VisualElement.Measure 方法

参考

定义

命名空间:: Microsoft.Maui.Controls

程序集:: Microsoft.Maui.Controls.dll

重要

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重载

Measure(Double, Double)	返回元素在设备上显示所需的最小大小。边距从度量中排除，但以大小返回。不建议在父元素传递 `MeasureOverride` 之外调用此方法。
Measure(Double, Double, MeasureFlags)	已过时. 返回元素在设备上显示所需的最小大小。

Measure(Double, Double)

Source:: VisualElement.cs

返回元素在设备上显示所需的最小大小。边距从度量中排除，但以大小返回。不建议在父元素传递 MeasureOverride 之外调用此方法。

public:
 Microsoft::Maui::Graphics::Size Measure(double widthConstraint, double heightConstraint);

public Microsoft.Maui.Graphics.Size Measure (double widthConstraint, double heightConstraint);

member this.Measure : double * double -> Microsoft.Maui.Graphics.Size

Public Function Measure (widthConstraint As Double, heightConstraint As Double) As Size

参数

widthConstraint: Double

要呈现的元素的建议最大宽度约束。

heightConstraint: Double

要呈现的元素的建议最大高度约束。

Size

要在设备上显示元素所需的最小大小。

注解

如果元素在设备上显示的最小大小大于可以容纳widthConstraintheightConstraint，则返回值可能表示一个或两个参数中较大的矩形。

适用于

Measure(Double, Double, MeasureFlags)

Source:: VisualElement.cs

Source:: VisualElement.cs

注意

Use Measure with no flags.

返回元素在设备上显示所需的最小大小。

public virtual Microsoft.Maui.SizeRequest Measure (double widthConstraint, double heightConstraint, Microsoft.Maui.Controls.MeasureFlags flags = Microsoft.Maui.Controls.MeasureFlags.None);

[System.Obsolete("Use Measure with no flags.")]
public virtual Microsoft.Maui.SizeRequest Measure (double widthConstraint, double heightConstraint, Microsoft.Maui.Controls.MeasureFlags flags = Microsoft.Maui.Controls.MeasureFlags.None);

abstract member Measure : double * double * Microsoft.Maui.Controls.MeasureFlags -> Microsoft.Maui.SizeRequest
override this.Measure : double * double * Microsoft.Maui.Controls.MeasureFlags -> Microsoft.Maui.SizeRequest

[<System.Obsolete("Use Measure with no flags.")>]
abstract member Measure : double * double * Microsoft.Maui.Controls.MeasureFlags -> Microsoft.Maui.SizeRequest
override this.Measure : double * double * Microsoft.Maui.Controls.MeasureFlags -> Microsoft.Maui.SizeRequest

Public Overridable Function Measure (widthConstraint As Double, heightConstraint As Double, Optional flags As MeasureFlags = Microsoft.Maui.Controls.MeasureFlags.None) As SizeRequest

参数

widthConstraint: Double