C# 在wp7中使用转换器绑定图像

我正在使用VS2012和C#（Windows 8.0 SDK）开发Windows phone应用程序，我是新手，我正在使用下面的代码使用

转换器绑定PNG图像

xmlns:myproject=“clr命名空间：SolutionName.Converters”

你可以看到我在装订图像

<Image Width="80" Height="80" Source="{Binding device, Converter={StaticResource LoginHistoryImageConverter}}"/>

当我得到字符串
“M”
时，我需要显示
mobile
image-else
PC
image
但当我导航到我的页面时，它会在
“InitializeComponent（）”
处触发
XamlParseException
，请观察图片

甚至我也尝试了下面的代码来绑定图像，但没有成功

<Image Width="80" Height="80">
    <Image.Source>
        <BitmapImage UriSource="{Binding device, Converter={StaticResource LoginHistoryImageConverter}}"/>
    </Image.Source>
</Image>



我错过什么了吗。请帮帮我

完整XAML代码

<phone:PhoneApplicationPage
    x:Class="SampleProject.Views.Settings.Logs.LoginHistory"
    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:toolkit="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone.Controls.Toolkit"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:myproject="clr-namespace:SampleProject.Converters"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    FontFamily="{StaticResource PhoneFontFamilyNormal}"
    FontSize="{StaticResource PhoneFontSizeNormal}"
    Foreground="{StaticResource PhoneForegroundBrush}"
    SupportedOrientations="Portrait" Orientation="Portrait"
    mc:Ignorable="d"
    shell:SystemTray.IsVisible="True">

    <UserControl.Resources>
        <myproject:LoginHistoryImageConverter x:Key="LoginHistoryImageConverter"/>
    </UserControl.Resources>

        <!--LayoutRoot is the root grid where all page content is placed-->
    <Grid x:Name="LayoutRoot" Background="{StaticResource pivotBackground}">
        <ListBox x:Name="listBoxLogs">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <Grid MinWidth="480" Height="88" Margin="12,0,12,0" HorizontalAlignment="Stretch">
                        <Image Width="80" Height="80" Source="{Binding device, Converter={StaticResource LoginHistoryImageConverter}}"/>
                        <StackPanel Orientation="Vertical" HorizontalAlignment="Left" Margin="85,0,0,0" VerticalAlignment="Center">
                            <TextBlock FontSize="25" Text="{Binding date}" Foreground="{StaticResource MessageListForeground}" HorizontalAlignment="Left"/>
                            <TextBlock FontSize="25" Text="{Binding ip_address}" Foreground="{StaticResource MessageListForeground}" HorizontalAlignment="Left" MaxWidth="200"/>
                        </StackPanel>
                        <StackPanel Orientation="Vertical" HorizontalAlignment="Right" VerticalAlignment="Center" Margin="0,0,38,0">
                            <TextBlock FontSize="18" Text="{Binding time}" Foreground="{StaticResource MessageListForeground}" HorizontalAlignment="Right"/>
                            <TextBlock FontSize="18" Text="{Binding location}" Foreground="{StaticResource MessageListForeground}" HorizontalAlignment="Right" MaxWidth="200"/>
                        </StackPanel>
                    </Grid>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>
    </Grid>

</phone:PhoneApplicationPage>

首先，您提供的XAML代码中存在一些问题。未定义
pivotBackground
和
MessageListForeground
资源，但您可能在全局级别定义了它们，例如在
App.xaml
中，在这种情况下应该可以

否则，您的代码应该可以工作。通过检查异常的详细信息，您可以获得有关故障确切原因的更多信息：当异常发生时，如您在屏幕截图中所示，单击“查看详细信息”，然后展开并检查
消息
和
内部异常
属性的值：

对不起，KooKiz，我现在编辑问题，实际上我引用的是同一个转换器。但是没有解决KooKiz，我在下面的代码中也遇到了同样的问题，它是简单的滑块代码，但是当我在textblock上添加Converter={StaticResource RoundOffConverter}时，它抛出了相同的异常，其中RoundOffConverter是Math。round（value）KooKiz，我用完整的xaml代码编辑了我的问题，请查收it@RajkumarMandera编辑我的答案，我希望helpsYes，我在App.xaml中定义了全局级别的MessageListForeground和pivotBackground，它们加载得很好，没有问题。我将检查InnerException属性。谢谢KooKiz
<phone:PhoneApplicationPage
    x:Class="SampleProject.Views.Settings.Logs.LoginHistory"
    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:toolkit="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone.Controls.Toolkit"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:myproject="clr-namespace:SampleProject.Converters"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    FontFamily="{StaticResource PhoneFontFamilyNormal}"
    FontSize="{StaticResource PhoneFontSizeNormal}"
    Foreground="{StaticResource PhoneForegroundBrush}"
    SupportedOrientations="Portrait" Orientation="Portrait"
    mc:Ignorable="d"
    shell:SystemTray.IsVisible="True">

    <UserControl.Resources>
        <myproject:LoginHistoryImageConverter x:Key="LoginHistoryImageConverter"/>
    </UserControl.Resources>

        <!--LayoutRoot is the root grid where all page content is placed-->
    <Grid x:Name="LayoutRoot" Background="{StaticResource pivotBackground}">
        <ListBox x:Name="listBoxLogs">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <Grid MinWidth="480" Height="88" Margin="12,0,12,0" HorizontalAlignment="Stretch">
                        <Image Width="80" Height="80" Source="{Binding device, Converter={StaticResource LoginHistoryImageConverter}}"/>
                        <StackPanel Orientation="Vertical" HorizontalAlignment="Left" Margin="85,0,0,0" VerticalAlignment="Center">
                            <TextBlock FontSize="25" Text="{Binding date}" Foreground="{StaticResource MessageListForeground}" HorizontalAlignment="Left"/>
                            <TextBlock FontSize="25" Text="{Binding ip_address}" Foreground="{StaticResource MessageListForeground}" HorizontalAlignment="Left" MaxWidth="200"/>
                        </StackPanel>
                        <StackPanel Orientation="Vertical" HorizontalAlignment="Right" VerticalAlignment="Center" Margin="0,0,38,0">
                            <TextBlock FontSize="18" Text="{Binding time}" Foreground="{StaticResource MessageListForeground}" HorizontalAlignment="Right"/>
                            <TextBlock FontSize="18" Text="{Binding location}" Foreground="{StaticResource MessageListForeground}" HorizontalAlignment="Right" MaxWidth="200"/>
                        </StackPanel>
                    </Grid>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>
    </Grid>

</phone:PhoneApplicationPage>