ExpandoObject.ICollection<KeyValuePair<String,Object>>.Contains 方法

定义

命名空间:

System.Dynamic

程序集:

System.Linq.Expressions.dll

Source:

ExpandoObject.cs

确定是否 ICollection<T> 包含一个指定键和值。

 virtual bool System.Collections.Generic.ICollection<System.Collections.Generic.KeyValuePair<System.String,System.Object>>.Contains(System::Collections::Generic::KeyValuePair<System::String ^, System::Object ^> item) = System::Collections::Generic::ICollection<System::Collections::Generic::KeyValuePair<System::String ^, System::Object ^>>::Contains;

bool ICollection<KeyValuePair<string,object>>.Contains (System.Collections.Generic.KeyValuePair<string,object> item);

abstract member System.Collections.Generic.ICollection<System.Collections.Generic.KeyValuePair<System.String,System.Object>>.Contains : System.Collections.Generic.KeyValuePair<string, obj> -> bool
override this.System.Collections.Generic.ICollection<System.Collections.Generic.KeyValuePair<System.String,System.Object>>.Contains : System.Collections.Generic.KeyValuePair<string, obj> -> bool

Function Contains (item As KeyValuePair(Of String, Object)) As Boolean Implements ICollection(Of KeyValuePair(Of String, Object)).Contains

参数

item

KeyValuePair<String,Object>

要在 KeyValuePair<TKey,TValue> 中定位的 ICollection<T> 结构。

返回

Boolean

如果集合包含一个特定键和值，则为 true；否则为 false。

实现

Contains(T)