我有一个WPF数据网格与一个组合框和两个文本框列。在我的测试案例中,加载屏幕时,网格绑定到的集合中有两行。如果我更改任何单元格的内容,它会正确更新。但是,如果向网格添加新行,当更新组合框列中的值时,它不会在源集合中更新。尽管如此,文本框列对新添加的行仍然适用。该列被定义为这样的:WPF DataGrid ComboBoxColumn不插入值
<DataGrid.Columns>
<DataGridComboBoxColumn Header="Type" Width="*" SelectedValueBinding="{Binding Mode=TwoWay, Path=Type.Id}"
ItemsSource="{Binding Source={StaticResource PhoneTypeList}, Path=PhoneTypes}"
SelectedValuePath="Id" DisplayMemberPath="Type" />
<DataGridTextColumn Binding="{Binding NotifyOnTargetUpdated=True, Path=Number, Mode=TwoWay, ValidatesOnExceptions=False}" Header="Number" Width="*"/>
<DataGridTextColumn Binding="{Binding NotifyOnSourceUpdated=True, Path=Extension, ValidatesOnExceptions=False}" Header="Extension" Width="*"/>
</DataGrid.Columns>
这里是我的视图模型的PHONENUMBERS属性:
public ObservableCollection<PhoneNumber> PhoneNumbers
{
get
{
return _phoneNumbers;
}
set
{
if (value != _phoneNumbers)
{
_phoneNumbers = value;
OnPropertyChanged("PhoneNumbers");
}
}
}
更新:这是我的******中国类:
public class PhoneNumber : INotifyPropertyChanged
{
private string _number;
private string _extension;
private PhoneType _type;
public PhoneType Type { get { return _type; }
set { _type = value; OnPropertyChanged("Type"); } }
public string Number
{
set
{
_number = value;
OnPropertyChanged("Number");
}
get { return _number; }
}
public string Extension
{
set
{
_extension = value;
OnPropertyChanged("Extension");
}
get { return _extension; }
}
public override string ToString()
{
return Number + (!string.IsNullOrEmpty(Extension) ? " x " + Extension : "");
}
public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;
private void OnPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
PropertyChanged(this,
new System.ComponentModel.PropertyChangedEventArgs(propertyName));
}
}
是什么你PhoneNumberType样子? – bendewey 2011-04-25 15:26:43
更新,以显示电话号码类 – drowned 2011-04-25 15:39:15