IImmutableSet<T>.TryGetValue(T, T) 方法
定义
确定集是否包含指定的值。Determines whether the set contains a specified value.
public:
bool TryGetValue(T equalValue, [Runtime::InteropServices::Out] T % actualValue);
public bool TryGetValue (T equalValue, out T actualValue);
abstract member TryGetValue : 'T * 'T -> bool
Public Function TryGetValue (equalValue As T, ByRef actualValue As T) As Boolean
参数
- equalValue
- T
要搜索的值。The value to search for.
- actualValue
- T
集内的匹配值(如果已找到);如果未找到匹配项,则为 equalvalue。The matching value from the set, if found, or equalvalue if there are no matches.
返回
如果找到了匹配值,则为 true;否则为 false。true if a matching value was found; otherwise, false.
注解
下面是一些 TryGetValue 可能有用的方案:Following are some scenarios where TryGetValue may be useful:
需要重用以前存储的对象引用,而不是创建新引用。You want to reuse a previously stored object reference instead of creating a new reference.
要检索有关对象的更完整数据You want to retrieve more complete data about an object