在 WPF 的 DataGrid 控件中,如果将列设置为默认列类型之一(如 DataGridTextColumn 或 DataGridCheckBoxColumn),对该列进行排序,然后更改其值,网格将自动重新排序。
但是,如果您使用 DataGridTemplateColumn(并允许对列进行排序),则可以对其进行排序,但是更改此列中单元格的值不会导致网格不重新排序。我怎样才能哄它自动触发重新排序?
XAML:
<DataGrid Name="grid" AutoGenerateColumns="False">
<DataGrid.Columns>
<DataGridTextColumn Header="First name" Binding="{Binding First}"/>
<DataGridTemplateColumn Header="Last name" SortMemberPath="Last">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<TextBox Text="{Binding Last}"/>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
</DataGrid.Columns>
</DataGrid>
捆绑:
ObservableCollection items = new ObservableCollection();
grid.ItemsSource = items;
items.Add(new Character() { First = "Homer", Last = "Simpson" });
items.Add(new Character() { First = "Kent", Last = "Brockman" });
items.Add(new Character() { First = "Montgomery", Last = "Burns" });
这是我的项目类,以防万一:
public class Character : INotifyPropertyChanged {
private string first, last;
public event PropertyChangedEventHandler PropertyChanged;
private void Notify(string name) {
if (PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs(name));
}
public string First { get { return first; } set { first = value; Notify("First"); } }
public string Last { get { return last; } set { last = value; Notify("Last"); } }
}