33 lines
649 B
C#
33 lines
649 B
C#
using Avalonia.Controls;
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using Avalonia.Input;
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using Avalonia.Styling;
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using System;
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namespace LibationAvalonia.Controls
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{
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public partial class WheelComboBox : ComboBox, IStyleable
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{
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Type IStyleable.StyleKey => typeof(ComboBox);
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public WheelComboBox()
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{
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InitializeComponent();
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}
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protected override void OnPointerWheelChanged(PointerWheelEventArgs e)
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{
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var dir = Math.Sign(e.Delta.Y);
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if (dir == 1 && SelectedIndex > 0)
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{
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SelectedIndex--;
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e.Handled = true;
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}
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else if (dir == -1 && SelectedIndex < ItemCount - 1)
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{
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SelectedIndex++;
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e.Handled = true;
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}
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base.OnPointerWheelChanged(e);
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}
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}
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}
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