CodeAttributeDeclarationCollection.Contains(CodeAttributeDeclaration) 方法

定义

命名空间:

System.CodeDom

程序集:

System.CodeDom.dll

包:

System.CodeDom v11.0.0-preview.4.26230.115

Source:

CodeAttributeDeclarationCollection.cs

获取或设置一个值，该值指示集合是否包含指定的 CodeAttributeDeclaration 对象。

public:
 bool Contains(System::CodeDom::CodeAttributeDeclaration ^ value);

public bool Contains(System.CodeDom.CodeAttributeDeclaration value);

member this.Contains : System.CodeDom.CodeAttributeDeclaration -> bool

Public Function Contains (value As CodeAttributeDeclaration) As Boolean

参数

value

CodeAttributeDeclaration

要 CodeAttributeDeclaration 查找的对象。

返回

Boolean

true 如果集合包含指定的对象，则为 ;否则，为 false.

示例

下面的示例使用 Contains 该方法搜索特定 CodeAttributeDeclaration 实例的存在，并获取找到它的索引值。

// Tests for the presence of a CodeAttributeDeclaration in
// the collection, and retrieves its index if it is found.
CodeAttributeDeclaration testdeclaration = new CodeAttributeDeclaration("DescriptionAttribute", new CodeAttributeArgument(new CodePrimitiveExpression("Test Description")) );
int itemIndex = -1;
if( collection.Contains( testdeclaration ) )
    itemIndex = collection.IndexOf( testdeclaration );

' Tests for the presence of a CodeAttributeDeclaration in the 
' collection, and retrieves its index if it is found.
Dim testdeclaration As New CodeAttributeDeclaration("DescriptionAttribute", New CodeAttributeArgument(New CodePrimitiveExpression("Test Description")))
Dim itemIndex As Integer = -1
If collection.Contains(testdeclaration) Then
    itemIndex = collection.IndexOf(testdeclaration)
End If

另请参阅

• IndexOf(CodeAttributeDeclaration)