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我的小项目看起来现在完全不同。现在我有ObservableCollection PackagesList数据，我想要绑定与整个DataGrid（通过绑定路径）和ObservableCollection DestinationItememsSource其中我存储DataGridComboboxColumn（作为ItemsSourceBinding）的情况。 DatagridComboboxColumn中的SelectedItem属性是PackageInfo中的一个值（它是c的DestinationNames个案例之一）。在DatagridTextBoxColumns上绑定是可以的。ObservableCollection与INotifyPropertyChanged到DatagridComboboxColumn绑定
XAML：
<Window x:Class="test01.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="300" Width="400" Loaded="Window_Loaded">
<Grid>
<Border x:Name="mainBorder" Margin="20">
<DataGrid x:Name="mainDataGrid" x:Uid="mainDataGrid" AutoGenerateColumns="False"
AlternationCount="2" SelectionMode="Single" HorizontalAlignment="Stretch">
<DataGrid.Columns>
<DataGridTextColumn Binding="{Binding Path=id}"
Header="ID" Width="Auto" IsReadOnly="True"/>
<DataGridTextColumn Binding="{Binding Path=name}"
Header="Name" Width="Auto" IsReadOnly="True"/>
<DataGridTextColumn Binding="{Binding Path=quantity}"
Header="Quantity" Width="Auto" IsReadOnly="True"/>
<DataGridTextColumn Binding="{Binding Path=price}"
Header="Price" Width="Auto" IsReadOnly="True"/>
<DataGridComboBoxColumn ItemsSource="{Binding DestinationItemsSource}"
SelectedItemBinding="{Binding Path=destination, UpdateSourceTrigger=PropertyChanged}"
Header="Destination" Width="Auto"/>
</DataGrid.Columns>
</DataGrid>
</Border>
</Grid>
</Window>
C＃：
public class PackageInfo
{
public int id { get; set; }
public string name { get; set; }
public int quantity { get; set; }
public double price { get; set; }
public string destination { get; set; }
}
public class DestinationNames : INotifyPropertyChanged
{
public string name { get; set; }
public event PropertyChangedEventHandler PropertyChanged;
public DestinationNames(string value)
{
this.name = value;
}
public string DestinationName
{
get { return name; }
set
{
name = value;
OnPropertyChanged("DestinationName");
}
}
protected void OnPropertyChanged(string name)
{
PropertyChangedEventHandler handler = PropertyChanged;
if (handler != null)
{
handler(this, new PropertyChangedEventArgs(name));
}
}
}
public partial class MainWindow : Window
{
public ObservableCollection<DestinationNames> DestinationItememsSource { get; set; }
public ObservableCollection<PackageInfo> PackagesList { get; set; }
public MainWindow()
{
InitializeComponent();
}
public void Window_Loaded(object sender, RoutedEventArgs e)
{
LoadPackages();
}
public void LoadPackages()
{
DestinationItememsSource = new ObservableCollection<DestinationNames>();
DestinationItememsSource.Add(new DestinationNames("London"));
DestinationItememsSource.Add(new DestinationNames("Plymouth"));
DestinationItememsSource.Add(new DestinationNames("Birmingham"));
DestinationItememsSource.Add(new DestinationNames("Cambridge"));
PackagesList = new ObservableCollection<PackageInfo>();
PackagesList.Add(new PackageInfo { id = 1, name = "Potato", quantity = 3, price = 2.2, destination = "London" });
PackagesList.Add(new PackageInfo { id = 2, name = "Tomato", quantity = 5, price = 3.8, destination = "Plymouth" });
PackagesList.Add(new PackageInfo { id = 3, name = "Carrot", quantity = 1, price = 5.1, destination = "London" });
PackagesList.Add(new PackageInfo { id = 4, name = "Pea", quantity = 6, price = 1.8, destination = "Plymouth" });
PackagesList.Add(new PackageInfo { id = 5, name = "Bean", quantity = 2, price = 1.5, destination = "Birmingham" });
mainDataGrid.ItemsSource = PackagesList;
}
}
如何正确地绑定这个DatagridComboboxColumn？我应该使用INotifyCollectionChanged吗？如果我想要datagrid中的所有数据将自动与ObservableCollection同步？请帮助一些例子。