XamlParseException未处理. [英] XamlParseException was unhandled.

问题描述

你好.我遇到了调试WPF-WCF简单聊天应用程序的问题.有一个例外，例如:

Hi there. I faced the problem debugging my WPF-WCF simple chat application. There''s an exception like:

XamlParseException was unhandled. 'The invocation of the constructor on type 'ChatGUI.MainWindow' that matches the specified binding constraints threw an exception.' Line number '3' and line position '9'.

我看到这是XAML异常，所以这里是XAML代码清单:

I see that''s a XAML exception, so here''s the XAML code listing:

<Window x:Class="ChatGUI.MainWindow"

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="35*" />
            <RowDefinition Height="35" />
        </Grid.RowDefinitions>
        <TextBox Height="Auto" HorizontalAlignment="Stretch" Margin="6,6,6,6" Name="textBoxChatPane" VerticalAlignment="Stretch" Width="Auto" Grid.Row="0" />
        <TextBox Height="23" HorizontalAlignment="Stretch" Margin="6,6,6,6" Name="textBoxEntryField" VerticalAlignment="Stretch" Width="Auto" Grid.Row="1" KeyDown="textBoxEntryField_KeyDown" />
    </Grid>
</Window>

您见过同样的问题吗?我很高兴看到所有有用的建议.
在此先感谢.

Have you ever seen the same problem? I would be glad to see every useful advice.
Thanks in advance.

推荐答案

我的猜测是，这条线:
_backend = new ChatBackend.ChatBackend(this.DisplayMessage);
引发异常.

尝试在线路上设置断点并调试应用程序.

如果打开App.xaml，您将看到其中引用了ChatGUI.MainWindow.

最好的问候
Espen Harlinn

My guess is that this line:
_backend = new ChatBackend.ChatBackend(this.DisplayMessage);
throws an exception.

Try setting a breakpoint on the line and debug your application.

If you open the App.xaml, you''ll see that the ChatGUI.MainWindow is referenced there.

Best regards
Espen Harlinn

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