我有以下XAML
echo哪个绑定到我的<Label Content="Player Name" Grid.Row="0" Grid.Column="0" Margin="2,0,2,0" HorizontalAlignment="Right" Foreground="White"/>
<TextBox Grid.Row="0" Grid.Column="1" Margin="2,2,2,2" Text="{Binding PlayerFirstName}"/>
<Label Content="Player Last Name" Grid.Row="1" Grid.Column="0" Margin="2,0,2,0" HorizontalAlignment="Right" Foreground="White"/>
<TextBox Grid.Row="1" Grid.Column="1" Margin="2,2,2,2" Text="{Binding PlayerLastName}"/>
<Label Content="Player College" Grid.Row="2" Grid.Column="0" Margin="2,0,2,0" HorizontalAlignment="Right" Foreground="White"/>
<ComboBox Grid.Row="2" Grid.Column="1" Margin="2,2,2,2"
ItemsSource="{Binding Colleges}" DisplayMemberPath="CollegeName"
SelectedItem="{Binding SelectedCollege}"/>
<Button Content="Add Player" Grid.Row="3" Grid.Column="1" Width="75" Margin="2,2,2,2"
Background="Blue" Foreground="White" HorizontalAlignment="Right"
Command="{Binding NewPlayer}"/>
<ListView Grid.Row="4" Grid.Column="1" Grid.ColumnSpan="1" Margin="2,2,2,2"
ItemsSource="{Binding Players, UpdateSourceTrigger=PropertyChanged}">
<ListView.View>
<GridView>
<GridViewColumn Header="First Name" Width="100" DisplayMemberBinding="{Binding First}"/>
<GridViewColumn Header="Last Name" Width="100" DisplayMemberBinding="{Binding Last}"/>
<GridViewColumn Header="College" Width="100" DisplayMemberBinding="{Binding College}"/>
</GridView>
</ListView.View>
</ListView>
类
PlayersViewModel这一切都很有效，除非我在PersonTableAdapter中运行public class PlayersViewModel : ObservableObject
{
#region Variables
private DataView _Players = Controller.PlayerView.GetData().DefaultView;
private DataView _Colleges = Controller.CollegeTableAdapter.GetData().DefaultView;
private string _PlayerFirstName;
private string _PlayerLastName;
private DataRowView _SelectedCollege;
private long _PlayerCollegeID;
#endregion
#region Bindings
public DataView Players
{
get
{
return _Players;
}
set
{
_Players = value;
RaisePropertyChangedEvent("Players");
}
}
public DataView Colleges
{
get { return _Colleges; }
set
{
_Colleges = value;
RaisePropertyChangedEvent("Colleges");
}
}
public string PlayerFirstName
{
get { return _PlayerFirstName; }
set
{
_PlayerFirstName = value;
RaisePropertyChangedEvent("PlayerFirstName");
}
}
public string PlayerLastName
{
get { return _PlayerLastName; }
set
{
_PlayerLastName = value;
RaisePropertyChangedEvent("PlayerLastName");
}
}
public DataRowView SelectedCollege
{
get { return _SelectedCollege; }
set
{
_SelectedCollege = value;
_PlayerCollegeID = _SelectedCollege.Row.Field<long>("CollegeID");
RaisePropertyChangedEvent("SelectedCollege");
}
}
public ICommand NewPlayer
{
get { return new DelegateCommand(AddPlayer); }
}
#endregion
#region Methods
private void AddPlayer()
{
Controller.PersonTableAdapter.InsertPerson(_PlayerFirstName, _PlayerLastName, _PlayerCollegeID);
Players = Controller.PlayerView.GetData().DefaultView;
}
#endregion
}
查询（手动工作并且我已经证明可以从程序中运行），InsertPerson ListView不会更新添加新条目。
答案 0 :(得分：0)
我发现了我做错了什么。
始终确保您在INotifyPropertyChanged班级
ObservableObject界面
我现在看起来像这样：
public abstract class ObservableObject : INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
protected void RaisePropertyChangedEvent(string propertyName)
{
var handler = PropertyChanged;
if (handler != null)
handler(this, new PropertyChangedEventArgs(propertyName));
}
}