我有一個WPF數據網格與一個組合框和兩個文本框列。在我的測試案例中,加載屏幕時,網格綁定到的集合中有兩行。如果我更改任何單元格的內容,它會正確更新。但是,如果向網格添加新行,當更新組合框列中的值時,它不會在源集合中更新。儘管如此,文本框列對新添加的行仍然適用。該列被定義爲這樣的: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>
這裏是我的視圖模型的PHONENUMBERS屬性:
public ObservableCollection<PhoneNumber> PhoneNumbers
{
get
{
return _phoneNumbers;
}
set
{
if (value != _phoneNumbers)
{
_phoneNumbers = value;
OnPropertyChanged("PhoneNumbers");
}
}
}
更新:這是我的******中國類:
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));
}
}
是什麼你PhoneNumberType樣子? – bendewey 2011-04-25 15:26:43
更新,以顯示電話號碼類 – drowned 2011-04-25 15:39:15