我有一个绑定到已定义类型的 ObservableCollection 的 Telerik RadGridView。在更新该类型中特定属性的值时,相应的 Observable 集合正在更新,但不是 RadGridView ..
下面是 XAML:
<ComboBox Grid.Column="4" Width="100" Margin="4" ItemsSource="{Binding Path=ResultUnits, Mode=OneTime}" SelectedValue="{Binding Path=ResultUnit}"/>
<telerik:RadGridView ItemsSource="{Binding Path=Results, Mode=TwoWay}" FooterRowStyle="{StaticResource GridViewFooterStyle}" Width="{Binding RelativeSource={RelativeSource AncestorType= ScrollViewer}, Path=ActualWidth}" ColumnWidth="*" RowIndicatorVisibility="Collapsed" EditTriggers="None" IsFilteringAllowed="False" AutoGenerateColumns="False" AllowDrop="False" CanUserFreezeColumns="False" CanUserReorderColumns="False" CanUserDeleteRows="False" CanUserInsertRows="False" ShowGroupPanel="False" ShowColumnFooters="True">
<telerik:RadGridView.Columns>
<telerik:GridViewDataColumn Header="Quantity" DataMemberBinding="{Binding Path=Quantity}"/>
</telerik:RadGridView.Columns>
</telerik:RadGridView>
以下是查看模型代码:
public class ViewModel {
private const decimal PoundsToKilograms = 0.45359237M;
private const decimal GramstoPound = 0.00220462262M;
private ObservableCollection<Result> results;
public EnvironmentalSummaryViewModel() {
this.results= new ObservableCollection<Result>();
}
public ObservableCollection<Result> Results{
get {
return this.results;
}
set {
this.results = value;
}
}
public string ResultUnit {
get {
return this.resultUnit;
}
set {
if (this.resultUnit != value) {
this.resultUnit = value;
this.UpdateGridViewValuesOnResultUnitChanged();
}
}
}
private void UpdateGridViewValuesOnResultUnitChanged() {
bool isEnglish = this.resultUnit == this.resultUnits[0];
this.results.ToList().ForEach(result => {
decimal weight = isEnglish ? result.Weight * GramstoPound * 1000 : environmental.Weight * PoundsToKilograms;
result.Weight = Math.Round(weight, 2);
});
((IHaveOnPropertyChangedMethod) this).OnPropertyChanged("Results");
}
}
对象等级:
public class Result{
public decimal Weight { get; set; }
}