CodeExpressionCollection.Contains(CodeExpression) 方法

定義

命名空間:

System.CodeDom

組件:

System.CodeDom.dll

套件:

System.CodeDom v8.0.0

來源:

CodeExpressionCollection.cs

取得值，這個值表示集合是否包含指定的 CodeExpression 物件。

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

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

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

Public Function Contains (value As CodeExpression) As Boolean

參數

value

CodeExpression

要放置在集合中的 CodeExpression 物件。

傳回

Boolean

如果集合包含指定的物件，則為 true，否則為 false。

範例

下列範例會 Contains 使用 方法來搜尋特定 CodeExpression 物件是否存在，並取得找到它的索引值。

// Tests for the presence of a CodeExpression in the 
// collection, and retrieves its index if it is found.
CodeExpression^ testComment = gcnew CodePrimitiveExpression( true );
int itemIndex = -1;
if ( collection->Contains( testComment ) )
   itemIndex = collection->IndexOf( testComment );

// Tests for the presence of a CodeExpression in the
// collection, and retrieves its index if it is found.
CodeExpression testComment = new CodePrimitiveExpression(true);
int itemIndex = -1;
if( collection.Contains( testComment ) )
    itemIndex = collection.IndexOf( testComment );

' Tests for the presence of a CodeExpression in the 
' collection, and retrieves its index if it is found.
Dim testComment = New CodePrimitiveExpression(True)
Dim itemIndex As Integer = -1
If collection.Contains(testComment) Then
    itemIndex = collection.IndexOf(testComment)
End If

另請參閱

• IndexOf(CodeExpression)