System.Windows.StaticResourceExtension 无法应用属性

Question

可能是绑定进程路径有问题。我不知道我是一个 stripling，如果有任何建议，我将不胜感激 :) 当我从 WPControls.dll 添加此代码 ColorConverter="{StaticResource ColorConverter}" 到我的日历控件时，我遇到了大问题 ColorConverter.cs 是一个 class，其任务是为选定的日期着色。当我排除 ColorConverter="{StaticResource ColorConverter}" 日历工作得很好...重新启动 VS2013 并重建不起作用

这是我的主页

<phone:PhoneApplicationPage
    x:Class="Ap_1.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
    xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    d:DataContext="{d:DesignData SampleData/MainViewModelSampleData.xaml}"
    FontFamily="{StaticResource PhoneFontFamilyNormal}"
    FontSize="{StaticResource PhoneFontSizeNormal}"
    Foreground="{StaticResource PhoneForegroundBrush}"
    SupportedOrientations="Portrait"  Orientation="Portrait"
    shell:SystemTray.IsVisible="False"

    xmlns:wpControls="clr-namespace:WPControls;assembly=WPControls"
    xmlns:local="clr-namespace:Ap_1" 
    Loaded="PhoneApplicationPage_Loaded" >

    <phone:PhoneApplicationPage.Resources>
        <local:ColorConverter x:Key="ColorConverter"/>
    </phone:PhoneApplicationPage.Resources>

这是我在 MainPage 中的日历

<!--Panorama item Calendar-->
<phone:PanoramaItem Header="Kalendarz studenta">
   <!--Single line list with text wrapping-->
   <Grid x:Name="ContentPanel222" Grid.Row="1" Margin="12,0,12,0">
      <Grid.RowDefinitions>
         <RowDefinition Height="*"/>
         <RowDefinition Height="Auto"/>
      </Grid.RowDefinitions>

      <wpControls:Calendar 
          x:Name="Cal"
          ColorConverter="{StaticResource ColorConverter}"  
         />                        
      <Button Grid.Row="1" Content="{Binding ElementName=Cal,Path=SelectedDate}"/>
   </Grid>
</phone:PanoramaItem>

这里是ColorConverter.cs

using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using WPControls;


namespace Ap_1
{
    public class ColorConverter : IDateToBrushConverter
    {

        public Brush Convert(DateTime dateTime, bool isSelected, Brush defaultValue, BrushType brushType)
        {
            if (brushType == BrushType.Background)
            {
                if (dateTime == new DateTime(DateTime.Today.Year, DateTime.Today.Month, 5))
                {
                    return new SolidColorBrush(Colors.Yellow);
                }
                else
                {
                    return defaultValue;
                }
            }
            else
            {
                if (dateTime == new DateTime(DateTime.Today.Year, DateTime.Today.Month, 6))
                {
                    return new SolidColorBrush(Colors.Red);
                }
                else
                {
                    return defaultValue;
                }
            }

        }
    }
}

这里是IDateToBrushConverter.cs

using System;
using System.Windows.Media;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Ap_1
{
    public interface IDateToBrushConverter
    {
        Brush Convert(DateTime dateTime, bool isSelected, Brush defaultValue, BrushType brushType);
    }
}

这是问题：

Exception: An object of the type "Ap_1.ColorConverter" cannot be applied to a property that expects the type "WPControls.IDateToBrushConverter".

Stack Trace: at Microsoft.Expression.Platform.InstanceBuilders.ClrObjectInstanceBuilder.UpdatePropertyOrChildValue(IInstanceBuilderContext context, ViewNode viewNode, IProperty propertyKey, Int32 childIndex, DocumentNodeChangeAction action, DocumentNode valueNode, ViewNode& childViewNode, IInstanceBuilder& valueBuilder, Boolean& isNewInstance) at Microsoft.Expression.Platform.InstanceBuilders.ClrObjectInstanceBuilder.UpdateProperty(IInstanceBuilderContext context, ViewNode viewNode, IProperty propertyKey, DocumentNode valueNode) at Microsoft.Expression.Platform.InstanceBuilders.DependencyObjectInstanceBuilderBase`1.UpdateProperty(IInstanceBuilderContext context, ViewNode viewNode, IProperty propertyKey, DocumentNode valueNode) at Microsoft.Expression.SilverlightPlatform.InstanceBuilders.FrameworkElementInstanceBuilder.UpdateProperty(IInstanceBuilderContext context, ViewNode viewNode, IProperty propertyKey, DocumentNode valueNode) at Microsoft.Expression.Platform.InstanceBuilders.ClrObjectInstanceBuilder.InstantiateProperties(IInstanceBuilderContext context, ViewNode viewNode, DocumentCompositeNode compositeNode) at Microsoft.Expression.Platform.InstanceBuilders.ClrObjectInstanceBuilder.Initialize(IInstanceBuilderContext context, ViewNode viewNode, Boolean isNewInstance) at Microsoft.Expression.Platform.InstanceBuilders.ViewNodeManager.InitializeInstance(IInstanceBuilder builder, ViewNode viewNode, Boolean isNewInstance)

这是我的屏幕

Answer 1

据我所知，您有 2 个不同的 IDateToBrushConverter 界面。一个在 WPControls 命名空间中，由 wpControls:Calendar.ColorConverter 属性使用，第二个在 Ap_1 命名空间中由 ColorConverter class 实现，因此错误

An object of the type "Ap_1.ColorConverter" cannot be applied to a property that expects the type "WPControls.IDateToBrushConverter

不要在 Ap_1 命名空间中定义第二个接口，而是使用 WPControls 命名空间

中的一个

namespace Ap_1
{
    public class ColorConverter : WPControls.IDateToBrushConverter
    {
        //your code
    }
}

System.Windows.StaticResourceExtension 无法应用属性

System.Windows.StaticResourceExtension cannot aplied property

c#

wpf

xaml

System.Windows.StaticResourceExtension 无法应用 属性

System.Windows.StaticResourceExtension cannot aplied property

c#

wpf

xaml

System.Windows.StaticResourceExtension 无法应用属性