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[英]How to set WPF border.Brush to foreground property of other controls like labels?
[英]Set Border.Brush property according to Mouse State and Position
我正在嘗試根據鼠標進入、離開或關閉我的 UserControl 來更改我的 UserControl 的 Border.BorderBrush 屬性。 我已經嘗試在后面的代碼中明確地執行此操作,但是無論何時更改 Border.BorderBrush 屬性,邊框都會消失。
我嘗試了一系列可能的解決方案,但無濟於事。 從我當前的代碼庫開始,我正在嘗試使用樣式和觸發器來為我管理它。 我的問題是 IsMouseDown 沒有屬性,除非您正在處理 Button(至少這是我從閱讀中收集到的),所以我為此定義了一個屬性。
就在我認為它會起作用的時候,邊框找不到我在 UserControl.Resources 中定義的樣式。
我已經用盡了我所知道的一切,任何幫助將不勝感激。
XAML:
<UserControl x:Class="OSK.Resources.Themes.Default.Key"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:local="clr-namespace:OSK.Resources.Themes.Default"
mc:Ignorable="d"
x:Name="OSKuwuDefaultKey"
d:DesignHeight="48" d:DesignWidth="48">
<UserControl.Style>
<Style x:Name="KeyStyle">
<Style.Triggers>
<Trigger Property="Border.IsMouseOver" Value="true">
<Setter Property="Border.BorderBrush" Value="{Binding Path=BrushHover, RelativeSource={RelativeSource Self}}" />
</Trigger>
<Trigger Property="Border.IsMouseOver" Value="false">
<Setter Property="Border.BorderBrush" Value="{Binding Path=BrushNormal, RelativeSource={RelativeSource Self}}" />
</Trigger>
<Trigger Property="local:Key.IsMouseDown" Value="true">
<Setter Property="Border.BorderBrush" Value="{Binding Path=BrushDown, RelativeSource={RelativeSource Self}}" />
</Trigger>
</Style.Triggers>
</Style>
</UserControl.Style>
<Border x:Name="key" Background="Transparent" Width="{Binding Path=Width, ElementName=OSKuwuDefaultKey}" Height="{Binding Path=Height, ElementName=OSKuwuDefaultKey}" BorderBrush="{Binding BorderBrush, ElementName=OSKuwuDefaultKey}" CornerRadius="{Binding Path=CornerRadius, ElementName=OSKuwuDefaultKey}" BorderThickness="{Binding Path=OutlineThickness, ElementName=OSKuwuDefaultKey}" MouseEnter="Key_MouseEnter" MouseLeave="Key_MouseLeave" MouseDown="Key_MouseDown" MouseUp="Key_MouseUp">
<Canvas>
<Label Content="{Binding SuperText, ElementName=OSKuwuDefaultKey}" Canvas.Top="6" Canvas.Left="8" />
<Label Content="{Binding SubText, ElementName=OSKuwuDefaultKey}" Canvas.Top="20" Canvas.Right="4" />
</Canvas>
</Border>
代碼隱藏:
using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Media;
namespace OSK.Resources.Themes.Default
{
/// <summary>
/// Interaction logic for Key.xaml
/// </summary>
public partial class Key : UserControl
{
public static readonly DependencyProperty SuperTextProperty = DependencyProperty.Register("SuperText", typeof(string), typeof(Key), new FrameworkPropertyMetadata("", FrameworkPropertyMetadataOptions.AffectsRender));
public string SuperText
{
get
{
return (string)GetValue(SuperTextProperty);
}
set
{
SetValue(SuperTextProperty, value);
}
}
public static readonly DependencyProperty SubTextProperty = DependencyProperty.Register("SubText", typeof(string), typeof(Key), new FrameworkPropertyMetadata("", FrameworkPropertyMetadataOptions.AffectsRender));
public string SubText
{
get
{
return (string)GetValue(SubTextProperty);
}
set
{
SetValue(SubTextProperty, value);
}
}
public static readonly DependencyProperty BrushNormalProperty = DependencyProperty.Register("BrushNormal", typeof(Brush), typeof(Key), new FrameworkPropertyMetadata(Brushes.LightSlateGray));
public Brush BrushNormal
{
get
{
return (Brush)GetValue(BrushNormalProperty);
}
set
{
SetValue(BrushNormalProperty, value);
}
}
public static readonly DependencyProperty BrushHoverProperty = DependencyProperty.Register("BrushHover", typeof(Brush), typeof(Key), new FrameworkPropertyMetadata(Brushes.LightSteelBlue));
public Brush BrushHover
{
get
{
return (Brush)GetValue(BrushHoverProperty);
}
set
{
SetValue(BrushHoverProperty, value);
}
}
public static readonly DependencyProperty BrushDownProperty = DependencyProperty.Register("BrushDown", typeof(Brush), typeof(Key), new FrameworkPropertyMetadata(Brushes.SlateGray));
public Brush BrushDown
{
get
{
return (Brush)GetValue(BrushDownProperty);
}
set
{
SetValue(BrushDownProperty, value);
}
}
public static readonly DependencyProperty CornerRadiusProperty = DependencyProperty.Register("CornerRadius", typeof(int), typeof(Key), new FrameworkPropertyMetadata(4, FrameworkPropertyMetadataOptions.AffectsRender));
public int CornerRadius
{
get
{
return (int)GetValue(CornerRadiusProperty);
}
set
{
SetValue(CornerRadiusProperty, value);
}
}
public static readonly DependencyProperty OutlineThicknessProperty = DependencyProperty.Register("OutlineThickness", typeof(Thickness), typeof(Key), new FrameworkPropertyMetadata(new Thickness(1), FrameworkPropertyMetadataOptions.AffectsRender));
public Thickness OutlineThickness
{
get
{
return (Thickness)GetValue(OutlineThicknessProperty);
}
set
{
SetValue(OutlineThicknessProperty, value);
}
}
public static DependencyProperty IsMouseDownProperty = DependencyProperty.RegisterAttached("IsMouseDown", typeof(bool), typeof(Key), new FrameworkPropertyMetadata(default(bool)));
public bool IsMouseDown
{
get
{
return (bool)GetValue(IsMouseDownProperty);
}
set
{
SetValue(IsMouseDownProperty, value);
}
}
public Key()
{
InitializeComponent();
}
private void Key_MouseEnter(object sender, MouseEventArgs e)
{
//this.SetValue(Key.BorderBrushProperty, BrushNormal);
//Console.WriteLine(GetValue(Key.BorderBrushProperty));
}
private void Key_MouseLeave(object sender, MouseEventArgs e)
{
//this.SetValue(Key.BorderBrushProperty, BrushHover);
}
private void Key_MouseDown(object sender, MouseButtonEventArgs e)
{
//this.SetValue(Key.BorderBrushProperty, BrushDown);
this.SetValue(Key.IsMouseDownProperty, true);
}
private void Key_MouseUp(object sender, MouseButtonEventArgs e)
{
this.SetValue(Key.IsMouseDownProperty, false);
}
}
}
我讓它工作了。 原始帖子具有最終的工作代碼。
布局應該是這樣的,沒有明確設置邊框的大小:
<Border x:Name="key" Background="Transparent"
BorderBrush="{Binding BorderBrush, ElementName=OSKuwuDefaultKey}"
CornerRadius="{Binding CornerRadius, ElementName=OSKuwuDefaultKey}"
BorderThickness="{Binding OutlineThickness, ElementName=OSKuwuDefaultKey}"
MouseEnter="Key_MouseEnter"
MouseLeave="Key_MouseLeave"
MouseDown="Key_MouseDown"
MouseUp="Key_MouseUp">
<Canvas>
...
</Canvas>
</Border>
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