ReadOnlyDictionary<TKey, TValue>.ContainsKey 方法

命名空间：  Microsoft.SharePoint.BusinessData.Infrastructure.Collections
程序集：  Microsoft.SharePoint（位于 Microsoft.SharePoint.dll 中）

语法

声明
Public Function ContainsKey ( _
    key As TKey _
) As Boolean
用法
Dim instance As ReadOnlyDictionary
Dim key As TKey
Dim returnValue As Boolean

returnValue = instance.ContainsKey(key)

public bool ContainsKey(
    TKey key
)

参数

• key
  类型：TKey

返回值

类型：System.Boolean

实现

IReadOnlyDictionary<TKey, TValue>.ContainsKey(TKey)

另请参阅

引用

ReadOnlyDictionary<TKey, TValue> 类

ReadOnlyDictionary<TKey, TValue> 成员

Microsoft.SharePoint.BusinessData.Infrastructure.Collections 命名空间