Specifies a fixed number of rows to use for layout. Defaults to 0.ĭetermines if layout proceeds horizontally from left-to-right or vertically from top-to-bottom. Specifies the first column from the top-left (during normal layout) to display the first item. Defaults to 0 which will automatically calculate a value based on the number of items. Specifies a fixed number of columns to use for layout. Orientation instead acts more like a transpose and will push items in the first column down. FlowDirection will effectively mirror the layout on the vertical axis. Ĭhanging the FlowDirection or Orientation properties effect how FirstColumn is interpreted. These two properties can be combined to control layout flow. The UWP UniformGrid supports Orientation as well to layout items from Top-to-Bottom. In addition to FlowDirection to layout items from Right-to-Left. Any other columns or rows required by the layout will be added. By specifying a set of definitions, you can change the layout sizes of items in the grid. While the UniformGrid doesn't require the specification of RowDefinitions or ColumnDefinitions, you can override them in the UWP UniformGrid. This specific edge-case is only supported in Markup on 16299 and above for the required Markup Extension otherwise, name the element and use code-behind to set the property. (This is the ONLY way the AutoLayout property should be used.) Otherwise, the UniformGrid can't distinguish between the default locations of Grid children (0, 0) and knowing that you don't want it to be automatically arranged during layout. In order to pin a child to the top-left position (0, 0), you must specify the controls:UniformGrid.AutoLayout property to be False. This can be combined with sized items below. If a child uses the Grid.Row or Grid.Column attached properties it will be fixed in place in the grid and other children in the panel will be laid out around it instead. if the UniformGrid's next available cell is the last cell of the row, but the child is requesting to have a ColumnSpan of 2, then the item will not wrap to the next line leaving a blank space or filling with a smaller item, but instead have it's ColumnSpan request ignored. However, it's size is usually taken into account when determining how large the grid should be.Į.g. If an item is laid out in a position such that it's size would make it too large for the current layout, it may be cropped to fit within the grid instead. This can be combined with fixed items above. If a child uses the Grid.RowSpan or Grid.ColumnSpan attached properties it can be enlarged and other children in the panel will skip over those cells when being laid out.
UniformGrid supports the RowSpacing and ColumnSpacing properties added in 16299, along with the previous Padding, Margin, and CornerRadius properties. The behavior of FirstColumn has changed slightly, but only in cases where it was previously ignored in WPF.
See further notes below on the additional features the UWP UniformGrid provides compared to the WPF UniformGrid. When porting your UniformGrid XAML from WPF, just add the controls: namespace prefix to your UniformGrid and add the xmlns:controls="using.Controls" to your XAML namespace list. Try it in the sample app WPF Conversion Notes
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