Strokes.GetEnumerator 方法

發行項
10/29/2008

傳回物件，這個物件會實作 IEnumerator 介面，並且能逐一查看 Strokes 集合內的 Stroke 物件。

命名空間： Microsoft.Ink
組件： Microsoft.Ink (在 Microsoft.Ink.dll 中)

語法

'宣告
Public Function GetEnumerator As Strokes..::.StrokesEnumerator
'用途
Dim instance As Strokes
Dim returnValue As Strokes..::.StrokesEnumerator

returnValue = instance.GetEnumerator()

public Strokes..::.StrokesEnumerator GetEnumerator()

public:
Strokes..::.StrokesEnumerator^ GetEnumerator()

public Strokes..::.StrokesEnumerator GetEnumerator()

public function GetEnumerator() : Strokes..::.StrokesEnumerator

傳回值

型別：Microsoft.Ink.Strokes.StrokesEnumerator
傳回物件，這個物件會實作 IEnumerator 介面，並且能逐一查看 Strokes 集合內的 Stroke 物件。

範例

這些範例示範兩種列舉 Strokes 集合的方式，以便擷取集合中包含的每個 Stroke 物件。Strokes 集合是由 Ink.Strokes 屬性傳回。

這個範例會取得 Strokes 集合的 IEnumerator，並且用它來周遊集合。

Private Sub EnumerateStrokesWithEnumerator(ByVal mInk As Ink)
    ' access the Strokes property via using statement
    ' to insure that the object mStrokes is disposed when finished
    ' Otherwise, you will have a memory leak
    Using mStrokes As Strokes = mInk.Strokes
        Dim mStrokesEnumerator As IEnumerator = mStrokes.GetEnumerator()
        mStrokesEnumerator.Reset()
        While (mStrokesEnumerator.MoveNext())
            Dim S As Stroke = DirectCast(mStrokesEnumerator.Current, Stroke)
            Me.listBoxStrokeId.Items.Add(S.Id)
        End While
    End Using
End Sub

private void EnumerateStrokesWithEnumerator(Ink mInk)
{
    // access the Strokes property via using statement
    // to insure that the object mStrokes is disposed when finished
    // Otherwise, you will have a memory leak
    using (Strokes mStrokes = mInk.Strokes)
    {
        IEnumerator mStrokesEnumerator = mStrokes.GetEnumerator();
        mStrokesEnumerator.Reset();
        while (mStrokesEnumerator.MoveNext())
        {
            Stroke S = (Stroke)mStrokesEnumerator.Current;
            this.listBoxStrokeId.Items.Add(S.Id);
        }
    }
}

這個範例會使用 foreach 陳述式，該陳述式會在內部程式碼中呼叫編譯器 (Compiler) 所產生用來支援該陳述式的 GetEnumerator 方法。

Private Sub EnumerateStrokesWithForEach(ByVal mInk As Ink)
    ' access the Strokes property via using statement
    ' to insure that the object mStrokes is disposed when finished
    ' Otherwise, you will have a memory leak
    Using mStrokes As Strokes = mInk.Strokes
        For Each S As Stroke In mStrokes
            Me.listBoxStrokeId.Items.Add(S.Id)
        Next
    End Using
End Sub

private void EnumerateStrokesWithForEach(Ink mInk)
{    
    // access the Strokes property via using statement
    // to insure that the object mStrokes is disposed when finished
    // Otherwise, you will have a memory leak
    using (Strokes mStrokes = mInk.Strokes)
    {
        foreach (Stroke S in mStrokes)
        {
            this.listBoxStrokeId.Items.Add(S.Id);
        }
    }
}