Question

我的XAML看起来像这样：

<Grid VerticalOptions="Start">
   <Grid.ColumnDefinitions>
      <ColumnDefinition Width="Auto" />
      <ColumnDefinition Width="*" />
   </Grid.ColumnDefinitions>
   <Label Grid.Row="0" Grid.Column="0" HorizontalOptions="Start" Text="Exclude Hidden" Style="{StaticResource helpDetail}" />
   <Label Grid.Row="0" Grid.Column="1" HorizontalOptions="Start" Text="All cards except those tagged as hidden" Style="{StaticResource helpDetail}" />
   <Label Grid.Row="1" Grid.Column="0" HorizontalOptions="Start" Text="Include Hidden" Style="{StaticResource helpDetail}" />
   <Label Grid.Row="1" Grid.Column="1" HorizontalOptions="Start" Text="All cards including those tagged as hidden" Style="{StaticResource helpDetail}" />
   <Label Grid.Row="2" Grid.Column="0" HorizontalOptions="Start" Text="Favorites" Style="{StaticResource helpDetail}" />
   <Label Grid.Row="2" Grid.Column="1" HorizontalOptions="Start" Text="Only cards tagged as favorites" Style="{StaticResource helpDetail}" />
   <Label Grid.Row="3" Grid.Column="0" HorizontalOptions="Start" Text="Hidden" Style="{StaticResource helpDetail}" />
   <Label Grid.Row="3" Grid.Column="1" HorizontalOptions="Start" Text="Only those cards tagged as hidden" Style="{StaticResource helpDetail}" />
</Grid>

代码显示在两页上。我想把它留作XAML。

有没有办法可以将这个XAML放入一个文件中，并将其包含在两个页面中的每个页面的其他XAML中。请注意，我不想将所有内容转换为C＃，因为我有很多这样的实例。

Answer 1

创建一个名为Templates的目录，然后像这样创建一个新的View类MyCustomGrid：

模板/ MyCustomGrid.xaml ：

<?xml version="1.0" encoding="UTF-8"?>
<Grid xmlns="http://xamarin.com/schemas/2014/forms"
    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
    x:Class="MyProject.Templates.MyCustomGrid">
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="Auto" />
        <ColumnDefinition Width="*" />
    </Grid.ColumnDefinitions>
    <Label Grid.Row="0" Grid.Column="0" HorizontalOptions="Start" Text="Exclude Hidden" Style="{StaticResource helpDetail}" />
    <Label Grid.Row="0" Grid.Column="1" HorizontalOptions="Start" Text="All cards except those tagged as hidden" Style="{StaticResource helpDetail}" />
    <Label Grid.Row="1" Grid.Column="0" HorizontalOptions="Start" Text="Include Hidden" Style="{StaticResource helpDetail}" />
    <Label Grid.Row="1" Grid.Column="1" HorizontalOptions="Start" Text="All cards including those tagged as hidden" Style="{StaticResource helpDetail}" />
    <Label Grid.Row="2" Grid.Column="0" HorizontalOptions="Start" Text="Favorites" Style="{StaticResource helpDetail}" />
    <Label Grid.Row="2" Grid.Column="1" HorizontalOptions="Start" Text="Only cards tagged as favorites" Style="{StaticResource helpDetail}" />
    <Label Grid.Row="3" Grid.Column="0" HorizontalOptions="Start" Text="Hidden" Style="{StaticResource helpDetail}" />
    <Label Grid.Row="3" Grid.Column="1" HorizontalOptions="Start" Text="Only those cards tagged as hidden" Style="{StaticResource helpDetail}" />
</Grid>

模板/ MyCustomGrid.xaml.cs

using Xamarin.Forms;

namespace MyProject.Templates
{
    public partial class MyCustomGrid : Grid
    {
        public MyCustomGrid()
        {
            InitializeComponent();
        }
    }
}

在另一个页面中使用它，即 MyPage.xaml ：

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
    xmlns:templates="clr-namespace:MyProject.Templates;assembly=MyProject"
    x:Class="MyProject.MyPage">

    <templates:MyCustomGrid />

</ContentPage>

Answer 2

将代码插入ContentView。在ContentPages中调用此代码。

https://forums.xamarin.com/discussion/87415/how-to-display-content-from-one-xaml-inside-another

Answer 3

在这种情况/困境中，您可以利用Xamarin的ContentView类。

您可以将ContentView视为ContentPage的子类或子级。所以，基本上，如果你有一个Xamarin页面是一个ContentPage。 ContentView可以是ContentPage中的视图或子元素。它们都有自己的结构：

ContentPage XAML（例如MainContentPage.xaml）

 <?xml version="1.0" encoding="utf-8" ?>
    <ContentPage>
       <ContentPage.Content>
          <StackLayout x:Name="MainLayout">
          ...
          </StackLayout>
       </ContentPage.Content>
    </ContentPage>

ContentView XAML（例如ChildContentView.xaml）

 <?xml version="1.0" encoding="utf-8" ?>
    <ContentView>
       <ContentView.Content>
          <StackLayout>
          ...
          </StackLayout>
       </ContentView.Content>
    </ContentView>

ContentPage类（例如MainContentPage.cs）可能看起来像这样：

 namespace Your.Package
 {
      public class MainContentPage : ContentPage
      {
          public MainContentPage()
          {
              //Some code here, binding, initialization etc.

              //Create an object of the ChildContentView code behind/class
              ChildContentView childView = new ChildContentView();

              //Add the childView to the MainLayout of the ContentPage
              this.MainLayout.Children.Add(childView);

              InitializeComponent();
          }
      }
 }

在您的ChildContentView.cs（后面的代码）中，您基本上可以执行与在任何ContentPage类后面的代码中可以执行的操作相同的编码。您可以添加StackLayout，可以进行绑定，也可以使用TemplatedView父类中的其他继承方法。有关详细信息，请参阅this link。

是否可以在另一个XAML块中包含一块XAML？

3 个答案: