'System.Windows.Markup.XamlParseException‘未能分配给属性System.Windows.Markup.XamlParseException

Question

我在Windows上得到了一个System.Windows.Markup.XamlParseException。补充资料说：

未能向属性'Microsoft.Phone.Controls.PhoneTextBox.ActionIconTapped'.分配

下面是它提到的PhoneTextBox：

<toolkit:PhoneTextBox
   Grid.Row="1"
   x:Name="nameInput"
   VerticalAlignment="Top"
   InputScope="Text"
   Hint="Enter your first name"
   ActionIcon="/Assets/next.png"
   ActionIconTapped="nameInput_ActionIconTapped"
/>

事件处理程序：

void nameInput_ActionIconTapped(object sender, RoutedEventArgs e)
{
   this.NavigationService.Navigate(GreetingPage.BuildNavigationUri(nameInput.Text));
}

下面是GreetingPage的方法：

public static Uri BuildNavigationUri(string name)
{
   return new Uri("/GreetingPage.xaml?name=" + name, UriKind.Relative);
}

请您帮助解决这个异常，并找出它不想分配的原因？

Answer 1

包括System.Windows.Interactivity

xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"

然后添加以下内容：

<toolkit:PhoneTextBox ActionIcon="/Assets/feature.search.png">
    <i:Interaction.Triggers>
        <i:EventTrigger EventName="ActionIconTapped">
            <i:InvokeCommandAction Command="{Binding SomeCommand}" />
        </i:EventTrigger>
    </i:Interaction.Triggers>
</toolkit:PhoneTextBox>

答案摘自以下链接：

http://forums.xamarin.com/discussion/14299/how-to-map-the-actionicontapped-event-handler-of-phonetextbox-using-mvvmcross