c# - ComboBox SelectedItem绑定(bind)未更新

我有点困惑:
这有效:

<StackPanel Orientation="Horizontal" HorizontalAlignment="Right">
            <Label Content="Rol" />
            <ComboBox ItemTemplate="{StaticResource listRollen}"
                      Height="23" Width="150"
                      SelectedItem="{Binding Path=SelectedRol, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}"
                      ItemsSource="{Binding Path=allRollen, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" />
        </StackPanel>

并且SelectedRol的属性是:

public TblRollen SelectedRol
    {
        get { return _selectedRol; }
        set
        {
            if (_selectedRol != value)
            {
                _selectedRol = value;
                OnPropertyChanged("SelectedRol");
            }
        }
    }

但这不起作用:

<StackPanel Orientation="Horizontal" HorizontalAlignment="Right">
            <Label Content="Soort" />
            <ComboBox ItemTemplate="{StaticResource listSoorten}"
                      Height="23" Width="150"
                      ItemsSource="{Binding Path=allSoorten}"
                      SelectedItem="{Binding Path=SelectedProduct, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"/>
        </StackPanel>

具有以下属性SelectedProduct:

public TblProduktSoorten SelectedProduct
    {
        get { return _selectedPSoort; }
        set
        {
            if (_selectedPSoort != value)
            {
                _selectedPSoort = value;
                OnPropertyChanged("SelectedProduct");
            }
        }
    }

我在代码中的某处设置了SelectedProduct = p.TblProduktSoorten，并在调试时看到该属性已正确设置...

最佳答案

DataGrid中的组合框？
如果组合框在DataGrid中，则必须添加以下内容:

Mode=TwoWay, UpdateSourceTrigger=PropertyChanged

看到这个:https://stackoverflow.com/a/5669426/16940

关于c# - ComboBox SelectedItem绑定(bind)未更新，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/6226385/