WPF ObservableCollection正在更新DataGrid MVVM

Question

我正在尝试在DataGrid中反映ObservableCollection的更改。我的问题是，当我在集合中添加新元素时，DataGrid不会显示更改——DataGrid中没有新行。这是绑定到Window 的ViewModel类

public class MainWindowViewModel : INotifyPropertyChanged
{
private ObservableCollection<Configuration> configuration;
public MainWindowViewModel()
{
configuration = new ObservableCollection<Model.Configuration>();
} 
public ObservableCollection<Configuration> Configuration { 
get { return configuration; } 
set { configuration = value; 
OnProperyChanged("Configuration"); 
}}
#region INotifyPropertyChanged Members
public event PropertyChangedEventHandler PropertyChanged;
private void OnProperyChanged(string propertyChanged)
{
PropertyChangedEventHandler handler = PropertyChanged;
if (handler != null)
{
handler(this, new PropertyChangedEventArgs(propertyChanged));
}
}
#endregion}

我的DataGrid是

<DataGrid x:Name="maintable" IsReadOnly="True" ItemsSource="{Binding Configuration}" CanUserAddRows="False" AutoGenerateColumns="False" Height="180" Margin="10,61,391,0" VerticalAlignment="Top">
<DataGrid.Columns>
<DataGridTextColumn Header="ID" Binding="{Binding Id}"/>
<DataGridTextColumn Header="Name" Binding="{Binding Name}"/>
<DataGridTextColumn Header="Price" Binding="{Binding Price}"/>
<DataGridTextColumn Header="Description" Width="300"  Binding="{Binding Description}"/>

Answer 1

由于DataGridItemsSource中的某些原因，需要添加Mode=OneWay，现在当ObservableCollection更改时，DataGrid正在更新

<DataGrid x:Name="maintable" IsReadOnly="True" ItemsSource="{Binding Configuration, Mode=OneWay}" CanUserAddRows="False" AutoGenerateColumns="False" Height="180" Margin="10,61,391,0" VerticalAlignment="Top">
<DataGrid.Columns>
<DataGridTextColumn Header="ID" Binding="{Binding Id}"/>
<DataGridTextColumn Header="Name" Binding="{Binding Name}"/>
<DataGridTextColumn Header="Price" Binding="{Binding Price}"/>
<DataGridTextColumn Header="Description" Width="300"  Binding="{Binding Description}"/>