Class ExpandableNodeCache<TNode, TItem>

Namespace

BootstrapBlazor.Components

Assembly

BootstrapBlazor.dll

节点缓存类

public class ExpandableNodeCache<TNode, TItem> where TNode : IExpandableNode<TItem>

Type Parameters

TNode

TItem

Inheritance

object

ExpandableNodeCache<TNode, TItem>

Derived

TreeNodeCache<TNode, TItem>

Inherited Members

object.GetType()

object.MemberwiseClone()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Extension Methods

ExpandableNodeExtensions.SetChildrenCheck<TNode, TItem>(TNode, CheckboxState, TreeNodeCache<TNode, TItem>?)

ExpandableNodeExtensions.SetParentCheck<TNode, TItem>(TNode, CheckboxState, TreeNodeCache<TNode, TItem>?)

ExpandableNodeExtensions.SetParentExpand<TNode, TItem>(TNode, bool)

Remarks

构造函数

Constructors

ExpandableNodeCache(Func<TItem, TItem, bool>)

节点缓存类

public ExpandableNodeCache(Func<TItem, TItem, bool> comparer)

Parameters

comparer Func<TItem, TItem, bool>

Remarks

构造函数

Properties

CollapsedNodeCache

所有已收缩行集合 作为缓存使用

protected List<TItem> CollapsedNodeCache { get; }

Property Value

List<TItem>

EqualityComparer

对象比较器

protected IEqualityComparer<TItem> EqualityComparer { get; }

Property Value

IEqualityComparer<TItem>

ExpandedNodeCache

所有已展开行集合 作为缓存使用

protected List<TItem> ExpandedNodeCache { get; }

Property Value

List<TItem>

Methods

CheckExpandAsync(TNode, Func<TNode, Task<IEnumerable<IExpandableNode<TItem>>>>)

检查当前节点是否展开

public Task CheckExpandAsync(TNode node, Func<TNode, Task<IEnumerable<IExpandableNode<TItem>>>> callback)

Parameters

node TNode

callback Func<TNode, Task<IEnumerable<IExpandableNode<TItem>>>>

Returns

Task

Find(IEnumerable<TNode>, TItem, out int)

在全部树状结构 source 中寻找指定 target

public TNode? Find(IEnumerable<TNode> source, TItem target, out int degree)

Parameters

source IEnumerable<TNode>

target TItem

degree int

树状阶层，起始为0

Returns

TNode

查询结果 查无资料时为 null

Remarks

采广度优先搜寻

ToggleNodeAsync(TNode, Func<TNode, Task<IEnumerable<IExpandableNode<TItem>>>>)

节点展开收缩状态切换方法

public virtual Task ToggleNodeAsync(TNode node, Func<TNode, Task<IEnumerable<IExpandableNode<TItem>>>> callback)

Parameters

node TNode

callback Func<TNode, Task<IEnumerable<IExpandableNode<TItem>>>>

Returns

Task

Exceptions

InvalidOperationException

TryFind(IEnumerable<TNode>, TItem, out TNode)

尝试在全部树状结构 items 中寻找指定 target

public bool TryFind(IEnumerable<TNode> items, TItem target, out TNode ret)

Parameters

items IEnumerable<TNode>

target TItem

ret TNode

查询结果 查无资料时为 null

Returns

bool

是否存在 target

Remarks

采广度优先搜寻