如何将XAML用户控件放在网格中

Question

我有以下main.xaml和usercontrol.

我需要在网格的第二行,第二列上放置几次用户控件,通过使用visual studio它不会允许拖放用户控件,所以我想我必须通过代码来完成,我只是不知道怎么样

MainPage.xaml中

<Grid HorizontalAlignment="Left" Height="768" VerticalAlignment="Top" Width="1366" x:Name="grid" Background="Black">
        <Grid.RowDefinitions>
            <RowDefinition Height="150"/>
            <RowDefinition/>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition/>
            <ColumnDefinition Width="250"/>
        </Grid.ColumnDefinitions>
        <Border BorderBrush="White" BorderThickness="3" Grid.Column="1" Background="Red" CornerRadius="30"/>
        <TextBlock x:Name="txtCountry" Grid.Column="1" TextWrapping="Wrap"  FontSize="36" HorizontalAlignment="Center" VerticalAlignment="Center"/>
        <TextBlock x:Name="txtTime" Grid.Row="1" TextWrapping="Wrap" FontSize="180" HorizontalAlignment="Center" VerticalAlignment="Center"/>
    </Grid>

用户控件

<UserControl
    x:Class="AlarmPro.TimeOnCity"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:AlarmPro"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    d:DesignHeight="150"
    d:DesignWidth="250">

    <Grid Background="Black">
        <Grid.RowDefinitions>
            <RowDefinition Height="30"/>
            <RowDefinition/>
        </Grid.RowDefinitions>
        <Border BorderBrush="#FFDE6A6A" BorderThickness="1" Grid.Row="0" Grid.Column="0" Background="#FFDC4646">
            <TextBlock TextWrapping="Wrap" Text="TextBlock" HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="16"/>
        </Border>
        <Border BorderBrush="Black" BorderThickness="1" Grid.Row="1" Background="#FFAE4F00">
            <TextBlock TextWrapping="Wrap" Text="TextBlock" HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="36"/>
        </Border>

    </Grid>
</UserControl>

Answer 1

你的意思是这样的吗？

 <my:UserControlName Grid.Column="2" Grid.Row="2" ... />

<my:在这种情况下UserControl,它是驻留在CLR命名空间的别名.它根据上下文定义在XAML的顶部,<Window>或<UserControl>标记内.

例如,

<Window ... 
    xmlns:my="clr-namespace:AssemblyName"
    ...
/>

Answer 2

MainPage.xaml中

<Page
    x:Class="UserControlExample.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:UserControlExample"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid x:Name="MainContent" Background="Azure" >
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <ScrollViewer Grid.Row="1" HorizontalScrollBarVisibility="Hidden" 
                VerticalScrollBarVisibility="Hidden">                        
            <local:UserControl1 x:Name="MyHelloWorldUserControl" Grid.Row="1" />
        </ScrollViewer>
    </Grid>           
</Page>

UserControl1.xaml

<UserControl
    x:Class="UserControlExample.UserControl1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:UserControlExample"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    d:DesignHeight="300"
    d:DesignWidth="400">

    <Grid Background="Bisque">
        <StackPanel>
            <StackPanel Orientation="Horizontal" Height="81">
                <TextBlock Text="Your Name is" Foreground="Blue" FontSize="30" Margin="0,0,0,10"/>
                <TextBox x:Name="Input" Background="White" Width="225" />
             </StackPanel>
             <Button Content="Click Me" Foreground="Brown" FontSize="30" Click="Button_Click"/>
             <TextBlock x:Name="Output" FontSize="100"/>
         </StackPanel>
     </Grid>
 </UserControl>