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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Xamarin.Forms.Controls
{
public class GridGallery : ContentPage
{
public GridGallery ()
{
var layout = new StackLayout {
Orientation = StackOrientation.Vertical
};
//ColumnTypes
layout.Children.Add (new Label { Text = "Column Types:" });
var grid = new Grid {
ColumnDefinitions = {
new ColumnDefinition { Width = 80 },
new ColumnDefinition (),
new ColumnDefinition { Width = new GridLength (1, GridUnitType.Star) }
},
BackgroundColor = Color.FromRgb (0xee, 0xee, 0xee)
};
grid.Children.Add (new Label {
Text = "Absolute Width",
BackgroundColor = Color.FromRgb (0xcc, 0xcc, 0xcc),
}, 0, 0);
grid.Children.Add (new Label {
Text = "Auto Width",
BackgroundColor = Color.FromRgb (0xcc, 0xcc, 0xcc),
}, 1, 0);
grid.Children.Add (new Label {
Text = "Star",
BackgroundColor = Color.FromRgb (0xcc, 0xcc, 0xcc),
}, 2, 0);
layout.Children.Add (grid);
//Star
layout.Children.Add (new Label { Text = "Star Columns:" });
grid = new Grid {
ColumnDefinitions = {
new ColumnDefinition { Width = new GridLength (1, GridUnitType.Star) },
new ColumnDefinition { Width = new GridLength (2, GridUnitType.Star) },
new ColumnDefinition { Width = new GridLength (3, GridUnitType.Star) },
},
BackgroundColor = Color.FromRgb (0xee, 0xee, 0xee),
ColumnSpacing = 0,
RowSpacing = 0,
};
grid.Children.Add (new Label {
Text = "*",
BackgroundColor = Color.FromRgb (0xcc, 0xcc, 0xcc),
}, 0, 0);
grid.Children.Add (new Label {
Text = "**",
BackgroundColor = Color.FromRgb (0xcc, 0xcc, 0xcc),
}, 1, 0);
grid.Children.Add (new Label {
Text = "***",
BackgroundColor = Color.FromRgb (0xcc, 0xcc, 0xcc),
}, 2, 0);
layout.Children.Add (grid);
//Alignment
layout.Children.Add (new Label { Text = "Alignment:" });
grid = new Grid {
ColumnDefinitions = {
new ColumnDefinition { Width = new GridLength (1, GridUnitType.Star) },
new ColumnDefinition { Width = new GridLength (1, GridUnitType.Star) },
new ColumnDefinition { Width = new GridLength (1, GridUnitType.Star) },
new ColumnDefinition { Width = new GridLength (1, GridUnitType.Star) },
},
BackgroundColor = Color.FromRgb (0xee, 0xee, 0xee)
};
grid.Children.Add (new Label {
Text = "Right",
BackgroundColor = Color.FromRgb (0xcc, 0xcc, 0xcc),
HorizontalOptions = LayoutOptions.End,
}, 0, 0);
grid.Children.Add (new Label {
Text = "Center",
BackgroundColor = Color.FromRgb (0xcc, 0xcc, 0xcc),
HorizontalOptions = LayoutOptions.Center,
}, 1, 0);
grid.Children.Add (new Label {
Text = "Left",
BackgroundColor = Color.FromRgb (0xcc, 0xcc, 0xcc),
HorizontalOptions = LayoutOptions.Start,
}, 2, 0);
grid.Children.Add (new Label {
Text = "Fill",
BackgroundColor = Color.FromRgb (0xcc, 0xcc, 0xcc),
HorizontalOptions = LayoutOptions.Fill,
}, 3, 0);
layout.Children.Add (grid);
//Spanning
layout.Children.Add (new Label { Text = "Spans:" });
grid = new Grid {
ColumnDefinitions = {
new ColumnDefinition { Width = new GridLength (1, GridUnitType.Star) },
new ColumnDefinition { Width = new GridLength (1, GridUnitType.Star) },
new ColumnDefinition { Width = new GridLength (1, GridUnitType.Star) },
new ColumnDefinition { Width = new GridLength (1, GridUnitType.Star) },
new ColumnDefinition { Width = new GridLength (1, GridUnitType.Star) },
},
BackgroundColor = Color.FromRgb (0xee, 0xee, 0xee),
ColumnSpacing = 0,
RowSpacing = 0
};
for (var i=0;i<5;i++)
for (var j=0;j<5;j++)
grid.Children.Add (new Label {
Text = "Unit",
BackgroundColor = Color.FromRgb (0xcc, 0xcc, 0xcc),
}, i, j);
grid.Children.Add (new Label {
Text = "Spanning 4 columns",
BackgroundColor = Color.Red,
}, 0,4,0,1);
grid.Children.Add (new Label {
Text = "Spanning 3 rows",
BackgroundColor = Color.Gray,
}, 4,5, 0,3);
grid.Children.Add (new Label {
Text = "a block 3x3",
BackgroundColor = Color.Green,
}, 1,4,1,4);
layout.Children.Add (grid);
//Change Width
var col0 = new ColumnDefinition { Width = 40 };
var col1 = new ColumnDefinition { Width = 80 };
grid = new Grid {
ColumnDefinitions = new ColumnDefinitionCollection {
col0, col1
}
};
grid.Children.Add (new BoxView { BackgroundColor = Color.Red });
grid.Children.Add (new BoxView { BackgroundColor = Color.Blue },1,0);
layout.Children.Add (grid);
layout.Children.Add (new Button {
Text = "ChangeWidth",
Command = new Command (()=>{
var t = col0.Width;
col0.Width = col1.Width;
col1.Width = t;
})
});
Content = new ScrollView {
Content = layout,
};
}
}
}
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