4
我在列表视图中遇到了数据绑定问题。我有两个类别: - 交易 - 基板 交易具有Substrate的属性,Transactiona保存在数据库中。在程序开始时,我想将所有事务加载为列表并在ListView中显示它们。衬底的每种可能性都应显示在组合框中,其中选择了实际的衬底。ListView中的Wpf Combobox绑定
从来就尝试过这样的 XAML
<ListView.View>
<GridView>
<GridViewColumn Header="Menge">
<GridViewColumn.CellTemplate>
<DataTemplate>
<TextBox Text="{Binding Path=Amount}" />
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
<GridViewColumn Header="Substrate">
<GridViewColumn.CellTemplate>
<DataTemplate>
<ComboBox
ItemsSource="{Binding ElementName=InternTransaction, Path=SubstrateList}"
DisplayMemberPath="Description"
SelectedValuePath="SubstrateID"
SelectedItem="{Binding Path=Substrate.SubstrateID}">
</ComboBox>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView>
</ListView.View>
代码隐藏
public partial class UCInternTransaction : UserControl
{
#region Attribute
private BsCBTTransactionController mTransactionController;
private ObservableCollection<BsCBTSubstrate> mSubstrateList;
#endregion
public UCInternTransaction()
{
InitializeComponent();
//Load Transactions
this.mTransactionController = WpfBioGas.Core.BsCAppFactory.getInstance().getCBTTransactionController();
this.mTransactionController.loadTransactions();
this.DataContext = this.mTransactionController.TransactionList;
loadData();
}
private void loadData()
{
//Load Substrate and bind to CBSubstrate
this.mSubstrateList = new ObservableCollection<BsCBTSubstrate>();
foreach (BsCBTSubstrate sub in WpfBioGas.Core.BsCAppFactory.getInstance().getBTFacade().BsBTSubstrate.loadAll())
{
this.mSubstrateList.Add(sub);
}
}
public ObservableCollection<BsCBTSubstrate> SubstrateList
{
get { return this.mSubstrateList; }
}
}
的问题是列表的所有条目显示在列表视图,并为每一行所有的可能性底物在Combobox中。但只有Listview的第一行选择了实际的Substrate。