AnalysisRegion.IsEmpty 屬性

發行項
10/29/2008

取得布林值，這個值表示 AnalysisRegion 是否代表空白區域。

命名空間： System.Windows.Ink
組件： IAWinFX (在 IAWinFX.dll 中)

語法

'宣告
Public ReadOnly Property IsEmpty As Boolean
'用途
Dim instance As AnalysisRegion
Dim value As Boolean

value = instance.IsEmpty

public bool IsEmpty { get; }

public:
property bool IsEmpty {
    bool get ();
}

/** @property */
public boolean get_IsEmpty()

public function get IsEmpty () : boolean

屬性值

型別：System.Boolean
如果所表示的區域是空白，則為 true，否則為 false。

範例

下列範例會測試 AnalysisRegion (名為 theFirstAnalysisRegion) 所表示區域的範圍。

' Check whether the AnalysisRegionBase is empty, infinite, or neither.
If theFirstAnalysisRegion.IsEmpty Then
    ' Insert code here for an empty AnalysisRegionBase.
ElseIf theFirstAnalysisRegion.IsInfinite Then
    ' Insert code here for an infinite AnalysisRegionBase.
Else
    ' Insert code here for a non-empty, finite AnalysisRegionBase.
End If

// Check whether the AnalysisRegionBase is empty, infinite, or neither.
if (theFirstAnalysisRegion.IsEmpty)
{
    // Insert code here for an empty AnalysisRegionBase.
}
else if (theFirstAnalysisRegion.IsInfinite)
{
    // Insert code here for an infinite AnalysisRegionBase.
}
else
{
    // Insert code here for a non-empty, finite AnalysisRegionBase.
}