feat: bring code from Avalonia to Ursa.
This commit is contained in:
Dong Bin
38
src/Ursa/Common/ObservableHelper.cs
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38
src/Ursa/Common/ObservableHelper.cs
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@@ -0,0 +1,38 @@
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using Avalonia.Reactive;
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namespace Ursa.Common;
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internal static class ObservableHelper
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{
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public static IObservable<T> Skip<T>(this IObservable<T> source, int skipCount)
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{
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if (skipCount <= 0) throw new ArgumentException("Skip count must be bigger than zero", nameof(skipCount));
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return Create<T>(obs =>
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{
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var remaining = skipCount;
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return source.Subscribe(new AnonymousObserver<T>(
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input =>
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{
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if (remaining <= 0)
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obs.OnNext(input);
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else
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remaining--;
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}, obs.OnError, obs.OnCompleted));
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});
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}
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public static IObservable<TSource> Create<TSource>(Func<IObserver<TSource>, IDisposable> subscribe)
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{
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return new CreateWithDisposableObservable<TSource>(subscribe);
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}
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private sealed class CreateWithDisposableObservable<TSource>(Func<IObserver<TSource>, IDisposable> subscribe)
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: IObservable<TSource>
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{
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public IDisposable Subscribe(IObserver<TSource> observer)
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{
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return subscribe(observer);
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}
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}
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}
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23
src/Ursa/Common/XYFocusHelpers.cs
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23
src/Ursa/Common/XYFocusHelpers.cs
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@@ -0,0 +1,23 @@
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using Avalonia.Input;
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namespace Ursa.Common;
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internal static class XYFocusHelpers
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{
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internal static bool IsAllowedXYNavigationMode(this InputElement visual, KeyDeviceType? keyDeviceType)
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{
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return IsAllowedXYNavigationMode(XYFocus.GetNavigationModes(visual), keyDeviceType);
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}
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private static bool IsAllowedXYNavigationMode(XYFocusNavigationModes modes, KeyDeviceType? keyDeviceType)
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{
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return keyDeviceType switch
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{
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null => !modes.Equals(XYFocusNavigationModes.Disabled), // programmatic input, allow any subtree except Disabled.
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KeyDeviceType.Keyboard => modes.HasFlag(XYFocusNavigationModes.Keyboard),
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KeyDeviceType.Gamepad => modes.HasFlag(XYFocusNavigationModes.Gamepad),
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KeyDeviceType.Remote => modes.HasFlag(XYFocusNavigationModes.Remote),
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_ => throw new ArgumentOutOfRangeException(nameof(keyDeviceType), keyDeviceType, null)
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};
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}
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}
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@@ -0,0 +1,513 @@
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Threading;
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using System.Threading.Tasks;
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using Avalonia;
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using Avalonia.Controls.Primitives;
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using Avalonia.Controls.Templates;
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using Avalonia.Controls;
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using Avalonia.Data;
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using Avalonia.Metadata;
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namespace Ursa.Controls;
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public partial class MultiAutoCompleteBox
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{
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/// <summary>
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/// Defines see <see cref="TextBox.CaretIndex"/> property.
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/// </summary>
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public static readonly StyledProperty<int> CaretIndexProperty =
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TextBox.CaretIndexProperty.AddOwner<MultiAutoCompleteBox>(new(
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defaultValue: 0,
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defaultBindingMode:BindingMode.TwoWay));
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public static readonly StyledProperty<string?> WatermarkProperty =
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TextBox.WatermarkProperty.AddOwner<MultiAutoCompleteBox>();
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/// <summary>
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/// Identifies the <see cref="MinimumPrefixLength" /> property.
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/// </summary>
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/// <value>The identifier for the <see cref="MinimumPrefixLength" /> property.</value>
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public static readonly StyledProperty<int> MinimumPrefixLengthProperty =
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AvaloniaProperty.Register<MultiAutoCompleteBox, int>(
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nameof(MinimumPrefixLength), 1,
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validate: IsValidMinimumPrefixLength);
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/// <summary>
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/// Identifies the <see cref="MinimumPopulateDelay" /> property.
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/// </summary>
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/// <value>The identifier for the <see cref="MinimumPopulateDelay" /> property.</value>
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public static readonly StyledProperty<TimeSpan> MinimumPopulateDelayProperty =
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AvaloniaProperty.Register<MultiAutoCompleteBox, TimeSpan>(
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nameof(MinimumPopulateDelay),
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TimeSpan.Zero,
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validate: IsValidMinimumPopulateDelay);
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/// <summary>
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/// Identifies the <see cref="MaxDropDownHeight" /> property.
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/// </summary>
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/// <value>The identifier for the <see cref="MaxDropDownHeight" /> property.</value>
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public static readonly StyledProperty<double> MaxDropDownHeightProperty =
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AvaloniaProperty.Register<MultiAutoCompleteBox, double>(
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nameof(MaxDropDownHeight),
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double.PositiveInfinity,
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validate: IsValidMaxDropDownHeight);
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/// <summary>
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/// Identifies the <see cref="IsTextCompletionEnabled" /> property.
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/// </summary>
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/// <value>The identifier for the <see cref="IsTextCompletionEnabled" /> property.</value>
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public static readonly StyledProperty<bool> IsTextCompletionEnabledProperty =
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AvaloniaProperty.Register<MultiAutoCompleteBox, bool>(
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nameof(IsTextCompletionEnabled));
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/// <summary>
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/// Identifies the <see cref="ItemTemplate" /> property.
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/// </summary>
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/// <value>The identifier for the <see cref="ItemTemplate" /> property.</value>
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public static readonly StyledProperty<IDataTemplate> ItemTemplateProperty =
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AvaloniaProperty.Register<MultiAutoCompleteBox, IDataTemplate>(
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nameof(ItemTemplate));
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/// <summary>
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/// Identifies the <see cref="IsDropDownOpen" /> property.
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/// </summary>
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/// <value>The identifier for the <see cref="IsDropDownOpen" /> property.</value>
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public static readonly StyledProperty<bool> IsDropDownOpenProperty =
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AvaloniaProperty.Register<MultiAutoCompleteBox, bool>(
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nameof(IsDropDownOpen));
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/// <summary>
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/// Identifies the <see cref="SelectedItem" /> property.
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/// </summary>
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/// <value>The identifier the <see cref="SelectedItem" /> property.</value>
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public static readonly StyledProperty<object?> SelectedItemProperty =
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AvaloniaProperty.Register<MultiAutoCompleteBox, object?>(
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nameof(SelectedItem),
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defaultBindingMode: BindingMode.TwoWay,
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enableDataValidation: true);
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/// <summary>
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/// Identifies the <see cref="Text" /> property.
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/// </summary>
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/// <value>The identifier for the <see cref="Text" /> property.</value>
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public static readonly StyledProperty<string?> TextProperty =
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TextBlock.TextProperty.AddOwner<MultiAutoCompleteBox>(new(string.Empty,
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defaultBindingMode: BindingMode.TwoWay,
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enableDataValidation: true));
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/// <summary>
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/// Identifies the <see cref="SearchText" /> property.
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/// </summary>
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/// <value>The identifier for the <see cref="SearchText" /> property.</value>
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public static readonly DirectProperty<MultiAutoCompleteBox, string?> SearchTextProperty =
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AvaloniaProperty.RegisterDirect<MultiAutoCompleteBox, string?>(
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nameof(SearchText),
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o => o.SearchText,
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unsetValue: string.Empty);
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/// <summary>
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/// Gets the identifier for the <see cref="FilterMode" /> property.
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/// </summary>
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public static readonly StyledProperty<AutoCompleteFilterMode> FilterModeProperty =
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AvaloniaProperty.Register<MultiAutoCompleteBox, AutoCompleteFilterMode>(
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nameof(FilterMode),
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defaultValue: AutoCompleteFilterMode.StartsWith,
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validate: IsValidFilterMode);
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/// <summary>
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/// Identifies the <see cref="ItemFilter" /> property.
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/// </summary>
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/// <value>The identifier for the <see cref="ItemFilter" /> property.</value>
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public static readonly StyledProperty<AutoCompleteFilterPredicate<object?>?> ItemFilterProperty =
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AvaloniaProperty.Register<MultiAutoCompleteBox, AutoCompleteFilterPredicate<object?>?>(
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nameof(ItemFilter));
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/// <summary>
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/// Identifies the <see cref="TextFilter" /> property.
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/// </summary>
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/// <value>The identifier for the <see cref="TextFilter" /> property.</value>
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public static readonly StyledProperty<AutoCompleteFilterPredicate<string?>?> TextFilterProperty =
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AvaloniaProperty.Register<MultiAutoCompleteBox, AutoCompleteFilterPredicate<string?>?>(
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nameof(TextFilter),
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defaultValue: AutoCompleteSearch.GetFilter(AutoCompleteFilterMode.StartsWith));
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/// <summary>
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/// Identifies the <see cref="ItemSelector" /> property.
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/// </summary>
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/// <value>The identifier for the <see cref="ItemSelector" /> property.</value>
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public static readonly StyledProperty<AutoCompleteSelector<object>?> ItemSelectorProperty =
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AvaloniaProperty.Register<MultiAutoCompleteBox, AutoCompleteSelector<object>?>(
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nameof(ItemSelector));
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/// <summary>
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/// Identifies the <see cref="TextSelector" /> property.
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/// </summary>
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/// <value>The identifier for the <see cref="TextSelector" /> property.</value>
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public static readonly StyledProperty<AutoCompleteSelector<string?>?> TextSelectorProperty =
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AvaloniaProperty.Register<MultiAutoCompleteBox, AutoCompleteSelector<string?>?>(
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nameof(TextSelector));
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/// <summary>
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/// Identifies the <see cref="ItemsSource" /> property.
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/// </summary>
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/// <value>The identifier for the <see cref="ItemsSource" /> property.</value>
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public static readonly StyledProperty<IEnumerable?> ItemsSourceProperty =
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AvaloniaProperty.Register<MultiAutoCompleteBox, IEnumerable?>(
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nameof(ItemsSource));
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/// <summary>
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/// Identifies the <see cref="AsyncPopulator" /> property.
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/// </summary>
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/// <value>The identifier for the <see cref="AsyncPopulator" /> property.</value>
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public static readonly StyledProperty<Func<string?, CancellationToken, Task<IEnumerable<object>>>?> AsyncPopulatorProperty =
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AvaloniaProperty.Register<MultiAutoCompleteBox, Func<string?, CancellationToken, Task<IEnumerable<object>>>?>(
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nameof(AsyncPopulator));
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/// <summary>
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/// Defines the <see cref="MaxLength"/> property
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/// </summary>
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public static readonly StyledProperty<int> MaxLengthProperty =
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TextBox.MaxLengthProperty.AddOwner<MultiAutoCompleteBox>();
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/// <summary>
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/// Defines the <see cref="InnerLeftContent"/> property
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/// </summary>
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public static readonly StyledProperty<object?> InnerLeftContentProperty =
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TextBox.InnerLeftContentProperty.AddOwner<MultiAutoCompleteBox>();
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/// <summary>
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/// Defines the <see cref="InnerRightContent"/> property
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/// </summary>
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public static readonly StyledProperty<object?> InnerRightContentProperty =
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TextBox.InnerRightContentProperty.AddOwner<MultiAutoCompleteBox>();
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/// <summary>
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/// Gets or sets the caret index
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/// </summary>
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public int CaretIndex
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{
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get => GetValue(CaretIndexProperty);
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set => SetValue(CaretIndexProperty, value);
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}
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/// <summary>
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/// Gets or sets the minimum number of characters required to be entered
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/// in the text box before the <see cref="AutoCompleteBox" /> displays possible matches.
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/// </summary>
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/// <value>
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/// The minimum number of characters to be entered in the text box
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/// before the <see cref="AutoCompleteBox" />
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/// displays possible matches. The default is 1.
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/// </value>
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/// <remarks>
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/// If you set MinimumPrefixLength to -1, the AutoCompleteBox will
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/// not provide possible matches. There is no maximum value, but
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/// setting MinimumPrefixLength to value that is too large will
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/// prevent the AutoCompleteBox from providing possible matches as well.
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/// </remarks>
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public int MinimumPrefixLength
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{
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get => GetValue(MinimumPrefixLengthProperty);
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set => SetValue(MinimumPrefixLengthProperty, value);
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}
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/// <summary>
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/// Gets or sets a value indicating whether the first possible match
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/// found during the filtering process will be displayed automatically
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/// in the text box.
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/// </summary>
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/// <value>
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/// True if the first possible match found will be displayed
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/// automatically in the text box; otherwise, false. The default is
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/// false.
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/// </value>
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public bool IsTextCompletionEnabled
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{
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get => GetValue(IsTextCompletionEnabledProperty);
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set => SetValue(IsTextCompletionEnabledProperty, value);
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}
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/// <summary>
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/// Gets or sets the <see cref="T:Avalonia.DataTemplate" /> used
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/// to display each item in the drop-down portion of the control.
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/// </summary>
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/// <value>The <see cref="T:Avalonia.DataTemplate" /> used to
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/// display each item in the drop-down. The default is null.</value>
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/// <remarks>
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/// You use the ItemTemplate property to specify the visualization
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/// of the data objects in the drop-down portion of the AutoCompleteBox
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/// control. If your AutoCompleteBox is bound to a collection and you
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/// do not provide specific display instructions by using a
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/// DataTemplate, the resulting UI of each item is a string
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/// representation of each object in the underlying collection.
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/// </remarks>
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public IDataTemplate ItemTemplate
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{
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get => GetValue(ItemTemplateProperty);
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set => SetValue(ItemTemplateProperty, value);
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}
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/// <summary>
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/// Gets or sets the minimum delay, after text is typed
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/// in the text box before the
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/// <see cref="AutoCompleteBox" /> control
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/// populates the list of possible matches in the drop-down.
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/// </summary>
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/// <value>The minimum delay, after text is typed in
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/// the text box, but before the
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/// <see cref="AutoCompleteBox" /> populates
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/// the list of possible matches in the drop-down. The default is 0.</value>
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public TimeSpan MinimumPopulateDelay
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{
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get => GetValue(MinimumPopulateDelayProperty);
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set => SetValue(MinimumPopulateDelayProperty, value);
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}
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/// <summary>
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/// Gets or sets the maximum height of the drop-down portion of the
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/// <see cref="AutoCompleteBox" /> control.
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/// </summary>
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/// <value>The maximum height of the drop-down portion of the
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/// <see cref="AutoCompleteBox" /> control.
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/// The default is <see cref="F:System.Double.PositiveInfinity" />.</value>
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/// <exception cref="T:System.ArgumentException">The specified value is less than 0.</exception>
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public double MaxDropDownHeight
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{
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get => GetValue(MaxDropDownHeightProperty);
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set => SetValue(MaxDropDownHeightProperty, value);
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}
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/// <summary>
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/// Gets or sets a value indicating whether the drop-down portion of
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/// the control is open.
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/// </summary>
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/// <value>
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/// True if the drop-down is open; otherwise, false. The default is
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/// false.
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/// </value>
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public bool IsDropDownOpen
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{
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get => GetValue(IsDropDownOpenProperty);
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set => SetValue(IsDropDownOpenProperty, value);
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}
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/// <summary>
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/// Gets or sets the <see cref="T:Avalonia.Data.Binding" /> that
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/// is used to get the values for display in the text portion of
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/// the <see cref="AutoCompleteBox" />
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/// control.
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/// </summary>
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/// <value>The <see cref="T:Avalonia.Data.IBinding" /> object used
|
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/// when binding to a collection property.</value>
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[AssignBinding]
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[InheritDataTypeFromItems(nameof(ItemsSource))]
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public IBinding? ValueMemberBinding
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{
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get => _valueBindingEvaluator?.ValueBinding;
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set
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{
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if (ValueMemberBinding != value)
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{
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_valueBindingEvaluator = new BindingEvaluator<string>(value);
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OnValueMemberBindingChanged(value);
|
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}
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}
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}
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/// <summary>
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/// Gets or sets the selected item in the drop-down.
|
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/// </summary>
|
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/// <value>The selected item in the drop-down.</value>
|
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/// <remarks>
|
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/// If the IsTextCompletionEnabled property is true and text typed by
|
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/// the user matches an item in the ItemsSource collection, which is
|
||||
/// then displayed in the text box, the SelectedItem property will be
|
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/// a null reference.
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/// </remarks>
|
||||
public object? SelectedItem
|
||||
{
|
||||
get => GetValue(SelectedItemProperty);
|
||||
set => SetValue(SelectedItemProperty, value);
|
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}
|
||||
|
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/// <summary>
|
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/// Gets or sets the text in the text box portion of the
|
||||
/// <see cref="AutoCompleteBox" /> control.
|
||||
/// </summary>
|
||||
/// <value>The text in the text box portion of the
|
||||
/// <see cref="AutoCompleteBox" /> control.</value>
|
||||
public string? Text
|
||||
{
|
||||
get => GetValue(TextProperty);
|
||||
set => SetValue(TextProperty, value);
|
||||
}
|
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|
||||
/// <summary>
|
||||
/// Gets the text that is used to filter items in the
|
||||
/// <see cref="ItemsSource" /> item collection.
|
||||
/// </summary>
|
||||
/// <value>The text that is used to filter items in the
|
||||
/// <see cref="ItemsSource" /> item collection.</value>
|
||||
/// <remarks>
|
||||
/// The SearchText value is typically the same as the
|
||||
/// Text property, but is set after the TextChanged event occurs
|
||||
/// and before the Populating event.
|
||||
/// </remarks>
|
||||
public string? SearchText
|
||||
{
|
||||
get => _searchText;
|
||||
private set
|
||||
{
|
||||
try
|
||||
{
|
||||
_allowWrite = true;
|
||||
SetAndRaise(SearchTextProperty, ref _searchText, value);
|
||||
}
|
||||
finally
|
||||
{
|
||||
_allowWrite = false;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets or sets how the text in the text box is used to filter items
|
||||
/// specified by the <see cref="ItemsSource" />
|
||||
/// property for display in the drop-down.
|
||||
/// </summary>
|
||||
/// <value>One of the <see cref="AutoCompleteFilterMode" />
|
||||
/// values The default is <see cref="AutoCompleteFilterMode.StartsWith" />.</value>
|
||||
/// <exception cref="T:System.ArgumentException">The specified value is not a valid
|
||||
/// <see cref="AutoCompleteFilterMode" />.</exception>
|
||||
/// <remarks>
|
||||
/// Use the FilterMode property to specify how possible matches are
|
||||
/// filtered. For example, possible matches can be filtered in a
|
||||
/// predefined or custom way. The search mode is automatically set to
|
||||
/// Custom if you set the ItemFilter property.
|
||||
/// </remarks>
|
||||
public AutoCompleteFilterMode FilterMode
|
||||
{
|
||||
get => GetValue(FilterModeProperty);
|
||||
set => SetValue(FilterModeProperty, value);
|
||||
}
|
||||
|
||||
public string? Watermark
|
||||
{
|
||||
get => GetValue(WatermarkProperty);
|
||||
set => SetValue(WatermarkProperty, value);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets or sets the custom method that uses user-entered text to filter
|
||||
/// the items specified by the <see cref="ItemsSource" />
|
||||
/// property for display in the drop-down.
|
||||
/// </summary>
|
||||
/// <value>The custom method that uses the user-entered text to filter
|
||||
/// the items specified by the <see cref="ItemsSource" />
|
||||
/// property. The default is null.</value>
|
||||
/// <remarks>
|
||||
/// The filter mode is automatically set to Custom if you set the
|
||||
/// ItemFilter property.
|
||||
/// </remarks>
|
||||
public AutoCompleteFilterPredicate<object?>? ItemFilter
|
||||
{
|
||||
get => GetValue(ItemFilterProperty);
|
||||
set => SetValue(ItemFilterProperty, value);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets or sets the custom method that uses the user-entered text to
|
||||
/// filter items specified by the <see cref="ItemsSource" />
|
||||
/// property in a text-based way for display in the drop-down.
|
||||
/// </summary>
|
||||
/// <value>The custom method that uses the user-entered text to filter
|
||||
/// items specified by the <see cref="ItemsSource" />
|
||||
/// property in a text-based way for display in the drop-down.</value>
|
||||
/// <remarks>
|
||||
/// The search mode is automatically set to Custom if you set the
|
||||
/// TextFilter property.
|
||||
/// </remarks>
|
||||
public AutoCompleteFilterPredicate<string?>? TextFilter
|
||||
{
|
||||
get => GetValue(TextFilterProperty);
|
||||
set => SetValue(TextFilterProperty, value);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets or sets the custom method that combines the user-entered
|
||||
/// text and one of the items specified by the <see cref="ItemsSource" />.
|
||||
/// </summary>
|
||||
/// <value>
|
||||
/// The custom method that combines the user-entered
|
||||
/// text and one of the items specified by the <see cref="ItemsSource" />.
|
||||
/// </value>
|
||||
public AutoCompleteSelector<object>? ItemSelector
|
||||
{
|
||||
get => GetValue(ItemSelectorProperty);
|
||||
set => SetValue(ItemSelectorProperty, value);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets or sets the custom method that combines the user-entered
|
||||
/// text and one of the items specified by the
|
||||
/// <see cref="ItemsSource" /> in a text-based way.
|
||||
/// </summary>
|
||||
/// <value>
|
||||
/// The custom method that combines the user-entered
|
||||
/// text and one of the items specified by the <see cref="ItemsSource" />
|
||||
/// in a text-based way.
|
||||
/// </value>
|
||||
public AutoCompleteSelector<string?>? TextSelector
|
||||
{
|
||||
get => GetValue(TextSelectorProperty);
|
||||
set => SetValue(TextSelectorProperty, value);
|
||||
}
|
||||
|
||||
public Func<string?, CancellationToken, Task<IEnumerable<object>>>? AsyncPopulator
|
||||
{
|
||||
get => GetValue(AsyncPopulatorProperty);
|
||||
set => SetValue(AsyncPopulatorProperty, value);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets or sets a collection that is used to generate the items for the
|
||||
/// drop-down portion of the <see cref="AutoCompleteBox" /> control.
|
||||
/// </summary>
|
||||
/// <value>The collection that is used to generate the items of the
|
||||
/// drop-down portion of the <see cref="AutoCompleteBox" /> control.</value>
|
||||
public IEnumerable? ItemsSource
|
||||
{
|
||||
get => GetValue(ItemsSourceProperty);
|
||||
set => SetValue(ItemsSourceProperty, value);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets or sets the maximum number of characters that the <see cref="AutoCompleteBox"/> can accept.
|
||||
/// This constraint only applies for manually entered (user-inputted) text.
|
||||
/// </summary>
|
||||
public int MaxLength
|
||||
{
|
||||
get => GetValue(MaxLengthProperty);
|
||||
set => SetValue(MaxLengthProperty, value);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets or sets custom content that is positioned on the left side of the text layout box
|
||||
/// </summary>
|
||||
public object? InnerLeftContent
|
||||
{
|
||||
get => GetValue(InnerLeftContentProperty);
|
||||
set => SetValue(InnerLeftContentProperty, value);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets or sets custom content that is positioned on the right side of the text layout box
|
||||
/// </summary>
|
||||
public object? InnerRightContent
|
||||
{
|
||||
get => GetValue(InnerRightContentProperty);
|
||||
set => SetValue(InnerRightContentProperty, value);
|
||||
}
|
||||
}
|
||||
1970
src/Ursa/Controls/AutoCompleteBox/MultiAutoCompleteBox.cs
Normal file
1970
src/Ursa/Controls/AutoCompleteBox/MultiAutoCompleteBox.cs
Normal file
File diff suppressed because it is too large
Load Diff
Reference in New Issue
Block a user