CodeAttributeDeclarationCollection.Contains(CodeAttributeDeclaration) 方法
定义
重要
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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 -> boolPublic Function Contains (value As CodeAttributeDeclaration) As Boolean参数
- value
- CodeAttributeDeclaration
要定位的 CodeAttributeDeclaration 对象。
返回
当集合包含指定的对象时为 true；否则为 false。
示例
以下示例使用 Contains 方法搜索特定 CodeAttributeDeclaration 实例的存在，并获取找到该实例的索引值。
// Tests for the presence of a CodeAttributeDeclaration in
// the collection, and retrieves its index if it is found.
array<CodeAttributeArgument^>^temp3 = {gcnew CodeAttributeArgument( gcnew CodePrimitiveExpression( "Test Description" ) )};
CodeAttributeDeclaration^ testdeclaration = gcnew CodeAttributeDeclaration( "DescriptionAttribute",temp3 );
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.
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
