Question

我能够检索数据。但是我不能将这些数据绑定到我的列表框中。

XAML文件代码

<ListBox Grid.Row="1" Height="Auto" HorizontalAlignment="Left" Margin="12,140,0,0" Name="lb_AllActivity" VerticalAlignment="Top" Width="Auto" FontFamily="Tahoma" FontSize="25">
                    <ListBox.ItemTemplate>
                        <DataTemplate>
                            <Grid>
                                <Border Margin="3">
                                    <StackPanel Background="Transparent" Orientation="Vertical" Width="420" Height="60">
                                        <StackPanel Background="Transparent" Orientation="Horizontal" Width="420" Height="60">
                                            <TextBlock Foreground="White" HorizontalAlignment="Left" TextWrapping="Wrap" VerticalAlignment="Center" Text="{Binding DateTime}"></TextBlock>
                                            <TextBlock Foreground="White" HorizontalAlignment="Left" TextWrapping="Wrap" VerticalAlignment="Center" Text="{Binding Amt}"></TextBlock>
                                            <TextBlock Foreground="White" HorizontalAlignment="Left" TextWrapping="Wrap" VerticalAlignment="Center" Text="{Binding Msg}"></TextBlock>                    
                                        </StackPanel>
                                    </StackPanel>
                                </Border>
                            </Grid>
                        </DataTemplate>
                    </ListBox.ItemTemplate>
                </ListBox>

我的CS FIle中有以下代码

public partial class Activities : PhoneApplicationPage
    {
        DatabaseService.ServiceSoapClient dbService = new DatabaseService.ServiceSoapClient();


        public Activities()
        {
            InitializeComponent();
            InitializeComponent();
            dbService.getAllActivityAsync("Russell Loh");
            dbService.getAllActivityCompleted += new EventHandler<DatabaseService.getAllActivityCompletedEventArgs>(dbService_getAllActivity);

        }

        public class AllActivity 
        {
            public string TransID { get; set; }
            public string Amt { get; set; }
            public string Cat { get; set; }
            public string SharedNo { get; set; }
            public string Msg { get; set; }
            public string DateTime { get; set; }
        }

        void dbService_getAllActivity(object sender, DatabaseService.getAllActivityCompletedEventArgs e)
        {

            if (e.Error == null)
            {
                string result = e.Result;
                string[] arrayActivity = result.Split('~');

                string[] transID = arrayActivity[0].Split('#');
                string[] amount = arrayActivity[1].Split('#');
                string[] category = arrayActivity[2].Split('#');
                string[] sharedNum = arrayActivity[3].Split('#');
                string[] message = arrayActivity[4].Split('#');
                string[] dateTime = arrayActivity[5].Split('#');

                List<String> Activitylist = new List<String>();

                for (int i = 0; i < transID.Length; i++)
                {
                    string TransID = transID[i];
                    string Amt = amount[i];
                    string Cat = category[i];
                    string SharedNo = sharedNum[i];
                    string Msg = message[i];
                    string DateTime = dateTime[i];


                    //Activitylist.Add(DateTime + "  $" + Amt);
                    Activitylist.Add(DateTime);
                    Activitylist.Add(Msg);
                    Activitylist.Add(Amt);

                }

               lb_AllActivity.ItemsSource = Activitylist;

            }

          }

Answer 1

虽然我不是100％肯定你在这里想做什么，但我认为......

您没有正确填充ActivityList或ItemsSource ListBox

           for (int i = 0; i < transID.Length; i++)
                {
                    string TransID = transID[i];
                    string Amt = amount[i];
                    string Cat = category[i];
                    string SharedNo = sharedNum[i];
                    string Msg = message[i];
                    string DateTime = dateTime[i];

                    //create a new instance of activity             
                    AllActivity activity = new AllActivity();  
                    activity.Amt = Amt; 
                    activity.Msg = Msg; 
                    activity.DateTime = DateTime;                    

                    ActivityList.Add(activity);
                }

从Webservice检索数据并在列表框中显示它们

1 个答案: