共用方式為

FixedPage.GetTop(UIElement) 方法

  • 參考

定義

命名空間:
System.Windows.Documents
組件:
PresentationFramework.dll

傳回項目頂端與其父代 Canvas 頂端之間的距離。

public:
 static double GetTop(System::Windows::UIElement ^ element);
[System.ComponentModel.TypeConverter("System.Windows.LengthConverter, PresentationFramework, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, Custom=null")]
[System.Windows.AttachedPropertyBrowsableForChildren]
public static double GetTop (System.Windows.UIElement element);
[System.Windows.AttachedPropertyBrowsableForChildren]
[System.ComponentModel.TypeConverter("System.Windows.LengthConverter, PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, Custom=null")]
public static double GetTop (System.Windows.UIElement element);
[<System.ComponentModel.TypeConverter("System.Windows.LengthConverter, PresentationFramework, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, Custom=null")>]
[<System.Windows.AttachedPropertyBrowsableForChildren>]
static member GetTop : System.Windows.UIElement -> double
[<System.Windows.AttachedPropertyBrowsableForChildren>]
[<System.ComponentModel.TypeConverter("System.Windows.LengthConverter, PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, Custom=null")>]
static member GetTop : System.Windows.UIElement -> double
Public Shared Function GetTop (element As UIElement) As Double

參數

element
UIElement

要從中取得頂端位移的項目。

傳回

Double

項目頂端與其父代畫布頂端之間的距離。

屬性
TypeConverterAttribute AttachedPropertyBrowsableForChildrenAttribute

備註

如果尚未設定頂端位移，則會 GetTop 傳 NaN 回 。

適用於

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