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.SfGrid.UWP.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()

Fields

isDirty

Declaration
protected bool isDirty
Field Value
Type
System.Boolean

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

Extension Methods