Xamarin 如何在旋转木马视图中设置listview所选项目为空
我在旋转视图中有设置列表视图，但如何存档设置列表视图所选项目为空，现在当我点击列表视图项目中的任何项目旋转视图时，它会显示默认颜色，但我们需要删除该颜色。请提出任何意见。提前谢谢 示例代码：Xamarin 如何在旋转木马视图中设置listview所选项目为空,xamarin,xamarin.forms,Xamarin,Xamarin.forms,我在旋转视图中有设置列表视图，但如何存档设置列表视图所选项目为空，现在当我点击列表视图项目中的任何项目旋转视图时，它会显示默认颜色，但我们需要删除该颜色。请提出任何意见。提前谢谢 示例代码： <cv:CarouselView VerticalOptions = "FillAndExpand" HorizontalOptions = "FillAndExpand" Position = "{Binding DishCategory}" ItemSelected = "OnSwipeDish
<cv:CarouselView VerticalOptions = "FillAndExpand" HorizontalOptions = "FillAndExpand" Position = "{Binding DishCategory}" ItemSelected = "OnSwipeDishesHandler" ItemsSource = "{Binding RestaurantDishesList}" x:Name = "RestaurantDishesList">
<cv:CarouselView.HeightRequest>
<OnIdiom x:TypeArguments ="x:Double" Phone ="230" Tablet ="630"/>
</cv:CarouselView.HeightRequest>
<cv:CarouselView.ItemTemplate>
<DataTemplate>
<StackLayout Padding = "10,5,10,5" Orientation = "Vertical">
<ListView x:Name="RestaurantMenuListView" BackgroundColor="Transparent" ItemsSource="{Binding CategoryWiseDishes}" HasUnevenRows="true" SeparatorColor="#eeeeee">
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<StackLayout Padding="7">
<Grid Padding="2">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<StackLayout Grid.Column="0" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand">
<StackLayout.GestureRecognizers>
<TapGestureRecognizer Tapped="OnMenuItemSelected"/>
</StackLayout.GestureRecognizers>
<Label Text="{Binding Name}" TextColor="Black">
<Label.FontSize>
<OnIdiom x:TypeArguments ="x:Double" Phone ="15" Tablet ="20"/>
</Label.FontSize>
</Label>
<Label Text="{Binding Description}" TextColor="#323232">
<Label.FontSize>
<OnIdiom x:TypeArguments ="x:Double" Phone ="11" Tablet ="16"/>
</Label.FontSize>
</Label>
<StackLayout Orientation="Horizontal">
<Label Text="£" TextColor="Black">
<Label.FontSize>
<OnIdiom x:TypeArguments ="x:Double" Phone ="14" Tablet ="19"/>
</Label.FontSize>
</Label>
<Label Text="{Binding Cost}" TextColor="Black">
<Label.FontSize>
<OnIdiom x:TypeArguments ="x:Double" Phone ="14" Tablet ="19"/>
</Label.FontSize>
</Label>
</StackLayout>
</StackLayout>
<StackLayout Grid.Column="1" Orientation="Horizontal" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand">
<Image Source="minus.png">
<Image.WidthRequest>
<OnIdiom x:TypeArguments ="x:Double" Phone ="25" Tablet ="35"/>
</Image.WidthRequest>
<Image.HeightRequest>
<OnIdiom x:TypeArguments ="x:Double" Phone ="25" Tablet ="35"/>
</Image.HeightRequest>
<Image.GestureRecognizers>
<TapGestureRecognizer Tapped="RemoveItemBtnClicked"/>
</Image.GestureRecognizers>
</Image>
<Label Text="{Binding TotalQuantity}" HorizontalOptions="Center" VerticalOptions="Center" TextColor="Black">
<Label.FontSize>
<OnIdiom x:TypeArguments="x:Double">
<OnIdiom.Phone>
<OnPlatform x:TypeArguments="x:Double" iOS="13" Android="13" WinPhone="13" />
</OnIdiom.Phone>
<OnIdiom.Tablet>
<OnPlatform x:TypeArguments="x:Double" iOS="15" Android="15" WinPhone="15" />
</OnIdiom.Tablet>
</OnIdiom>
</Label.FontSize>
</Label>
<Image Source="add.png">
<Image.WidthRequest>
<OnIdiom x:TypeArguments ="x:Double" Phone ="25" Tablet ="35"/>
</Image.WidthRequest>
<Image.HeightRequest>
<OnIdiom x:TypeArguments ="x:Double" Phone ="25" Tablet ="35"/>
</Image.HeightRequest>
<Image.GestureRecognizers>
<TapGestureRecognizer Tapped="AddItemBtnClicked"/>
</Image.GestureRecognizers>
</Image>
</StackLayout>
</Grid>
</StackLayout>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</StackLayout>
</DataTemplate>
</cv:CarouselView.ItemTemplate>
</cv:CarouselView>
<ListView x:Name="RestaurantMenuListView" BackgroundColor="Transparent" ItemsSource="{Binding CategoryWiseDishes}" HasUnevenRows="true" SeparatorColor="#eeeeee" ItemTapped="OnItemTapped">
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到目前为止你试过什么？什么不起作用？谢谢你花时间回答我的问题。我已尝试将列表视图中的选定事件项设置为null，但在xaml.cs文件中未检测到列表视图中的旋转木马视图。那么我如何设置列表视图内旋转木马视图的选定事件为null请显示您的xamlHi yuri，我已用示例代码更新了我的问题。你能看一下吗，那太好了，普拉文。
public void OnItemTapped(object sender, ItemTappedEventArgs e)
{
((ListView)sender).SelectedItem = null;
}
public ICommand SelectionCommand => new Command(ItemSelected);
private async void ItemSelected()
{
if (Selection != null)
{
var persondetaildata = Selection.Name;
await Shell.Current.GoToAsync($"//DetailPage?persondetaildata={persondetaildata}");
Selection = null;
}
}