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31 changes: 31 additions & 0 deletions
31
Microsoft.Toolkit.Uwp.SampleApp/SamplePages/EnumValuesExtension/EnumValuesExtensionCode.bind
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| // Let's declare a sample enum | ||
| public enum Animal | ||
| { | ||
| Cat, | ||
| Dog, | ||
| Bunny, | ||
| Parrot, | ||
| Squirrel | ||
| } | ||
|
|
||
| // We can use a converter to get other values from our enum | ||
| public sealed class AnimalToColorConverter : IValueConverter | ||
| { | ||
| public object Convert(object value, Type targetType, object parameter, string language) | ||
| { | ||
| return (Animal)value switch | ||
| { | ||
| Animal.Cat => Colors.Coral, | ||
| Animal.Dog => Colors.Gray, | ||
| Animal.Bunny => Colors.Green, | ||
| Animal.Parrot => Colors.YellowGreen, | ||
| Animal.Squirrel => Colors.SaddleBrown, | ||
| _ => throw new ArgumentException("Invalid value", nameof(value)) | ||
| }; | ||
| } | ||
|
|
||
| public object ConvertBack(object value, Type targetType, object parameter, string language) | ||
| { | ||
| throw new NotImplementedException(); | ||
| } | ||
| } |
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Microsoft.Toolkit.Uwp.SampleApp/SamplePages/EnumValuesExtension/EnumValuesExtensionPage.xaml
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| <Page x:Class="Microsoft.Toolkit.Uwp.SampleApp.SamplePages.EnumValuesExtensionPage" | ||
| xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" | ||
| xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" | ||
| xmlns:d="http://schemas.microsoft.com/expression/blend/2008" | ||
| xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" | ||
| xmlns:ex="using:Microsoft.Toolkit.Uwp.UI.Extensions" | ||
| xmlns:enums="using:Microsoft.Toolkit.Uwp.SampleApp.Enums" | ||
| xmlns:converters="using:Microsoft.Toolkit.Uwp.SampleApp.Converters" | ||
| mc:Ignorable="d"> | ||
| <Page.Resources> | ||
| <enums:Animal x:Key="MyAnimal">Cat</enums:Animal> | ||
| <converters:AnimalToColorConverter x:Key="AnimalToColorConverter"/> | ||
| </Page.Resources> | ||
| <Grid> | ||
| <StackPanel Spacing="8"> | ||
| <ComboBox ItemsSource="{ex:EnumValues Type=enums:Animal}"/> | ||
| <ComboBox ItemsSource="{ex:EnumValues Type=enums:Animal}" | ||
| SelectedIndex="0"> | ||
| <ComboBox.ItemTemplate> | ||
| <DataTemplate> | ||
| <StackPanel Orientation="Horizontal"> | ||
| <TextBlock Text="{Binding}"/> | ||
| <Rectangle Height="16" | ||
| Width="16"> | ||
| <Rectangle.Fill> | ||
| <SolidColorBrush Color="{Binding Converter={StaticResource AnimalToColorConverter}}"/> | ||
| </Rectangle.Fill> | ||
| </Rectangle> | ||
| </StackPanel> | ||
| </DataTemplate> | ||
| </ComboBox.ItemTemplate> | ||
| </ComboBox> | ||
| </StackPanel> | ||
| </Grid> | ||
| </Page> |
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...oft.Toolkit.Uwp.SampleApp/SamplePages/EnumValuesExtension/EnumValuesExtensionPage.xaml.cs
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| // Licensed to the .NET Foundation under one or more agreements. | ||
| // The .NET Foundation licenses this file to you under the MIT license. | ||
| // See the LICENSE file in the project root for more information. | ||
|
|
||
| using System; | ||
| using Windows.UI; | ||
| using Microsoft.Toolkit.Uwp.UI.Extensions; | ||
| using Windows.UI.Xaml; | ||
| using Windows.UI.Xaml.Data; | ||
| using Microsoft.Toolkit.Uwp.SampleApp.Enums; | ||
|
|
||
| namespace Microsoft.Toolkit.Uwp.SampleApp.SamplePages | ||
| { | ||
| /// <summary> | ||
| /// A page that shows how to use the <see cref="EnumValuesExtension"/> type. | ||
| /// </summary> | ||
| public sealed partial class EnumValuesExtensionPage : IXamlRenderListener | ||
| { | ||
| /// <summary> | ||
| /// Initializes a new instance of the <see cref="EnumValuesExtensionPage"/> class. | ||
| /// </summary> | ||
| public EnumValuesExtensionPage() | ||
| { | ||
| InitializeComponent(); | ||
| } | ||
|
|
||
| public void OnXamlRendered(FrameworkElement control) | ||
| { | ||
| } | ||
| } | ||
| } | ||
|
|
||
| #pragma warning disable SA1403 // File may only contain a single namespace | ||
| namespace Microsoft.Toolkit.Uwp.SampleApp.Enums | ||
| { | ||
| public enum Animal | ||
| { | ||
| Cat, | ||
| Dog, | ||
| Bunny, | ||
| Parrot, | ||
| Squirrel | ||
| } | ||
| } | ||
|
|
||
| namespace Microsoft.Toolkit.Uwp.SampleApp.Converters | ||
| { | ||
| public sealed class AnimalToColorConverter : IValueConverter | ||
| { | ||
| public object Convert(object value, Type targetType, object parameter, string language) | ||
| { | ||
| return (Animal)value switch | ||
| { | ||
| Animal.Cat => Colors.Coral, | ||
| Animal.Dog => Colors.Gray, | ||
| Animal.Bunny => Colors.Green, | ||
| Animal.Parrot => Colors.YellowGreen, | ||
| Animal.Squirrel => Colors.SaddleBrown, | ||
| _ => throw new ArgumentException("Invalid value", nameof(value)) | ||
| }; | ||
| } | ||
|
|
||
| public object ConvertBack(object value, Type targetType, object parameter, string language) | ||
| { | ||
| throw new NotImplementedException(); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| #pragma warning restore SA1403 |
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47
Microsoft.Toolkit.Uwp.SampleApp/SamplePages/EnumValuesExtension/EnumValuesExtensionXaml.bind
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| <Page | ||
| xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" | ||
| xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" | ||
| xmlns:local="using:Microsoft.Toolkit.Uwp.SampleApp.SamplePages.EnumValuesExtensionPage" | ||
| xmlns:d="http://schemas.microsoft.com/expression/blend/2008" | ||
| xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" | ||
| xmlns:ex="using:Microsoft.Toolkit.Uwp.UI.Extensions" | ||
| xmlns:enums="using:Microsoft.Toolkit.Uwp.SampleApp.Enums" | ||
| xmlns:converters="using:Microsoft.Toolkit.Uwp.SampleApp.Converters" | ||
| mc:Ignorable="d"> | ||
| <Page.Resources> | ||
| <converters:AnimalToColorConverter x:Key="AnimalToColorConverter"/> | ||
| </Page.Resources> | ||
| <Grid> | ||
| <StackPanel Spacing="8" | ||
| HorizontalAlignment="Center" | ||
| VerticalAlignment="Center"> | ||
|
|
||
| <!--Simple selector using the default template. Each item will | ||
| simply be displayed as the corresponding enum value name.--> | ||
| <TextBlock Text="Select an animal:"/> | ||
| <ComboBox ItemsSource="{ex:EnumValues Type=enums:Animal}" | ||
| SelectedIndex="0"/> | ||
|
|
||
| <!--We can also use a custom template and some converters.--> | ||
| <TextBlock Margin="0,12,0,0" | ||
| Text="Pick another animal:"/> | ||
| <ComboBox ItemsSource="{ex:EnumValues Type=enums:Animal}" | ||
| SelectedIndex="0"> | ||
| <ComboBox.ItemTemplate> | ||
| <DataTemplate> | ||
| <Grid Width="80"> | ||
| <TextBlock Text="{Binding}"/> | ||
| <Rectangle Height="16" | ||
| Width="16" | ||
| HorizontalAlignment="Right"> | ||
| <Rectangle.Fill> | ||
| <SolidColorBrush Color="{Binding Converter={StaticResource AnimalToColorConverter}}"/> | ||
| </Rectangle.Fill> | ||
| </Rectangle> | ||
| </Grid> | ||
| </DataTemplate> | ||
| </ComboBox.ItemTemplate> | ||
| </ComboBox> | ||
| </StackPanel> | ||
| </Grid> | ||
| </Page> |
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24 changes: 24 additions & 0 deletions
24
Microsoft.Toolkit.Uwp.UI/Extensions/Markup/EnumValuesExtension.cs
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| // Licensed to the .NET Foundation under one or more agreements. | ||
| // The .NET Foundation licenses this file to you under the MIT license. | ||
| // See the LICENSE file in the project root for more information. | ||
|
|
||
| using System; | ||
| using Windows.UI.Xaml.Markup; | ||
|
|
||
| namespace Microsoft.Toolkit.Uwp.UI.Extensions | ||
| { | ||
| /// <summary> | ||
| /// A markup extension that returns a collection of values of a specific <see langword="enum"/> | ||
| /// </summary> | ||
| [MarkupExtensionReturnType(ReturnType = typeof(Array))] | ||
| public sealed class EnumValuesExtension : MarkupExtension | ||
| { | ||
| /// <summary> | ||
| /// Gets or sets the <see cref="System.Type"/> of the target <see langword="enum"/> | ||
| /// </summary> | ||
| public Type Type { get; set; } | ||
|
|
||
| /// <inheritdoc/> | ||
| protected override object ProvideValue() => Enum.GetValues(Type); | ||
| } | ||
| } |
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48 changes: 48 additions & 0 deletions
48
UnitTests/UnitTests.UWP/Extensions/Test_EnumValuesExtension.cs
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| // Licensed to the .NET Foundation under one or more agreements. | ||
| // The .NET Foundation licenses this file to you under the MIT license. | ||
| // See the LICENSE file in the project root for more information. | ||
|
|
||
| using System; | ||
| using Microsoft.Toolkit.Uwp.UI.Extensions; | ||
| using Microsoft.VisualStudio.TestTools.UnitTesting; | ||
| using Microsoft.VisualStudio.TestTools.UnitTesting.AppContainer; | ||
| using Windows.UI.Xaml; | ||
| using Windows.UI.Xaml.Controls; | ||
| using Windows.UI.Xaml.Markup; | ||
|
|
||
| namespace UnitTests.Extensions | ||
| { | ||
| [TestClass] | ||
| public class Test_EnumValuesExtension | ||
| { | ||
| [TestCategory("EnumValuesExtension")] | ||
| [UITestMethod] | ||
| public void Test_EnumValuesExtension_MarkupExtension() | ||
| { | ||
| var treeroot = XamlReader.Load(@"<Page | ||
| xmlns=""http://schemas.microsoft.com/winfx/2006/xaml/presentation"" | ||
| xmlns:x=""http://schemas.microsoft.com/winfx/2006/xaml"" | ||
| xmlns:ex=""using:Microsoft.Toolkit.Uwp.UI.Extensions"" | ||
| xmlns:local=""using:UnitTests.Extensions""> | ||
| <ListView x:Name=""Check"" ItemsSource=""{ex:EnumValues Type=local:Animal}""/> | ||
| </Page>") as FrameworkElement; | ||
|
|
||
| var list = treeroot.FindChildByName("Check") as ListView; | ||
|
|
||
| Assert.IsNotNull(list, "Could not find listview control in tree."); | ||
|
|
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| Animal[] items = list.ItemsSource as Animal[]; | ||
|
|
||
| Assert.IsNotNull(items, "The items were not created correctly"); | ||
|
|
||
| CollectionAssert.AreEqual(items, Enum.GetValues(typeof(Animal))); | ||
| } | ||
| } | ||
|
|
||
| public enum Animal | ||
| { | ||
| Cat, | ||
| Dog, | ||
| Bunny | ||
| } | ||
| } |
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