Class TreeNodeCollection

Represents a class that maintains the common functionalities of collection of TreeNode.

Inheritance

System.Object

TreeNodeCollection

Implements

System.Collections.Generic.IList<TreeNode>

System.Collections.Generic.ICollection<TreeNode>

System.Collections.Generic.IEnumerable<TreeNode>

System.Collections.IEnumerable

System.IDisposable

Namespace: Syncfusion.UI.Xaml.TreeGrid

Assembly: Syncfusion.Grid.WinUI.dll

Syntax

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

Constructors

TreeNodeCollection()

Initializes a new instance of TreeNodeCollection class.

Declaration

public TreeNodeCollection()

Properties

Count

Gets the number of elements contained in the System.Collections.Generic.ICollection<>.

Declaration

public int Count { get; }

Property Value

Type
System.Int32

IsReadOnly

Gets a value indicating whether the System.Collections.Generic.ICollection<> is read only.

Declaration

public bool IsReadOnly { get; }

Property Value

Type	Description
System.Boolean	true if the System.Collections.Generic.ICollection<> is read only; otherwise false.

Item[Int32]

Gets or sets the element at the specified index.

Declaration

public TreeNode this[int index] { get; set; }

Parameters

Type	Name	Description
System.Int32	index	The specified index.

Property Value

Type	Description
TreeNode	The element at the specified index.

MaxLevel

Get the maximum level of the tree.

Declaration

public int MaxLevel { get; }

Property Value

Type
System.Int32

ResetCache

Gets or sets a boolean value indicating whether to reset the cache.

Declaration

public bool ResetCache { get; set; }

Property Value

Type
System.Boolean

RootNodes

Gets or sets the RootNodes.

Declaration

public TreeNodes RootNodes { get; set; }

Property Value

Type
TreeNodes

Methods

Add(TreeNode)

Adds an item to the System.Collections.Generic.ICollection<>.

Declaration

public void Add(TreeNode item)

Parameters

Type	Name	Description
TreeNode	item	The corresponding item.

Clear()

Removes all items from the System.Collections.Generic.ICollection<>.

Declaration

public void Clear()

Contains(TreeNode)

Determines whether the System.Collections.Generic.ICollection<> contains a specific value.

Declaration

public bool Contains(TreeNode item)

Parameters

Type	Name	Description
TreeNode	item	The specified value.

Returns

Type	Description
System.Boolean	true if the item is found in the System.Collections.ICollection; otherwise false.

CopyTo(TreeNode[], Int32)

Copies the elements of System.Collections.Generic.ICollection<> to an System.Array starting from particular array index.

Declaration

public void CopyTo(TreeNode[] array, int arrayIndex)

Parameters

Type	Name	Description
TreeNode[]	array	The Corresponding array.
System.Int32	arrayIndex	The corresponding array index.

Dispose()

Disposes all the resources used by the TreeNodeCollection class.

Declaration

public void Dispose()

Dispose(Boolean)

Disposes all the resources used by the TreeNodeCollection class.

Declaration

protected virtual void Dispose(bool isDisposing)

Parameters

Type	Name	Description
System.Boolean	isDisposing	Indicates whether the call is from Dispose method or from a finalizer.

GetCount()

Gets the number of child nodes (+1 for the current node).

Declaration

public int GetCount()

Returns

Type	Description
System.Int32	The number of child nodes (+1 for the current node).

GetEnumerator()

Gets an enumerator that iterates thorugh the collection.

Declaration

public IEnumerator<TreeNode> GetEnumerator()

Returns

Type	Description
System.Collections.Generic.IEnumerator<TreeNode>	An enumerator that iterates thorugh the collection.

GetIndexFromData(Object)

Gets the index of the specified data.

Declaration

public int GetIndexFromData(object data)

Parameters

Type	Name	Description
System.Object	data	The specified data.

Returns

Type	Description
System.Int32	The index

GetMaxLevel()

Gets the maximum level of node in the tree node collection.

Declaration

public int GetMaxLevel()

Returns

Type	Description
System.Int32	The maximum level of node in the tree node collection

GetNode(Object)

Gets the node which matches the given data.

Declaration

public TreeNode GetNode(object data)

Parameters

Type	Name	Description
System.Object	data	data.

Returns

Type	Description
TreeNode	TreeNode.

IndexOf(TreeNode)

Determines the index of a specific treenode in the System.Collections.Generic.IList<>.

Declaration

public int IndexOf(TreeNode treeNode)

Parameters

Type	Name	Description
TreeNode	treeNode	The corresponding treenode.

Returns

Type	Description
System.Int32	The index of item if found in the list;otherwise, -1

Insert(Int32, TreeNode)

Inserts an item to System.Collections.Generic.IList<> at the specified index.

Declaration

public void Insert(int index, TreeNode item)

Parameters

Type	Name	Description
System.Int32	index	The corresponding index.
TreeNode	item	The specified item.

IsNodeInView(TreeNode)

Determines whether the TreeNode is in view or not.

Declaration

public bool IsNodeInView(TreeNode node)

Parameters

Type	Name	Description
TreeNode	node	TreeNode.

Returns

Type	Description
System.Boolean	true if the node is in view; otherwise , false.

Remove(TreeNode)

Removes the first occurence of the specified item.

Declaration

public bool Remove(TreeNode item)

Parameters

Type	Name	Description
TreeNode	item	The specified item.

Returns

Type	Description
System.Boolean	true if the item is succesfully removed; otherwise false.

RemoveAt(Int32)

Removes the item from System.Collections.Generic.IList<> at the specified index.

Declaration

public void RemoveAt(int index)

Parameters

Type	Name	Description
System.Int32	index	The specified index.

SetDirty()

Sets the dirty. When this is set to true, the YAmountCache will be re-computed for the whole node.

Declaration

public void SetDirty()

Implements

System.Collections.Generic.IList<>

System.Collections.Generic.ICollection<>

System.Collections.Generic.IEnumerable<>

System.Collections.IEnumerable

System.IDisposable