FrameworkElement.MaxHeight FrameworkElement.MaxHeight FrameworkElement.MaxHeight FrameworkElement.MaxHeight Property


取得或設定元素的最大高度限制。Gets or sets the maximum height constraint of the element.

 property double MaxHeight { double get(); void set(double value); };
[System.Windows.Localizability(System.Windows.LocalizationCategory.None, Readability=System.Windows.Readability.Unreadable)]
public double MaxHeight { get; set; }
member this.MaxHeight : double with get, set
Public Property MaxHeight As Double


項目的最大高度 (以 裝置獨立單位 (每單位 1/96 英吋)device-independent units (1/96th inch per unit) 為單位)。The maximum height of the element, in 裝置獨立單位 (每單位 1/96 英吋)device-independent units (1/96th inch per unit). 預設值為 PositiveInfinityThe default value is PositiveInfinity. 這個值可以是等於或大於 0.0 的任何值。This value can be any value equal to or greater than 0.0. PositiveInfinity 也有效。PositiveInfinity is also valid.


這是指定高度資訊的三FrameworkElement個屬性之一。This is one of three properties on FrameworkElement that specify height information. 其他兩個則MinHeightHeight和。The other two are MinHeight and Height. 如果這些值之間有衝突, 則必須接受實際高度判斷的應用程式順序, 然後MinHeight MaxHeight, 如果每一個都在範圍內, Height則最後一個。If there is a conflict between these values, the order of application for actual height determination is first MinHeight must be honored, then MaxHeight, and finally if each of these are within bounds, Height.

Double值的值限制是ValidateValueCallback由機制強制執行。The value restrictions on the Double value are enforced by a ValidateValueCallback mechanism. 如果您嘗試設定不正確值, 則會擲回執行時間例外狀況。If you attempt to set an invalid value a run-time exception is thrown.

XAML Attribute UsageXAML Attribute Usage

<object MaxHeight="double"/>  


<object MaxHeight ="qualifiedDouble"/>  



等於或大於 0.0 Double之值的字串表示。String representation of a Double value equal to or greater than 0.0. 這會被視為裝置獨立單位 (1/96 英吋)device-independent unit (1/96th inch)測量。This is interpreted as a 裝置獨立單位 (1/96 英吋)device-independent unit (1/96th inch) measurement. 字串不需要明確包含小數點。Strings need not explicitly include decimal points. 例如, 的值1是可接受的。For instance a value of 1 is acceptable.

除非您Double需要將值明確設定為PositiveInfinity, 否則會套用屬性值區段中所述的相同範圍限制, 但您必須使用x:Static 標記延伸The same Double range restrictions as mentioned in the Property Value section apply, except that you must use x:Static Markup Extension if you need to explicitly set the value to be PositiveInfinity.

如上所述的 double值, 後面接著下列其中一個單元宣告字串: pxincmptA double value as described above, followed by one of the following unit declaration strings: px, in, cm, pt.

px(預設值) 為裝置獨立單位 (每單位 1/96 英吋)device-independent units (1/96th inch per unit)px (default) is 裝置獨立單位 (每單位 1/96 英吋)device-independent units (1/96th inch per unit)

in為英寸;1in = = 96pxin is inches; 1in==96px

cm為釐米;1cm = = (96/2.54) pxcm is centimeters; 1cm==(96/2.54) px

pt為點;1pt = = (96/72) pxpt is points; 1pt==(96/72) px

相依性屬性資訊Dependency Property Information

識別碼欄位Identifier field MaxHeightProperty
中繼資料屬性設定為trueMetadata properties set to true AffectsMeasure