XAML设计器错误:无法找到自定义控件的资源

aiqt4smr  于 2023-11-14  发布在  其他
关注(0)|答案(1)|浏览(153)

我已经创建了一个自定义控件-一个切换按钮,并将其添加到当前项目。在执行此操作时,还创建了Themes/Generic.xaml文件,我更新了该文件以引用控件的资源字典。运行时一切正常,但当我将切换按钮添加到控件时,我得到错误Cannot locate resource 'resources/customcontrols/togglebuttonresource.xaml'.
我已经将切换按钮的资源字典添加到Control.Resources中,但这并不能消 debugging 误。我尝试添加Generic.xaml字典,但这也没有什么作用。错误仍然发生,切换按钮不会显示在设计器中。

我的控制

<Controls:MetroContentControl
             x:Class="PATestGUI.AHPA.PAStatusAndControl.Views.PAStatusAndControlView"
             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:Controls="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro"
             xmlns:cal="http://www.caliburnproject.org" 
             xmlns:cc="clr-namespace:PATestGUI.Resources.CustomControls"
             xmlns:resources="clr-namespace:PATestGUI.Resources"
             mc:Ignorable="d" HorizontalAlignment="Center" VerticalAlignment="Top" HorizontalContentAlignment="Center" VerticalContentAlignment="Top" FontFamily="Calibri" BorderThickness="1">
    <Control.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="pack://application:,,,/Themes/Generic.xaml" />
            </ResourceDictionary.MergedDictionaries>
            <Style .../> <!-- other styles here -->
       <ResourceDictionary>
    </Control.Resources>
    <Grid>
        <cc:ToggleButtonOnOff />
    </Grid

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错误

x1c 0d1x的数据

我如何摆脱这个设计器错误,使我的切换按钮显示在设计器上?
编辑:

这是我的项目结构。所有内容都在一个项目中。ToggleButtonOnOff在PAStatusAndControlView和Generic. xaml中都被引用。



Generic.xaml

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <ResourceDictionary.MergedDictionaries>
        <ResourceDictionary Source="pack://application:,,,/Resources/CustomControls/ToggleButtonResource.xaml" />
    </ResourceDictionary.MergedDictionaries>
</ResourceDictionary>

编辑2

ToggleButtonOnOff.cs

public class ToggleButtonOnOff : ToggleButton
{
    static CornerRadius _defaultCornerRadius = new CornerRadius(12.0);
    static Brush _defaultOnBrush = Brushes.Green;
    static Brush _defaultOffBrush = Brushes.Red;

    public CornerRadius CornerRadius
    {
        get { return (CornerRadius)GetValue(CornerRadiusProperty); }
        set { SetValue(CornerRadiusProperty, value); }
    }
    public static readonly DependencyProperty CornerRadiusProperty =
        DependencyProperty.Register(nameof(CornerRadius), typeof(CornerRadius), typeof(ToggleButtonOnOff), new PropertyMetadata(_defaultCornerRadius));

    public Brush ColorOn
    {
        get { return (Brush)GetValue(ColorOnProperty); }
        set { SetValue(ColorOnProperty, value); }
    }
    public static readonly DependencyProperty ColorOnProperty =
        DependencyProperty.Register(nameof(ColorOn), typeof(Brush), typeof(ToggleButtonOnOff), new PropertyMetadata(_defaultOnBrush));

    public Brush ColorOff
    {
        get { return (Brush)GetValue(ColorOffProperty); }
        set { SetValue(ColorOffProperty, value); }
    }
    public static readonly DependencyProperty ColorOffProperty =
        DependencyProperty.Register(nameof(ColorOff), typeof(Brush), typeof(ToggleButtonOnOff), new PropertyMetadata(_defaultOffBrush));

    public double SwitchWidth
    {
        get { return (double)GetValue(SwitchWidthProperty); }
        set { SetValue(SwitchWidthProperty, value); }
    }
    public static readonly DependencyProperty SwitchWidthProperty =
        DependencyProperty.Register(nameof(SwitchWidth), typeof(double), typeof(ToggleButtonOnOff), new PropertyMetadata(10.0));

    static ToggleButtonOnOff()
    {
        DefaultStyleKeyProperty.OverrideMetadata(typeof(ToggleButtonOnOff), new FrameworkPropertyMetadata(typeof(ToggleButtonOnOff)));
    }

    public override void OnApplyTemplate()
    {
        base.OnApplyTemplate();
    }

    public ToggleButtonOnOff() { }
}


ToggleButtonResource.xaml:

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:local="clr-namespace:PATestGUI.Resources.CustomControls">
    
    <LinearGradientBrush x:Key="ToggleSwitch" StartPoint="0,0" EndPoint="0,1">
        <GradientStop Color="White" Offset="0" />
        <GradientStop Color="LightGray" Offset="1" />
    </LinearGradientBrush>

    <Style x:Key="ToggleBtnBase" TargetType="{x:Type Border}">
        <Setter Property="Height" Value="{Binding Height, RelativeSource={RelativeSource TemplatedParent}}" />
        <Setter Property="Width" Value="{Binding Width, RelativeSource={RelativeSource TemplatedParent}}" />
        <Setter Property="CornerRadius" Value="{Binding CornerRadius, RelativeSource={RelativeSource TemplatedParent}}" />
        <Setter Property="BorderThickness" Value="{Binding BordderThickness, RelativeSource={RelativeSource TemplatedParent}}" />
        <Setter Property="BorderBrush" Value="{Binding BorderBrush, RelativeSource={RelativeSource TemplatedParent}}" />
        <Style.Triggers>
            <DataTrigger Binding="{Binding IsChecked, RelativeSource={RelativeSource TemplatedParent}}" Value="True">
                <Setter Property="Background" Value="{Binding ColorOn, RelativeSource={RelativeSource TemplatedParent}}" />
            </DataTrigger>
            <DataTrigger Binding="{Binding IsChecked, RelativeSource={RelativeSource TemplatedParent}}" Value="False">
                <Setter Property="Background" Value="{Binding ColorOff, RelativeSource={RelativeSource TemplatedParent}}" />
            </DataTrigger>
        </Style.Triggers>
    </Style>

    <Style x:Key="ToggleBtnSwitch" TargetType="{x:Type Border}">
        <Setter Property="CornerRadius" Value="{Binding CornerRadius, RelativeSource={RelativeSource TemplatedParent}}" />
        <Setter Property="BorderBrush" Value="{Binding BorderBrush, RelativeSource={RelativeSource TemplatedParent}}" />
        <Setter Property="Background" Value="{StaticResource ToggleSwitch}" />
        <Setter Property="HorizontalAlignment" Value="Left" />
        <Style.Triggers>
            <DataTrigger Binding="{Binding IsChecked, RelativeSource={RelativeSource TemplatedParent}}" Value="True">
                <Setter Property="HorizontalAlignment" Value="Right" />
            </DataTrigger>
            <DataTrigger Binding="{Binding IsChecked, RelativeSource={RelativeSource TemplatedParent}}" Value="False">
                <Setter Property="HorizontalAlignment" Value="Left" />
            </DataTrigger>
        </Style.Triggers>
    </Style>

    <Style TargetType="{x:Type local:ToggleButtonOnOff}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type local:ToggleButtonOnOff}">
                    <Border Style="{StaticResource ToggleBtnBase}">
                        <Grid>
                            <!--SWITCH-->
                            <Border Style="{StaticResource ToggleBtnSwitch}" Height="{TemplateBinding SwitchWidth}" Width="{TemplateBinding SwitchWidth}" BorderThickness="1" VerticalAlignment="Center"  />
                        </Grid>
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>

gkl3eglg

gkl3eglg1#

只需将ToggleButtonResource.xaml的内容直接移动到Generic.xaml,而不是将其添加为合并字典,然后设计器错误就会消失。
也没有必要将包含这些资源的合并字典添加到PAStatusAndControlView.Resources

Generic.xaml

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:local="clr-namespace:PATestGUI.Resources.CustomControls">
    
    <LinearGradientBrush x:Key="ToggleSwitch" StartPoint="0,0" EndPoint="0,1">
        <GradientStop Color="White" Offset="0" />
        <GradientStop Color="LightGray" Offset="1" />
    </LinearGradientBrush>

    <Style x:Key="ToggleBtnBase" TargetType="{x:Type Border}">
        <Setter Property="Height" Value="{Binding Height, RelativeSource={RelativeSource TemplatedParent}}" />
        <Setter Property="Width" Value="{Binding Width, RelativeSource={RelativeSource TemplatedParent}}" />
        <Setter Property="CornerRadius" Value="{Binding CornerRadius, RelativeSource={RelativeSource TemplatedParent}}" />
        <Setter Property="BorderThickness" Value="{Binding BordderThickness, RelativeSource={RelativeSource TemplatedParent}}" />
        <Setter Property="BorderBrush" Value="{Binding BorderBrush, RelativeSource={RelativeSource TemplatedParent}}" />
        <Style.Triggers>
            <DataTrigger Binding="{Binding IsChecked, RelativeSource={RelativeSource TemplatedParent}}" Value="True">
                <Setter Property="Background" Value="{Binding ColorOn, RelativeSource={RelativeSource TemplatedParent}}" />
            </DataTrigger>
            <DataTrigger Binding="{Binding IsChecked, RelativeSource={RelativeSource TemplatedParent}}" Value="False">
                <Setter Property="Background" Value="{Binding ColorOff, RelativeSource={RelativeSource TemplatedParent}}" />
            </DataTrigger>
        </Style.Triggers>
    </Style>

    <Style x:Key="ToggleBtnSwitch" TargetType="{x:Type Border}">
        <Setter Property="CornerRadius" Value="{Binding CornerRadius, RelativeSource={RelativeSource TemplatedParent}}" />
        <Setter Property="BorderBrush" Value="{Binding BorderBrush, RelativeSource={RelativeSource TemplatedParent}}" />
        <Setter Property="Background" Value="{StaticResource ToggleSwitch}" />
        <Setter Property="HorizontalAlignment" Value="Left" />
        <Style.Triggers>
            <DataTrigger Binding="{Binding IsChecked, RelativeSource={RelativeSource TemplatedParent}}" Value="True">
                <Setter Property="HorizontalAlignment" Value="Right" />
            </DataTrigger>
            <DataTrigger Binding="{Binding IsChecked, RelativeSource={RelativeSource TemplatedParent}}" Value="False">
                <Setter Property="HorizontalAlignment" Value="Left" />
            </DataTrigger>
        </Style.Triggers>
    </Style>

    <Style TargetType="{x:Type local:ToggleButtonOnOff}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type local:ToggleButtonOnOff}">
                    <Border Style="{StaticResource ToggleBtnBase}">
                        <Grid>
                            <!--SWITCH-->
                            <Border Style="{StaticResource ToggleBtnSwitch}" Height="{TemplateBinding SwitchWidth}" Width="{TemplateBinding SwitchWidth}" BorderThickness="1" VerticalAlignment="Center"  />
                        </Grid>
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>

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