Silverlight 4：“无效的XA​​ML”在DataTemplate中使用Converter [英] Silverlight 4: "Invalid XAML" using Converter in DataTemplate

问题描述

也许您可以帮助我理解为什么在 Page 上尝试执行以下操作时，为什么在Visual Studio 2010设计器中出现未处理的异常无效XAML。

maybe you could help me understand why I get an unhandled exception "Invalid XAML" in Visual Studio 2010 designer when trying to do the following on a Page.

我有一个名为 DateTimeConverter 的 Converter ，它将一个日期转换为一个德国日期字符串。转换器工作正常。我已经包含了名称空间，并在页面资源中添加了以下内容：

I have a Converter named DateTimeConverter that converts a date into a German date string. The converter works fine. I've included the namespace and added the following to the page's resources:

<navigation:Page.Resources>
    <myClasses:DateTimeConverter x:Key="dateTime" />
</navigation:Page.Resources>

现在我有一个要绑定到对象列表的列表框。我在代码中进行绑定，但是我想定义数据模板。因此，我在布局中添加了以下内容：

Now I have a list box that I want to bind to a list of objects. I do the binding in code, but I would like to define the data template. Thus I've added the following to my layout:

<ListBox x:Name="lbConversation" BorderBrush="#00000000">
    <ListBox.ItemTemplate>
        <DataTemplate>
            <Border BorderThickness="0" Padding="4">
                <StackPanel Orientation="Vertical">
                    <TextBlock Text="{Binding Message, Mode=OneWay}" />
                    <TextBlock Text="{Binding TimeStamp, Mode=OneWay, Converter={StaticResource dateTime}}" />
                </StackPanel>
            </Border>
        </DataTemplate>
    </ListBox.ItemTemplate>
</ListBox>

这在我跑步时工作正常。但是，在代码部分中，数据模板的代码未充分了解，设计人员说 Invalid XAML。当我删除 Converter = ... 部分时，此错误消失了。

And this works fine when I run. However, in the code section, the code for the data template is undercurled and the designer says "Invalid XAML". When I remove the Converter=... part, this error is gone.

这是设计器错误吗？我该怎么办？

Is this a designer bug? What can I do?

编辑

顺便说一句：完全相同的代码不会在WPF项目！

EDIT
By the way: The exact same code does not throw the error within a WPF project!

推荐答案

在我找到解决方案后，只需添加此问题即可。

Just adding to this question as I found a solution.

这里的解决方案是： http://forums.silverlight.net/post/618518.aspx

显然，您的项目名称或程序集名称中不得包含空格。

Apparently you must not have a space character in your project name or assembly name. D'oh!

希望它会有所帮助。

这篇关于Silverlight 4：“无效的XA​​ML”在DataTemplate中使用Converter的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！