EventToCommandBehavior 是允许用户通过 Event 调用Command 的一种 behavior。 它旨在将命令与未设计为支持命令的控件公开的事件相关联。 它允许将控件上的任意事件映射到命令。重要 .NET MAUI 社区工具包行为不会设置行为的 BindingContext,因为可以通过样式共享行为,并将其应用于多个控件。 有关详细信息,请参阅 ....
}//可绑定属性EventName的值更改时,执行RegisterEvent函数,注册事件staticvoidOnEventNamePropertyChanged(BindableObject bindable,objectoldValue,objectnewValue)=>((EventToCommandBehavior)bindable).RegisterEvent();//RegisterEvent和UnregisterEven注册和注销事件逻辑,eventHandler在事件和命令之间建立委托===voidRegisterEve...
—> System.ArgumentException: EventToCommandBehavior: Couldn’t resolve the event. Arg_ParamName_Name, EventName at CommunityToolkit.Maui.Behaviors.EventToCommandBehavior.RegisterEvent() at CommunityToolkit.Maui.Behaviors.EventToCommandBehavior.OnAttachedTo(VisualElement bindable) ...
设置命令绑定。然后Command绑定到ViewModel中的UnFocusedCommand <Editor.Behaviors> <toolkit:EventToCommandBehavior EventName="TextChanged" Command="{Binding Source={x:Reference this}, Path=BindingContext.UnFocusedCommand}"> </toolkit:EventToCommandBehavior> </Editor.Behaviors> 希望它对你有用。最新...
<toolkit:EventToCommandBehavior EventName="NavigatedFrom" Command="{Binding NavigatedFromCommand}" /> </ContentPage.Behaviors> <ContentPage.ToolbarItems> <ToolbarItem Command="{Binding CreateCommand}" IconImageSource="{FontImageSource FontFamily=MaterialSharp, Glyph={x:Static m:MaterialSharp.Add}, Co...
EventToCommandBehavior EventName="Appearing"Command="{Binding AppearingCommand}"/></ContentPage....
SelectedItemEventArgsConverterSelectedItemEventArgsConverter是一个转换器,允许用户从SelectedItemEventArgs对象中提取 Item 值。 它随后可与EventToCommandBehavior结合使用。 StateToBoolConverterStateToBoolConverter是一个单向转换器,根据提供的值是否为特定LayoutState返回boolean结果。
voidOnPointerExited(objectsender,PointerEventArgse){// Position inside windowPoint?windowPosition=e.GetPosition(null);// Position relative to an ImagePoint?relativeToImagePosition=e.GetPosition(image);// Position relative to the container viewPoint?relativeToContainerPosition=e.GetPosition((View)sender...
(RegionNames.MainRegion, nameof(ViewB)); }); public ICommand PublishEventCommand => new DelegateCommand(() => { eventAggregator.GetEvent<EventTest>().Publish(new EventTestDto("这是一个Title", $"这是一个Content,发布时间为:{DateTime.Now:yyy-MM-dd HH:mm:ss}")); logger.Information("发布...
[release/9.0.1xx] Match Catalyst Template to iOS for Shell Flyout Items by @github-actions in#25269 [release/9.0.1xx] [net9.0] Disable NSToolbar Tabs by @github-actions in#25289 Fix Colors Namespace by@PureWeenin#25356 [release/9.0.1xx] Add services.AddHybridWebViewDeveloperTools() ...