Итак, я до сих пор не знаю, почему ползунок так застревает, но для того, чтобы продолжать двигаться вперед, я создал свой собственный ползунок.Надеюсь, этот код поможет кому-то еще.
xaml:
<UserControl
x:Name="userControl"
x:Class="controls.pSlider"
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"
mc:Ignorable="d"
d:DesignWidth="76" d:DesignHeight="400" Background="Gray" Foreground="White">
<Grid x:Name="LayoutRoot" Background="Transparent" MouseMove="LayoutRoot_MouseMove" MouseLeftButtonDown="LayoutRoot_MouseLeftButtonDown">
<Grid.RowDefinitions>
<RowDefinition Height="10"/>
<RowDefinition/>
<RowDefinition Height="10"/>
</Grid.RowDefinitions>
<Rectangle x:Name="colorBar" Margin="20,6" Width="10" Fill="{Binding Background, ElementName=userControl}" Grid.Row="1"/>
<Grid x:Name="g_container" Grid.Row="1" Margin="0,1,0,13">
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition Height="0"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Grid x:Name="g_thumb" Height="0" VerticalAlignment="Top" Grid.Row="1">
<Canvas Height="0" VerticalAlignment="Top">
<Path Data="M0,0 L1,0 L1.2,0.5 L1,1 L0,1 z" Margin="0" Stretch="Fill" UseLayoutRounding="False" Width="33" RenderTransformOrigin="0.5,0.5" StrokeThickness="0" Fill="{Binding Foreground, ElementName=userControl}" Height="12" d:LayoutOverrides="VerticalAlignment"/>
<Path Data="M0.3,0.5 L0.5,0 L1.5,0 L1.5,1 L0.5,1 z" Margin="0" Stretch="Fill" UseLayoutRounding="False" Width="33" RenderTransformOrigin="0.5,0.5" StrokeThickness="0" Fill="{Binding Foreground, ElementName=userControl}" Height="12" Canvas.Left="43" d:LayoutOverrides="VerticalAlignment"/>
</Canvas>
</Grid>
<Rectangle x:Name="r_lifter" Margin="0" Grid.Row="2" Height="188" StrokeThickness="0"/>
</Grid>
</Grid>
код:
namespace controls {
public partial class pSlider : UserControl {
public event RoutedEventHandler ValueChanged;
public static readonly DependencyProperty MaxProperty =
DependencyProperty.Register("Maximum", typeof(double), typeof(pSlider), new PropertyMetadata(100.0));
public double Maximum {
get { return (double)GetValue(MaxProperty); }
set { SetValue(MaxProperty, value); }
}
public static readonly DependencyProperty MinProperty =
DependencyProperty.Register("Minimum", typeof(double), typeof(pSlider), new PropertyMetadata(0.0));
public double Minimum {
get { return (double)GetValue(MinProperty); }
set { SetValue(MinProperty, value); }
}
public static readonly DependencyProperty ValueProperty =
DependencyProperty.Register("Value", typeof(double), typeof(pSlider), new PropertyMetadata(50.0));
public double Value {
get { return (double)GetValue(ValueProperty); }
set { SetValue(ValueProperty, value); }
}
public pSlider() {
InitializeComponent();
Loaded += new RoutedEventHandler(pSlider_Loaded);
}
void pSlider_Loaded(object sender, RoutedEventArgs e) {
if (Value > Maximum)
Value = Maximum;
else if (Value < Minimum)
Value = Minimum;
double min = 0;
double max = g_container.ActualHeight;
r_lifter.Height = Value / (Maximum - Minimum) * (max - min);
}
private Point Position;
private void LayoutRoot_MouseMove(object sender, MouseEventArgs e) {
Point newPosition = e.GetPosition((UIElement)sender);
double delta = newPosition.Y - Position.Y;
double temp = r_lifter.Height - delta;
if (temp > g_container.ActualHeight)
r_lifter.Height = g_container.ActualHeight;
else if (temp < 0)
r_lifter.Height = 0;
else
r_lifter.Height = temp;
double min = 0;
double max = g_container.ActualHeight;
Value = r_lifter.Height / (max - min) * (Maximum - Minimum);
Value = Math.Floor(Value);
RoutedEventHandler handler = ValueChanged;
if (handler != null)
handler(this, e);
Position = e.GetPosition((UIElement)sender);
}
private void LayoutRoot_MouseLeftButtonDown(object sender, MouseButtonEventArgs e) {
Position = e.GetPosition((UIElement)sender);
}
}
}