我正在开发一个Windows手机应用程序,我需要显示一个页面作为登录人员的Coletors列表,但它没有显示在页面中,我不知道为什么。我尝试以不同的方式编写代码,但它仍然不起作用。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Navigation;
using Microsoft.Phone.Controls;
using Microsoft.Phone.Shell;
using System.Data.Linq;
using System.Collections.ObjectModel;
using System.ComponentModel;
namespace Aplicativo_Windows_Phone
{
public partial class ColetoresPage : PhoneApplicationPage, INotifyPropertyChanged
{
AppDataContext db;
string email;
public ColetoresPage()
{
InitializeComponent();
db = new AppDataContext();
List<HyperlinkButton> listaLinks = new List<HyperlinkButton>();
int i=0;
foreach (var pessoa in db.Pessoas)
{
if (pessoa.Email == email)
{
foreach (var coletor in pessoa.Coletores)
{
HyperlinkButton aux = new HyperlinkButton();
aux.Content = "Coletor " + (i + 1).ToString();
aux.FontSize = 24;
aux.NavigateUri = new Uri("/OcorrenciasPage.xaml?coletorId=" + coletor.Id, UriKind.RelativeOrAbsolute);
listaLinks.Add(aux);
i++;
}
}
}
ListBox coletores = new ListBox();
coletores.ItemsSource = listaLinks;
stcList.Children.Add(coletores);
}
protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
base.OnNavigatedTo(e);
NavigationContext.QueryString.TryGetValue("email", out email);
}
protected override void OnNavigatedFrom(System.Windows.Navigation.NavigationEventArgs e)
{
base.OnNavigatedFrom(e);
}
public event PropertyChangedEventHandler PropertyChanged;
private void NotifyPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
private void btnAdd_Click_1(object sender, RoutedEventArgs e)
{
NavigationService.Navigate(new Uri("/AddColetor.xaml?email=" + email, UriKind.RelativeOrAbsolute));
}
}
}
Tha xaml代码:
<phone:PhoneApplicationPage
x:Class="Aplicativo_Windows_Phone.ColetoresPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}"
SupportedOrientations="Portrait" Orientation="Portrait"
mc:Ignorable="d"
shell:SystemTray.IsVisible="True">
<!--LayoutRoot is the root grid where all page content is placed-->
<Grid x:Name="LayoutRoot" Background="Transparent">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<!--TitlePanel contains the name of the application and page title-->
<StackPanel Grid.Row="0" Margin="12,17,0,28">
<TextBlock Text="MY APPLICATION" Style="{StaticResource PhoneTextNormalStyle}"/>
<TextBlock Text="coletores" Margin="9,-7,167,0" Style="{StaticResource PhoneTextTitle1Style}"/>
</StackPanel>
<!--ContentPanel - place additional content here-->
<Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
<Grid>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition Height="80"/>
</Grid.RowDefinitions>
<StackPanel Grid.Row="0" Name="stcList">
</StackPanel>
<Button Name="btnAdd" Content="Adicionar" Click="btnAdd_Click_1" Grid.Row="1"/>
</Grid>
</Grid>
</Grid>
</phone:PhoneApplicationPage>