To get the size of an element at runtime, use the read-only ActualHeight and ActualWidth properties instead of Height and Width. In the Visual Studio XAML designer, the result looks like this. The default column width is "*", so you don't need to explicitly set this value for the second column. Column_4 will be twice as wide as Column_2. Column_2 will be one-half as wide as Column_4.Īfter the Auto columns are calculated, the column gets part of the remaining width. ColumnĪfter the Auto columns are calculated, the column gets part of the remaining width. This example combines fixed, auto, and proportional sizing in a Grid with 4 columns. For example, to specify that one column is 5 times wider than the second column in a 2-column layout, use "5*" and "*" for the Width properties in the ColumnDefinition elements. In XAML, star values are expressed as * (or n* for weighted star sizing). Proportional sizing, also called star sizing, distributes available space among the rows and columns of a grid by weighted proportions. For more info, see Layout panels later in this article. Whether an element resizes to its content or its container depends on how the parent container handles sizing of its children. To use auto sizing, set the Height and/or Width of UI elements to Auto. You can also use auto sizing with the rows and columns of a grid. You can use fixed values measured in effective pixels, or you can use auto or proportional sizing.Īuto sizing resizes UI elements to fit their content or parent container. The Height and Width properties specify the size of an element. Here are some common layout properties and how to use them to create fluid layouts. To create a fluid layout, use automatic or proportional sizing for elements, and allow layout panels to position their children as needed. Layout properties control the size and position of an element. Here, we discuss how to use XAML properties and layout panels to create a fluid layout. You still use static elements and values in some places, but make sure that the overall UI is responsive to different resolutions, screen sizes, and views. In practice, you use a combination of static and fluid elements to create your UI. On the other hand, fluid layouts shrink, grow, and reflow to respond to the visual space available on a device. Static layouts can become clipped across different form factors and display sizes. When the user changes the resolution or orientation of their device, the UI doesn't change. In a static layout, you give controls explicit pixel sizes and positions. The XAML layout system supports both static and fluid layouts. The foundation of a responsive layout is the appropriate use of XAML layout properties and panels to reposition, resize, and reflow content in a fluid manner. Here, we discuss how to implement responsive layouts with XAML. You can also use XAML to reposition, resize, reflow, show/hide, replace, or re-architect your app's UI, as discussed in Responsive design techniques. With a responsive layout, you can make your app look great on screens with different app window sizes, resolutions, pixel densities, and orientations. The XAML layout system provides automatic sizing of elements, layout panels, and visual states to help you create a responsive UI.
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