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Merge pull request #4006 from timunie/feature/MultiSelectionComboBox
Implement a MultiSelectionComboBox
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src/MahApps.Metro.Samples/MahApps.Metro.Demo/ExampleViews/MultiSelectionComboBoxExample.xaml
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...hApps.Metro.Samples/MahApps.Metro.Demo/ExampleViews/MultiSelectionComboBoxExample.xaml.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,52 @@ | ||
| // 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 MahApps.Metro.Controls; | ||
| using MahApps.Metro.Controls.Dialogs; | ||
| using System.Diagnostics; | ||
| using System.Windows.Controls; | ||
|
|
||
| namespace MetroDemo.ExampleViews | ||
| { | ||
| /// <summary> | ||
| /// Interaction logic for MultiSelectionComboBoxExample.xaml | ||
| /// </summary> | ||
| public partial class MultiSelectionComboBoxExample : UserControl | ||
| { | ||
| public MultiSelectionComboBoxExample() | ||
| { | ||
| this.InitializeComponent(); | ||
| } | ||
|
|
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| private void Mscb_Example_AddingItem(object? sender, AddingItemEventArgs args) | ||
| { | ||
| // We don't want to get double entries so let`s check if we already have one. | ||
| args.Accepted = args.TargetList is not null && !args.TargetList.Contains(args.ParsedObject); | ||
| } | ||
|
|
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| private async void Mscb_Example_AddedItem(object? sender, AddedItemEventArgs args) | ||
| { | ||
| var window = this.TryFindParent<MetroWindow>(); | ||
| if (window is null) | ||
| { | ||
| return; | ||
| } | ||
|
|
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| await window.ShowMessageAsync("Added Item", $"Successfully added \"{args.AddedItem}\" to your Items-Collection"); | ||
| } | ||
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| private void mscb_Example_SelectionChanged(object sender, SelectionChangedEventArgs e) | ||
| { | ||
| foreach (var item in e.AddedItems) | ||
| { | ||
| Debug.WriteLine($"MultiSelectionComboBox-Example: Selected item \"{item}\""); | ||
| } | ||
|
|
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| foreach (var item in e.RemovedItems) | ||
| { | ||
| Debug.WriteLine($"MultiSelectionComboBox-Example: Unselected item \"{item}\""); | ||
| } | ||
| } | ||
| } | ||
| } |
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55 changes: 55 additions & 0 deletions
55
src/MahApps.Metro.Samples/MahApps.Metro.Demo/Models/ObjectParser.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| // 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 MahApps.Metro.Controls; | ||
| using MahApps.Metro.Controls.Dialogs; | ||
| using System; | ||
| using System.Globalization; | ||
|
|
||
| namespace MetroDemo.Models | ||
| { | ||
| public class ObjectParser : IParseStringToObject | ||
| { | ||
| private readonly MainWindowViewModel _mainWindowViewModel; | ||
| private readonly IDialogCoordinator _dialogCoordinator; | ||
|
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| public ObjectParser(MainWindowViewModel mainWindowViewModel, IDialogCoordinator dialogCoordinator) | ||
| { | ||
| this._mainWindowViewModel = mainWindowViewModel; | ||
| this._dialogCoordinator = dialogCoordinator; | ||
| } | ||
|
|
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| /// <inheritdoc /> | ||
| public bool TryCreateObjectFromString(string? input, | ||
| out object? result, | ||
| CultureInfo? culture = null, | ||
| string? stringFormat = null, | ||
| Type? elementType = null) | ||
| { | ||
| if (string.IsNullOrWhiteSpace(input)) | ||
| { | ||
| result = null; | ||
| return false; | ||
| } | ||
|
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| MetroDialogSettings dialogSettings = new MetroDialogSettings | ||
| { | ||
| AffirmativeButtonText = "Yes", | ||
| NegativeButtonText = "No", | ||
| DefaultButtonFocus = MessageDialogResult.Affirmative | ||
| }; | ||
|
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| if (this._dialogCoordinator.ShowModalMessageExternal(this._mainWindowViewModel, "Add Animal", $"Do you want to add \"{input}\" to the animals list?", MessageDialogStyle.AffirmativeAndNegative, dialogSettings) == MessageDialogResult.Affirmative) | ||
| { | ||
| result = input!.Trim(); | ||
| return true; | ||
| } | ||
| else | ||
| { | ||
| result = null; | ||
| return false; | ||
| } | ||
| } | ||
| } | ||
| } |
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