6
我试图创建势必ObservableCollection
LoggedInUser
的绑定用户控件栈面板可观察集合在WPF
的用户控件栈面板的联系人列表中的用户控件:
<UserControl.Content>
<Grid>
<Border BorderBrush="LightBlue" BorderThickness="1,1,1,1" CornerRadius="8,8,8,8" Height="350" HorizontalAlignment="Left" VerticalAlignment="Top" Width="290">
<ItemsControl x:Name="tStack" Grid.Column="0">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate>
<Button Height="30" Content="{Binding Username}"/>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</Border>
</Grid>
</UserControl.Content>
用户控制代码背后
public partial class ContactList : UserControl
{
public ContactList()
{
InitializeComponent();
ContactListViewModel clvm = ContactListViewModel.GetInstance();
clvm.Contacts.Add(new LoggedInUser("test", "123"));
this.DataContext = clvm.Contacts;
}
}
而且我ContactListViewModel
class ContactListViewModel
{
private static ContactListViewModel instance;
public ObservableCollection<LoggedInUser> Contacts = new ObservableCollection<LoggedInUser>();
public static ContactListViewModel GetInstance()
{
if (instance == null)
instance = new ContactListViewModel();
return instance;
}
}
LoggedInUser
类,以防万一
public class LoggedInUser
{
private string username;
public string Username
{
get { return username; }
set { username = value; }
}
}
我堆栈面板仍然是空的!帮帮我!
你使用的是WPF还是Silverlight? – Bernard 2012-07-26 18:19:00
我只问了6个问题,从来没有得到满意的答案。也许这将是一个!另外,编辑提到WPF的问题。 – Julien 2012-07-26 18:21:49
您还没有将ItemsControl的ItemsSource属性绑定到viewModel的Contact属性。做到这一点,然后代替'this.DataContext = clvm.Contacts;'写出'this.DataContext = clvm; ' – Dante 2012-07-26 18:28:27