Xamarin表单：如何在listview中获取选定的选取器模型数据？

我的Listview中有一个选择器。我正在通过RESTAPI调用将数据绑定到listview。以下是我的模型：

public class Attendance
{
  public List<cbrainAttendanceHBList> cbrainAttendanceHBList { get; set; }
}

public class cbrainAttendanceHBList
{
   public string userId { get; set; }
   public string name { get; set; }
   public string isPresent { get; set; } 
   public string status
    {
        get
        {
            if (isPresent == "1.0")
                return "Present";
            else if (isPresent == "0.0")
                return "Absent";
            else if (isPresent == "0.5")
                return "Half Day";
            else return "";
        }
    }
}

选择器位于ListView的内部。选择器代码：

 <ListView 
       x:Name="StudentList"
       RowHeight="75"
       BackgroundColor="White"
       HasUnevenRows="True">  
       <ListView.ItemTemplate>
           <DataTemplate>
                 <ViewCell>
                       <ViewCell.View>
                            <StackLayout 
                                  HorizontalOptions="FillAndExpand"
                                  VerticalOptions="FillAndExpand"
                                  Margin="5"
                                  Padding="5"
                                  Orientation="Horizontal">

                                  <Label 
                                        Text="{Binding name}"
                                        Font="17" 
                                        TextColor="#474747"
                                        HorizontalOptions="Start" 
                                         VerticalOptions="Center"/>

                                   <Picker 
                                         HorizontalOptions="EndAndExpand"
                                         Margin="0,0,20,0"
                                         SelectedItem="{Binding status}"
                                         SelectedIndexChanged="AttendanceStatus"
                                         WidthRequest="100"
                                         VerticalOptions="CenterAndExpand"
                                         TextColor="#5abcd7"  
                                         HeightRequest="50">
                                         <Picker.ItemsSource>
                                              <x:Array Type="{x:Type x:String}">
                                                  <x:String>Present</x:String>
                                                  <x:String>Half Day</x:String>
                                                  <x:String>Absent</x:String>
                                                </x:Array>
                                           </Picker.ItemsSource>
                                     </Picker>
                             </StackLayout>
                         </ViewCell.View>
                     </ViewCell>
                  </DataTemplate>
               </ListView.ItemTemplate>
            </ListView>

有人能建议一种在listview中捕获所选选取项的方法吗

---

提前感谢：）

选取者的

ItemSource

是一个

列表

，因此您不能将其转换为

cbrainedancehblist

。但是，选择器的

BindingContext

应该是该行的

cbraineAttendancehBlist

var picker = sender as Picker;
var selectedItem = picker.BindingContext as cbrainAttendanceHBList;

---

选择器的

项源

是一个

列表

，因此不能将其转换为

cbraineAttendancehBlist

。但是，选择器的

BindingContext

应该是该行的

cbraineAttendancehBlist

var picker = sender as Picker;
var selectedItem = picker.BindingContext as cbrainAttendanceHBList;

var picker = sender as Picker;
var selectedItem = picker.BindingContext as cbrainAttendanceHBList;