c# - WPF使用主窗口中的 View

Question

我正在尝试在我的主窗口内部使用一个 View 。因此，我在项目的view文件夹内创建了view，然后尝试在主窗口中使用它。但是我得到运行时错误。有人可以帮忙吗？

XAML主窗口

<Window x:Class="DataRetrieval.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:prism="http://www.codeplex.com/prism"
         xmlns:views="clr-namespace:DataRetrieval.Views"
        Title="MainWindow" Height="350" Width="525">
    <TabControl Name="TabControl1" >
        <TabControl.ItemContainerStyle>
            <Style TargetType="{x:Type TabItem}">
                <Setter Property="Visibility" Value="Collapsed"/>
            </Style>
        </TabControl.ItemContainerStyle>
        <TabItem Header="General">
            <views:Login></views:Login>
        </TabItem>

    </TabControl>
</Window>

XAML View :

<Window x:Class="DataRetrieval.Views.Login"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Login" Height="300" Width="300">
    <Grid>
        <Grid.ColumnDefinitions>

            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="*"/>


        </Grid.ColumnDefinitions>
        <StackPanel Grid.Column="0">
            <Label Content="User Name:" Width="Auto"/>
            <Label Content="Password:" Width="Auto"/>

        </StackPanel>
        <StackPanel Grid.Column="1">
            <TextBox Grid.Column="1" Name="Username"  Text="" VerticalAlignment="Top" Width="Auto"/>
            <PasswordBox Grid.Column="1" Name="Password" VerticalAlignment="Top" Width="Auto"/>

        </StackPanel>

    </Grid>
</Window>

但是，当我运行应用程序时，我的主窗口xaml代码上出现运行时错误:

A first chance exception of type 'System.Windows.Markup.XamlParseException' occurred in PresentationFramework.dll

Additional information: 'Set property 'System.Windows.Controls.ContentControl.Content' threw an exception.' Line number '14' and line position '14'.

Answer 1

您不能将Window嵌套在另一个Window中。您可以将Grid直接放在Window中，也可以创建UserControl。