Class TreeLevels

A collection of TreeLevel objects.

Inheritance

System.Object

TreeLevels

Implements

System.Collections.Generic.IList<TreeLevel>

System.Collections.Generic.ICollection<TreeLevel>

System.Collections.Generic.IEnumerable<TreeLevel>

System.Collections.IEnumerable

Namespace: Syncfusion.Windows.Controls.VirtualTreeView

Assembly: Syncfusion.GridCommon.WPF.dll

Syntax

public class TreeLevels : Object, IList<TreeLevel>, ICollection<TreeLevel>, IEnumerable<TreeLevel>, IEnumerable

Constructors

TreeLevels(TreeModel)

Initializes a new instance of the TreeLevels class.

Declaration

public TreeLevels(TreeModel treeModel)

Parameters

Type	Name	Description
TreeModel	treeModel	The tree model.

Properties

Count

Gets the number of elements contained in the collection.

Declaration

public int Count { get; }

Property Value

Type
System.Int32

IsReadOnly

Gets a value indicating whether the collection is read-only.

Declaration

public bool IsReadOnly { get; }

Property Value

Type
System.Boolean

Item[Int32]

Gets or sets the TreeLevel at the specified index.

Declaration

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

Parameters

Type	Name	Description
System.Int32	index

Property Value

Type
TreeLevel

TreeModel

Gets or sets the tree model.

Declaration

public TreeModel TreeModel { get; }

Property Value

Type	Description
TreeModel	The tree model.

Methods

Add(TreeLevel)

Adds an item to the collection.

Declaration

public void Add(TreeLevel item)

Parameters

Type	Name	Description
TreeLevel	item	The object to add to the collection.

Clear()

Removes all items from the collection.

Declaration

public void Clear()

Contains(TreeLevel)

Determines whether the collection contains a specific value.

Declaration

public bool Contains(TreeLevel item)

Parameters

Type	Name	Description
TreeLevel	item	The object to locate in the collection.

Returns

Type	Description
System.Boolean	true if `item` is found in the collection; otherwise, false.

CopyTo(TreeLevel[], Int32)

Copies the elements of the collection to an System.Array, starting at a particular System.Array index.

Declaration

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

Parameters

Type	Name	Description
TreeLevel[]	array	The one-dimensional System.Array that is the destination of the elements copied from collection. The System.Array must have zero-based indexing.
System.Int32	arrayIndex	The zero-based index in `array` at which copying begins.

Exceptions

Type	Condition
System.ArgumentNullException	`array` is null.
System.ArgumentOutOfRangeException	`arrayIndex` is less than 0.
System.ArgumentException	`array` is multidimensional.-or-`arrayIndex` is equal to or greater than the length of `array`.-or-The number of elements in the source collection is greater than the available space from `arrayIndex` to the end of the destination `array`.-or-Type `T` cannot be cast automatically to the type of the destination `array`.

GetEnumerator()

Returns an enumerator that iterates through the collection.

Declaration

public IEnumerator<TreeLevel> GetEnumerator()

Returns

Type	Description
System.Collections.Generic.IEnumerator<TreeLevel>	An enumerator that can be used to iterate through the collection.

IndexOf(TreeLevel)

Determines the index of a specific item in the collection.

Declaration

public int IndexOf(TreeLevel item)

Parameters

Type	Name	Description
TreeLevel	item	The object to locate in the collection.

Returns

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

Insert(Int32, TreeLevel)

Inserts an item to the collection at the specified index.

Declaration

public void Insert(int index, TreeLevel item)

Parameters

Type	Name	Description
System.Int32	index	The zero-based index at which `item` should be inserted.
TreeLevel	item	The object to insert into the collection.

Exceptions

Type	Condition
System.ArgumentOutOfRangeException	`index` is not a valid index in the collection.

Remove(TreeLevel)

Removes the first occurrence of a specific object from the collection.

Declaration

public bool Remove(TreeLevel item)

Parameters

Type	Name	Description
TreeLevel	item	The object to remove from the collection.

Returns

Type	Description
System.Boolean	true if `item` was successfully removed from the collection; otherwise, false. This method also returns false if `item` is not found in the original collection.

RemoveAt(Int32)

Removes the collection item at the specified index.

Declaration

public void RemoveAt(int index)

Parameters

Type	Name	Description
System.Int32	index	The zero-based index of the item to remove.

Exceptions

Type	Condition
System.ArgumentOutOfRangeException	`index` is not a valid index in the collection.

Implements

System.Collections.Generic.IList<>

System.Collections.Generic.ICollection<>

System.Collections.Generic.IEnumerable<T>

System.Collections.IEnumerable