C# Grid.ChangeRow方法代码示例

		public void AutoRows5 ()
		{
			Grid grid = new Grid ();

			grid.AddColumns (new GridLength (50));
			grid.AddRows (GridLength.Auto, GridLength.Auto, GridLength.Auto, GridLength.Auto, GridLength.Auto);

			grid.AddChild (new LayoutPoker { Width = 50, Height = 50 }, 0, 0, 3, 1);
			grid.AddChild (new LayoutPoker { Width = 50, Height = 60 }, 1, 0, 3, 1);

			// When calculating the heights of automatic rows, the children added to the grid
			// distribute their height in the opposite order in which they were added.
			CreateAsyncTest (grid,
				() => {
					// Here the element with height 60 distributes its height first
					grid.CheckRowHeights ("#1", 3.33, 23.33, 23.33, 20, 0);
					grid.ChangeRow (1, 1);

					grid.ChangeRow (0, 1);
					grid.ChangeRow (1, 0);
				}, () => {
					// Reversing the rows does not stop the '60' element from
					// Distributing its height first
					grid.CheckRowHeights ("#2", 20, 23.33, 23.33, 3.33, 0);

					// Now reverse the order in which the elements are added so that
					// the '50' element distributes first.
					grid.Children.Clear ();
					grid.AddChild (new LayoutPoker { Width = 50, Height = 60 }, 1, 0, 3, 1);
					grid.AddChild (new LayoutPoker { Width = 50, Height = 50 }, 0, 0, 3, 1);

				}, () => {
					grid.CheckRowHeights ("#3", 16.66, 25.55, 25.55, 8.88, 0);
					grid.ChangeRow (1, 1);

					grid.ChangeRow (0, 1);
					grid.ChangeRow (1, 0);
				}, () => {
					grid.CheckRowHeights ("#4", 16.66, 25.55, 25.55, 8.88, 0);
				}
			);
		}

		public void AutoRows3 ()
		{
			// Start off with two elements in the first row with the larger element having rowspan = 2
			// and see how rowspan affects the rendering.
			Grid grid = new Grid ();

			grid.AddColumns (new GridLength (50), new GridLength (50));
			grid.AddRows (GridLength.Auto, GridLength.Auto, GridLength.Auto);

			grid.AddChild (new LayoutPoker { Width = 50, Height = 50 }, 0, 0, 1, 1);
			grid.AddChild (new LayoutPoker { Width = 50, Height = 60 }, 0, 1, 2, 1);

			CreateAsyncTest (grid,
				() => {
					grid.CheckRowHeights ("#1", 55, 5, 0);
					grid.ChangeRow (1, 1);
				}, () => {
					grid.CheckRowHeights ("#2", 50, 30, 30);
					grid.ChangeRow (1, 2);
				}, () => {
					grid.CheckRowHeights ("#3", 50, 0, 60);
					grid.ChangeRow (1, 0);
					grid.ChangeRow (0, 1);
				}, () => {
					grid.CheckRowHeights ("#3", 5, 55, 0);
				}
			);
		}

		public void AutoRows4 ()
		{
			// See how rowspan = 3 affects this with 5 rows.
			Grid grid = new Grid ();

			grid.AddColumns (new GridLength (50), new GridLength (50));
			grid.AddRows (GridLength.Auto, GridLength.Auto, GridLength.Auto, GridLength.Auto, GridLength.Auto);

			// Give first child a rowspan of 2
			grid.AddChild (new LayoutPoker { Width = 50, Height = 50 }, 0, 0, 1, 1);
			grid.AddChild (new LayoutPoker { Width = 50, Height = 60 }, 0, 1, 3, 1);

			CreateAsyncTest (grid,
				() => {
					// If an element spans across multiple rows and one of those rows
					// is already large enough to contain that element, it puts itself
					// entirely inside that row
					grid.CheckRowHeights ("#1", 53.33, 3.33, 3.33, 0, 0);
					grid.ChangeRow (1, 1);
				}, () => {
					// An 'auto' row which has no children whose rowspan/colspan
					// *ends* in that row has a height of zero
					grid.CheckRowHeights ("#2", 50, 20, 20, 20, 0);
					grid.ChangeRow (1, 2);
				}, () => {
					// If an element which spans multiple rows is the only element in
					// the rows it spans, it divides evenly between the rows it spans
					grid.CheckRowHeights ("#3", 50, 0, 20, 20, 20);

					grid.ChangeRow (1, 0);
					grid.ChangeRow (0, 1);
				}, () => {
					// If there are two auto rows beside each other and an element spans those
					// two rows, the total height is averaged between the two rows.
					grid.CheckRowHeights ("#4", 3.33, 53.33, 3.33, 0, 0);
				}
			);
		}

		public void AutoRows2 ()
		{
			// Start off with two elements in the first row with the smaller element having rowspan = 2
			// and see how rowspan affects the rendering.
			Grid grid = new Grid ();

			grid.AddColumns (new GridLength (50), new GridLength (50));
			grid.AddRows (GridLength.Auto, GridLength.Auto, GridLength.Auto);

			grid.AddChild (new LayoutPoker { Width = 50, Height = 50 }, 0, 0, 2, 1);
			grid.AddChild (new LayoutPoker { Width = 50, Height = 60 }, 0, 1, 1, 1);

			// Start off with both elements at row 1, and the smaller element having rowspan = 2
			CreateAsyncTest (grid,
				() => {
					// If an element spans across multiple rows and one of those rows
					// is already large enough to contain that element, it puts itself
					// entirely inside that row
					grid.CheckRowHeights ("#1", 60, 0, 0);

					grid.ChangeRow (1, 1);
				}, () => {
					// An 'auto' row which has no children whose rowspan/colspan
					// *ends* in that row has a height of zero
					grid.CheckRowHeights ("#2", 0, 60, 0);
					grid.ChangeRow (1, 2);
				}, () => {
					// If an element which spans multiple rows is the only element in
					// the rows it spans, it divides evenly between the rows it spans
					grid.CheckRowHeights ("#2", 25, 25, 60);
					grid.ChangeRow (1, 0);
					grid.ChangeRow (0, 1);
				}, () => {
					grid.CheckRowHeights ("#2", 60, 25, 25);
				}
			);
		}