这是我的代码
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
x:Class="App3.Page2"
Title="Welcome to the second page!!!">
<ContentPage.Content>
<ScrollView>
<StackLayout>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="3*"/>
<RowDefinition Height="3*"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Editor x:Name="fstN"
Text="Enter 1st number"
Grid.Row="0"
Grid.Column="0"
Grid.ColumnSpan="2"
HorizontalOptions="Fill"
VerticalOptions="Fill"
TextChanged="fstNTextChanged"/>
<Editor x:Name="scndN"
Text="Enter 2nd number"
Grid.Row="0"
Grid.Column="2"
Grid.ColumnSpan="2"
HorizontalOptions="Fill"
VerticalOptions="Fill"
TextChanged="scndNTextChanged"/>
<Button x:Name="plusButton"
Text="+"
Grid.Row="1"
Grid.Column="0"
HorizontalOptions="Fill"
VerticalOptions="Fill"
Clicked="plusButtonCicked"/>
<Button Text="-"
Grid.Row="1"
Grid.Column="1"
HorizontalOptions="Fill"
VerticalOptions="Fill"
/><!--Clicked="minusBtnCicked"/>-->
<Button Text="/"
Grid.Row="1"
Grid.Column="2"
HorizontalOptions="Fill"
VerticalOptions="Fill"
/><!--Clicked="ratioBtnCicked"/>-->
<Button Text="*"
Grid.Row="1"
Grid.Column="3"
HorizontalOptions="Fill"
VerticalOptions="Fill"
/><!--Clicked="productionBtnCicked"/>-->
<Label x:Name="lblAns"
Text="Answer"
Grid.Row="2"
Grid.ColumnSpan="4"
HorizontalOptions="Fill"
VerticalOptions="Fill"/>
</Grid>
</StackLayout>
</ScrollView>
</ContentPage.Content>
</ContentPage>
我评论了所有按钮的点击事件,除了一个只是为了显示 并且有一个错误,听起来像&#34; Xamarin.Forms.Xaml.XamlParseException:在类型App3.Page2&#34;上找不到方法plusButtonClicked。 关于这是什么的任何想法?