at an entry in the current view.

public TreeNodeEnumerator(TreeNodeView items, int position)

Parameters:itemsTreeNodeView

The view to traverse.

positionint

The zero-based position to select as the current entry.

In a sorted view, calling MoveNext() or MovePrev() on the returned enumerator throws InvalidCastException.

TreeNodeEnumerator(TreeNodeView, RadTreeNode)

Creates an enumerator positioned at the specified node when it is present in the current view.

public TreeNodeEnumerator(TreeNodeView items, RadTreeNode node)

Parameters:itemsTreeNodeView

The view to traverse.

nodeRadTreeNode

The node to select as the current entry.

TreeNodeEnumerator(TreeNodeView)

Creates an enumerator for the view's current order.

public TreeNodeEnumerator(TreeNodeView items)

Parameters:itemsTreeNodeView

The view to traverse.

In a sorted view, the first call to MoveNext() advances past the first node.

Properties

Current

RadTreeNode

Gets the current node, or null when the enumerator has no current entry.

public RadTreeNode Current { get; }

Methods

Dispose()

Releases the references held by this enumerator.

public void Dispose()

Implements: IDisposable.Dispose()

MoveNext()

Advances to the next node in the current view.

public bool MoveNext()

Returns:

bool

true if a next node exists; otherwise, false.

Implements: IEnumerator.MoveNext()

MovePrev()

Moves to the previous node in the current view.

public bool MovePrev()

Returns:

bool

true if a previous node exists; otherwise, false.

Implements: ITreeNodeEnumerator.MovePrev()

Reset()

Resets the enumerator's traversal state.

public void Reset()

Implements: IEnumerator.Reset()

In a sorted view, the next MoveNext() advances past the first node.