TreeNodeCollection

Namespace: Wisej.Web

Assembly: Wisej.Framework (3.5.0.0)

Represents a collection of TreeNode objects.

public class TreeNodeCollection : IList, ICollection, IEnumerable, IList<TreeNode>, ICollection<TreeNode>, IEnumerable<TreeNode>

Public Class TreeNodeCollection
    Inherits IList
    Implements ICollection, IEnumerable, IList(Of TreeNode), ICollection(Of TreeNode), IEnumerable(Of TreeNode)

Properties

Count

Int32: Returns the total number of TreeNode objects in the collection.

IsReadOnly

Boolean: Returns a value indicating whether the collection is read-only.

Item(index)

TreeNode: Returns or sets the TreeNode at the specified index in the collection.

Throws:

• ArgumentException The TreeNode being assigned is also a parent causing a circular reference.

• ArgumentNullException The value is null.

• ArgumentOutOfRangeException The index value is less than 0 or is greater than the number of tree nodes in the collection.

TreeNode: Returns the TreeNode with the specified key from the collection.

Methods

Adds a new tree node with the specified label text to the end of the current TreeNodeCollection.

Returns: TreeNode. A TreeNode that represents the tree node being added to the collection.

Creates a new TreeNode with the specified key and text, and adds it to the collection.

Returns: TreeNode. The TreeNode that was added to the collection.

Creates a TreeNode with the specified key, text, and image, and adds it to the collection.

Returns: TreeNode. The TreeNode that was added to the collection.

Creates a TreeNode with the specified key, text, and image, and adds it to the collection.

Returns: TreeNode. The TreeNode that was added to the collection.

Creates a TreeNode with the specified key, text, and images, and adds it to the collection.

Returns: TreeNode. The tree node that was added to the collection.

Creates a TreeNode with the specified key, text, and images, and adds it to the collection.

Returns: TreeNode. The TreeNode that was added to the collection.

Adds a previously created TreeNode to the end of the TreeNodeCollection.

Returns: Int32. The zero-based index value of the TreeNode added to the TreeNodeCollection.

Throws:

• ArgumentNullException node is null.

• ArgumentException The node is currently assigned to another TreeView or it is a parent node causing a circular reference.

Adds an array of previously created TreeNode objects to the collection.

Throws:

• ArgumentNullException nodes is null or one of the items in the collection is null.

• ArgumentException nodes is the child of another TreeView.

Removes all tree nodes from the collection.

Removes and disposes all tree nodes from the collection.

Determines whether the specified TreeNode is a member of the collection.

Returns: Boolean. true if the TreeNode is a member of the collection; otherwise, false.

Determines whether the collection contains a TreeNode with the specified key.

Returns: Boolean. true to indicate the collection contains a TreeNode with the specified key; otherwise, false.

Copies the entire collection into an existing array at a specified location within the array.