Question

我有这个XAML：

       <TableSection Title="Card Activity">
                        <TextCell Text="English" StyleId="disclosure" Tapped="openEnglishScorePage"/>
                        <TextCell Text="Romaji" StyleId="disclosure" Tapped="openRomajiScorePage"/>
                        <TextCell Text="Kana" StyleId="disclosure" Tapped="openKanaScorePage"/>
                        <TextCell Text="Kanji" StyleId="disclosure" Tapped="openKanjiScorePage"/>
                    </TableSection>

在我的.cs中我有这个：

    void openEnglishScorePage(object sender, EventArgs e)
    {
        Navigation.PushAsync(new EnglishScorePage());
    }

    void openKanaScorePage(object sender, EventArgs e)
    {
        Navigation.PushAsync(new KanaScorePage());
    }

    void openKanjiScorePage(object sender, EventArgs e)
    {
        Navigation.PushAsync(new KanjiScorePage());
    }

    void openRomajiScorePage(object sender, EventArgs e)
    {
        Navigation.PushAsync(new RomajiScorePage());
    }

有没有办法可以用一个替换四个.cs方法而在XAML中用一个参数调用这个方法？

Answer 1

是的，您可以，我将向您展示我使用的一些示例代码：我的XAML代码

   <StackLayout Orientation="Horizontal"  HorizontalOptions="Center" x:Name="sizestack">
            <local:CustomImageButton  WidthRequest="120" Clicked="buttonMenu_Clicked" Margin="0,0,-10,0" Image="eigendommen.png" ClassId="Eigendommen" x:Name="buttonGebouwen" HeightRequest="120"/>
            <local:CustomImageButton  WidthRequest="120"  x:Name="buttonHuurcontract"  Clicked="buttonMenu_Clicked" ClassId="Huurcontracten" Image="huurcontracten.png"  HeightRequest="120" />
        </StackLayout>
        <StackLayout Orientation="Horizontal"  HorizontalOptions="Center">
            <local:CustomImageButton  WidthRequest="120" Margin="0,-15,-10,0" Clicked="buttonMenu_Clicked"  Image="eigenaarshuurders.png" ClassId="Eigenaars" x:Name="buttonEigenaars"  TextColor="White" HeightRequest="120" />
            <local:CustomImageButton  WidthRequest="120" Margin="0,-15,0,0"  Clicked="buttonMenu_Clicked" Image="leveranciers.png" ClassId="Leveranciers" x:Name="buttonLeveranciers" HeightRequest="120" />
        </StackLayout>
        <StackLayout Orientation="Horizontal" HorizontalOptions="Center">
            <local:CustomImageButton  WidthRequest="120"  Margin="0,-15,-10,0" Clicked="buttonMenu_Clicked"  Image="meldingen.png" ClassId="AnnouncementPage" x:Name="buttonMeldingen" HeightRequest="120" />
            <local:CustomImageButton  WidthRequest="120" Margin="0,-15,0,0" Image="taken.png"  x:Name="buttonTaken" ClassId="Taken" Clicked="buttonMenu_Clicked" TextColor="White" HeightRequest="120" />
        </StackLayout>

在每个CustomImageButton中，我都有一个名为buttontonMenuClicked的事件。还要注意我填写了classId。我做了这个，所以我可以决定去哪个页面。

我的代码背后：

private void buttonMenu_Clicked(object sender, EventArgs e)
    {
        string naam = ((Button)(sender)).ClassId;
        Page navPage = new Page();

        switch (naam)
        {
            case "Eigendommen":
                navPage = new Gebouwen() {Title = "Eigendommen" };

                break;
            case "Leveranciers":
                navPage = new Leveranciers() { Title = "Leveranciers" };
                break;
            case "Eigenaars":
                navPage = new Eigenaars() { Title = "Eigenaars/Huurders" };
                break;
            case "Taken":
                navPage = new TakenPage() { Title = "Taken" };
                break;
            case "Huurcontracten":
                navPage = new HuurcontractenPage() { Title = "Huurcontracten" };
                break;
            default:
                navPage = new AnnouncementPage(id) { Title = "Meldingen" };
                break;
        }

        var app = Application.Current as App;

        var mainPage = (MenuPage)app.MainPage;

        mainPage.SelectMenuNewItem(navPage.Title);

        mainPage.Detail = new NavigationPageBar(navPage);


    }

所以我在这里请求classid，以便我可以决定去哪个页面。如果你不确定某事，可以提出问题;）

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