CodeExpressionCollection.IndexOf(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

取得集合中指定之 CodeExpression 物件的索引 (如果它存在於集合中的話)。

public:
 int IndexOf(System::CodeDom::CodeExpression ^ value);

public int IndexOf (System.CodeDom.CodeExpression value);

member this.IndexOf : System.CodeDom.CodeExpression -> int

Public Function IndexOf (value As CodeExpression) As Integer

參數

value

CodeExpression

要放置在集合中的 CodeExpression 物件。

傳回

Int32

如果找到的話，就是集合中指定的物件之索引，否則為 -1。

範例

下列範例會搜尋特定 CodeExpression 物件是否存在，並使用 IndexOf 方法來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

• Contains(CodeExpression)