ExtendedProperties.Contains 方法 (Guid)

表示 ExtendedProperties 集合是否包含特定的 ExtendedProperty 物件。

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

語法

'宣告
Public Function Contains ( _
    id As Guid _
) As Boolean
'用途
Dim instance As ExtendedProperties
Dim id As Guid
Dim returnValue As Boolean

returnValue = instance.Contains(id)

public bool Contains(
    Guid id
)

public:
bool Contains(
    Guid id
)

public boolean Contains(
    Guid id
)

public function Contains(
    id : Guid
) : boolean

參數

id
型別：System.Guid
要檢查之 ExtendedProperty 物件的全域唯一識別項 (GUID)。

傳回值

型別：System.Boolean
如果 ExtendedProperties 集合包含特定的 ExtendedProperty 物件，則為 true，否則為 false。

範例

這個範例會檢查 Strokes 集合中的每個 Stroke 物件。如果 Stroke 的 ExtendedProperties 包含與特殊時間戳記 GUID 物件相關聯的屬性，便會從集合中移除 ExtendedProperty。

Private Sub RemoveAllTimeStampProperties()
    ' STROKE_START_GUID and STROKE_END_GUID
    ' are class level string const set via GUID generator
    Dim strokeStartGuid As Guid = New Guid(STROKE_START_GUID)
    Dim strokeEndGuid As Guid = New Guid(STROKE_END_GUID)

    ' 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 = mInkObject.Ink.Strokes
        For Each S As Stroke In mStrokes
            If S.ExtendedProperties.Contains(strokeStartGuid) Then
                S.ExtendedProperties.Remove(strokeStartGuid)
            End If
            If S.ExtendedProperties.Contains(strokeEndGuid) Then
                S.ExtendedProperties.Remove(strokeEndGuid)
            End If
        Next
    End Using
End Sub

private void RemoveAllTimeStampProperties()
{
    // STROKE_START_GUID and STROKE_END_GUID
    // are class level string const set via GUID generator
    Guid strokeStartGuid = new Guid(STROKE_START_GUID);
    Guid strokeEndGuid = new Guid(STROKE_END_GUID);

    // 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 = mInkObject.Ink.Strokes)
    {
        foreach (Stroke S in mStrokes)
        {
            if (S.ExtendedProperties.Contains(strokeStartGuid))
            {
                S.ExtendedProperties.Remove(strokeStartGuid);
            }
            if (S.ExtendedProperties.Contains(strokeEndGuid))
            {
                S.ExtendedProperties.Remove(strokeEndGuid);
            }
        }
    }
}