我正在尝试不同的方法来实现自适应网格并使用我自己的图像填充它，但无论我只是得到一个空白屏幕。
我已经尝试过以下操作，我没有错误但是当我在本地运行它时除了命令栏之外没有任何错误：
MainPage.xaml中：
<Page
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:MobileAppProject"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:viewModels="using:ViewModels"
xmlns:Controls="using:Microsoft.Toolkit.Uwp.UI.Controls"
x:Class="MobileAppProject.MainPage"
mc:Ignorable="d">
<Page.Resources>
<DataTemplate x:Key="AdaptTemplate" x:DataType="local:AdaptItem">
<Grid
Background="White"
BorderBrush="Black"
BorderThickness="1">
<Image
Source="{Binding Image}"
Stretch="UniformToFill"
HorizontalAlignment="Center"
VerticalAlignment="Center"/>
</Grid>
</DataTemplate>
</Page.Resources>
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<ScrollViewer VerticalScrollMode="Auto" VerticalScrollBarVisibility="Auto">
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}" Margin="12,10,12,12">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<StackPanel Margin="0,0,0,10"/>
<Grid Grid.Row="1">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition/>
</Grid.RowDefinitions>
<Controls:AdaptiveGridView Name="AdaptiveGridViewControl"
OneRowModeEnabled="False"
ItemHeight="200"
DesiredWidth="300"
SelectionMode="Single"
IsItemClickEnabled="True"
ItemTemplate="{StaticResource AdaptTemplate}"/>
<StackPanel VerticalAlignment="Bottom" Margin="0,24,0,0" Grid.Row="1" Background="{ThemeResource SystemControlBackgroundAccentBrush}">
<CommandBar x:Name="cmdbar"
IsOpen="{Binding IsChecked, ElementName=isopentoggle, Mode=TwoWay}"
IsSticky="{Binding IsChecked, ElementName=isstickytoggle, Mode=TwoWay}"
ClosedDisplayMode="{Binding SelectedItem.Content, ElementName=combobox}">
<CommandBar.SecondaryCommands>
<AppBarButton Label="Menu Item 1"/>
<AppBarButton Label="Menu Item 2"/>
<AppBarButton Label="Menu Item 3"/>
<AppBarButton Label="Menu Item 4"/>
</CommandBar.SecondaryCommands>
<AppBarButton Icon="Accept" Label="Accept"/>
<AppBarToggleButton Icon="Contact" Label="Contact"/>
</CommandBar>
<Image HorizontalAlignment="Left" Source="Assets/storeLogo-sdk.png" Stretch="None"/>
</StackPanel>
</Grid>
<!-- Status Block for providing messages to the user. Use the
NotifyUser() method to populate the message -->
<TextBlock x:Name="StatusBlock" Grid.Row="2" Margin="12, 10, 12, 10" Visibility="Collapsed"/>
</Grid>
</ScrollViewer>
</Grid>
</Page>
MainPage.xaml.cs中：
private ObservableCollection<AdaptItem> picItems_;
private ObservableCollection<AdaptItem> PicItems
{
get
{
return picItems_;
}
set
{
picItems_ = value;
}
}
public MainPage()
{
this.InitializeComponent();
picItems_ = AdaptItem.AdaptList();
this.DataContext = PicItems;
}
AdaptTemplate.cs用于填充AdaptGrid：
public class AdaptItem
{
public String Image
{
get;
set;
}
}
public static ObservableCollection<AdaptItem> AdaptList()
{
ObservableCollection<AdaptItem> pics = new ObservableCollection<AdaptItem>()
{
new AdaptItem
{
Image = "Assets/01.jpg"
},
new AdaptItem
{
Image = "Assets/02.jpg"
},
new AdaptItem
{
Image = "Assets/03.jpg"
},
new AdaptItem
{
Image = "Assets/04.jpg"
},
new AdaptItem
{
Image = "Assets/05.jpg"
}
};
return pics;
}
答案 0 :(得分：0)
您的方法存在的问题是，您要设置整个视图的数据上下文，而不是设置ItemSource的{{1}}。
只需替换以下代码：
AdaptivePanel使用：
this.DataContext = PicItems;
要使上述内容有效，请确保将控件命名为AdaptiveGridViewControl.ItemsSource = PicItems;至Name="AdaptiveGridViewControl"
x:Name="AdaptiveGridViewControl"有助于将代码中的控件用于不属于x:默认控件的控件。
话虽如此，我强烈建议您使用UWP代替x:bind。我可以看到你在数据模板中尝试过。您无法这样做，因为您需要Binding x:Bind的图像控件，而不是字符串。你可以通过如下指定AdaptItem来实现：
BitmapImage，您的public class AdaptItem
{
public Windows.UI.Xaml.Media.Imaging.BitmapImage Image { get; set; }
public static ObservableCollection<AdaptItem> AdaptList()
{
ObservableCollection<AdaptItem> pics = new ObservableCollection<AdaptItem>()
{
new AdaptItem
{
Image = new Windows.UI.Xaml.Media.Imaging.BitmapImage(new Uri("ms-appx:///Assets/01.jpg"))
},
new AdaptItem
{
Image = new Windows.UI.Xaml.Media.Imaging.BitmapImage(new Uri("ms-appx:///Assets/02.png"))
},
new AdaptItem
{
Image = new Windows.UI.Xaml.Media.Imaging.BitmapImage(new Uri("ms-appx:///Assets/03.png"))
},
};
return pics;
}
}
如下：
DataTemplate话虽如此，我还建议您使用<Page.Resources>
<DataTemplate x:Key="AdaptTemplate" x:DataType="local:AdaptItem">
<Grid
Background="White"
BorderBrush="Black"
BorderThickness="1">
<Image
Source="{x:Bind Image}"
Stretch="UniformToFill"
HorizontalAlignment="Center"
VerticalAlignment="Center"/>
</Grid>
</DataTemplate>
</Page.Resources>
来设置DataBinding。