Strokes.StrokesEnumerator.MoveNext Method

Article
10/19/2012

Moves the enumerator index to the next object in the collection.

Namespace: Microsoft.Ink
Assembly: Microsoft.Ink (in Microsoft.Ink.dll)

Syntax

'Declaration
Public Function MoveNext As Boolean
'Usage
Dim instance As Strokes.StrokesEnumerator 
Dim returnValue As Boolean 

returnValue = instance.MoveNext()

public bool MoveNext()

public:
virtual bool MoveNext() sealed

public final function MoveNext() : boolean

Return Value

Type: System.Boolean
Set to true if the index position references an object; false if the index position references the end of the collection.

Implements

IEnumerator.MoveNext()

Remarks

The Strokes.StrokesEnumerator supports iterating over a Strokes collection and implements the IEnumerator interface.

This method inherits from MoveNext.

Examples

These examples show two ways to enumerate the Strokes collection in order to retrieve each Stroke object contained in the collection. The Strokes collection is returned by the Ink.Strokes property.

This example obtains the IEnumerator for the Strokes collection, and uses it to traverse the collection.

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);
        }
    }
}

This example uses the foreach statement, which calls the GetEnumerator method in internal code that the compiler generates to support the statement.

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);
        }
    }
}

Platforms

Windows 7, Windows Vista, Windows Server 2008 R2, Windows Server 2008

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Framework

Supported in: 3.0

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