点击事件不工作提供刷卡Xamarin表格

Question

我正在使用Xamarin形式的刷卡。 问题是我无法在卡内执行点击事件。

这是我的Xaml代码 -

<swipecards:CardStackView 
    Grid.Row="0"  
    x:Name="CardStackView" 
    ItemsSource="{Binding Cards[0]}" 
    Swiped="CardStackView_Swiped" 
    StartedDragging="CardStackView_dragged" 
    Margin="20" 
    BackgroundColor="#E0E0E0" 
    Focused="CardStackView_Focused">

    <swipecards:CardStackView.ItemTemplate>
        <DataTemplate>
            <Grid RowSpacing="1" ColumnSpacing="1">            
                <Grid.RowDefinitions>
                    <RowDefinition Height="*" />
                    <RowDefinition Height="*" />
                    <RowDefinition Height="*" />
                    <RowDefinition Height="*" />
                    <RowDefinition Height="*" />
                </Grid.RowDefinitions>

                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="Auto" />
                    <ColumnDefinition Width="*" />
                </Grid.ColumnDefinitions>

                <StackLayout
                    Orientation="Horizontal" 
                    Grid.Row="0" 
                    Grid.ColumnSpan="2">

                    <Label 
                        Text="{Binding .FullJobName}" 
                        HorizontalOptions="Start" 
                        Style="{StaticResource TitleLabel}"/>

                    <Grid VerticalOptions="Start">
                        <Image 
                            x:Name="MyImage" 
                            Source="{Binding .CompanyProfImg}" 
                            HorizontalOptions="FillAndExpand" 
                            Aspect="AspectFit" />

                        <ActivityIndicator 
                            BindingContext="{x:Reference MyImage}" 
                            IsRunning="{Binding IsLoading}}"/>

                    </Grid>
                </StackLayout>

                <StackLayout Grid.Row="1" Grid.ColumnSpan="2">
                    <Label 
                        Text="{Binding .LocationName}" 
                        HorizontalOptions="StartAndExpand" 
                        Style="{StaticResource label_med}"/>

                    <Label 
                        Text="{Binding .TotalSalary }" 
                        Style="{StaticResource label_med}"/>

                </StackLayout>

                <StackLayout Grid.Row="2" Grid.ColumnSpan="2">
                    <Label 
                        Text="Comapny Name" 
                        Style="{StaticResource TitleLabel}" 
                        HorizontalOptions="StartAndExpand"/>

                    <Label 
                        Text="{Binding .CompanyName}" 
                        HorizontalOptions="StartAndExpand" 
                        Style="{StaticResource label_med}"/>

                </StackLayout>

                <StackLayout Grid.Row="3" Grid.ColumnSpan="2">
                    <Label 
                        Text="Key Skills" 
                        Style="{StaticResource TitleLabel}" 
                        HorizontalOptions="StartAndExpand"/>

                    <Label 
                        Text="{Binding .Skills}" 
                        HorizontalOptions="StartAndExpand" 
                        Style="{StaticResource label_med}"/>

                </StackLayout>

                <StackLayout Grid.Row="4" Grid.ColumnSpan="2">
                    <Label 
                        Text="Job Description" 
                        Style="{StaticResource TitleLabel}" 
                        HorizontalOptions="StartAndExpand"/>

                    <Label 
                        Text="{Binding .Description}" 
                        HorizontalOptions="StartAndExpand" 
                        Style="{StaticResource label_med}"/>

                </StackLayout>

                <StackLayout Grid.Row="5" Grid.ColumnSpan="2">
                    <BoxView Color="#DCDCDC" HeightRequest="2" />
                    <StackLayout Orientation="Horizontal">
                        <Label 
                            Text="{Binding .Postedby}" 
                            HorizontalOptions="Start" 
                            Style="{StaticResource label_med}"/>

                        <Image x:Name="More_Option" Source="more.png">
                            <Image.GestureRecognizers>
                                <TapGestureRecognizer 
                                    Command="{Binding TapCommand}" 
                                    CommandParameter="Image1"/>
                            </Image.GestureRecognizers>
                        </Image>
                    </StackLayout>
                </StackLayout>
            </Grid>
        </DataTemplate>
    </swipecards:CardStackView.ItemTemplate>
</swipecards:CardStackView>

和ViewModel看起来像这样 -

private ICommand tapCommand;
public ICommand TapCommand
{
    get { return tapCommand; }
    set
    {
        OnTapped(this.tapCommand);
    }
}
void OnTapped(object s)
{

}

我的代码出了什么问题？我也尝试过正常的方法，正常的点击事件。但这也没有用。 我正在引用此链接 - Link

谢谢你们。