为什么我的 xaml 只显示一个没有显示的普通窗口 [英] Why my xaml only shows a plain window show up with nothig in it

问题描述

我是 WPF、Xaml 的新手，也是 C# 初学者！我一直在研究这个，我不知道为什么下面的 xaml 只显示一个普通的窗口.没有按钮，没有标题，没有内容.我将不胜感激您的指导.如果问我为什么必须使用 MediaChecker，我会按照 Stack Overflow 的以下帖子中的示例进行操作:

I am new to WPF, Xaml, and am a C# beginner! I have been working on this and I don't know why the following xaml just shows a plain window. No button, no title, no content. I would appreciate your guidance. If asking why I had to use MediaChecker I did it following an example from Stack Overflow's following post:

如何从一个 Xaml 文件导航到另一个?

提前致谢.

<Window x:Class="MediaCheckerWPF.AboutBox" 
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    Title="About Media Checker" Height="300" Width="400" ResizeMode="NoResize" 
    ShowInTaskbar="False">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*" />
            <RowDefinition Height="28" />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="Auto" />
            <ColumnDefinition Width="200" />
        </Grid.ColumnDefinitions>
        <Label Grid.Row="0" Grid.Column="0" Content="Name:"/>
        <Label Grid.Row="1" Grid.Column="0" Content="E-Mail:"/>
        <Label Grid.Row="2" Grid.Column="0" Content="Comment:"/>
        <Button Grid.Column="1" Grid.Row="0" HorizontalAlignment="Right" 
            MinWidth="80" Margin="3" Content="START"  />
        <Button Grid.Column="1" Grid.Row="3" HorizontalAlignment="Right" 
            MinWidth="80" Margin="3" Content="STOP"  />

    </Grid>
</Window> 

推荐答案

您拥有的 XAML 呈现得很好.如果你得到一个空白窗口，那么我怀疑它与其他事情有关，例如启动一个不同的窗口.

The XAML you have renders just fine. If you're getting a blank window then I suspect it has to do with something else, such as starting up a different Window.

再次检查 StartupUri 在 App.xaml

Double-check that the correct Window is starting up in the StartupUri property of your <Application> tag in App.xaml

<Application x:Class="MediaCheckerWPF.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             StartupUri="AboutBox.xaml">
    <Application.Resources>

    </Application.Resources>
</Application>

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