共用方式為


CommandMapperExtensions.ReplaceMapping<TVirtualView,TViewHandler> 方法

定義

請就地取代命令對應,但如果類型不相符,請呼叫先前的對應。

public:
generic <typename TVirtualView, typename TViewHandler>
 where TVirtualView : Microsoft::Maui::IElement where TViewHandler : Microsoft::Maui::IElementHandler[System::Runtime::CompilerServices::Extension]
 static void ReplaceMapping(Microsoft::Maui::ICommandMapper<Microsoft::Maui::IElement ^, Microsoft::Maui::IElementHandler ^> ^ commandMapper, System::String ^ key, Action<TViewHandler, TVirtualView, System::Object ^> ^ method);
public static void ReplaceMapping<TVirtualView,TViewHandler> (this Microsoft.Maui.ICommandMapper<Microsoft.Maui.IElement,Microsoft.Maui.IElementHandler> commandMapper, string key, Action<TViewHandler,TVirtualView,object?> method) where TVirtualView : Microsoft.Maui.IElement where TViewHandler : Microsoft.Maui.IElementHandler;
static member ReplaceMapping : Microsoft.Maui.ICommandMapper<Microsoft.Maui.IElement, Microsoft.Maui.IElementHandler> * string * Action<'ViewHandler, 'VirtualView, obj (requires 'ViewHandler :> Microsoft.Maui.IElementHandler and 'VirtualView :> Microsoft.Maui.IElement)> -> unit (requires 'VirtualView :> Microsoft.Maui.IElement and 'ViewHandler :> Microsoft.Maui.IElementHandler)
<Extension()>
Public Sub ReplaceMapping(Of TVirtualView As IElement, TViewHandler As IElement) (commandMapper As ICommandMapper(Of IElement, IElementHandler), key As String, method As Action(Of TViewHandler, TVirtualView, Object))

類型參數

TVirtualView

跨平台類型。

TViewHandler

處理常式類型。

參數

commandMapper
ICommandMapper<IElement,IElementHandler>

要在其中變更對應的命令對應程式。

key
String

命令的名稱。

method
Action<TViewHandler,TVirtualView,Object>

更新命令時要呼叫的已修改方法。

適用於