Question

我正在创建一个像这样的列表框（devexpress control）

 <dxe:ListBoxEdit x:Name="lstBoxFeatures" DisplayMember="Description" ValueMember="FeatureId" SelectionMode="Multiple"
                                 ItemsSource="{Binding Path=DataContext.Features, RelativeSource={RelativeSource AncestorType=Window}}" Height="320"                                     
                                 EditValue="{Binding Path=DataContext.SelectedFeatures, RelativeSource={RelativeSource AncestorType=Window}}"
                                 >
                    <dxe:ListBoxEdit.StyleSettings>
                        <dxe:CheckedListBoxEditStyleSettings  />    
                    </dxe:ListBoxEdit.StyleSettings>                                                  
                </dxe:ListBoxEdit>

我有观点，我这样填写我填写这样的值（使用功能列表）

_CustomerLicense.Features = GetFeatureList(SelectedLicense.Product.ProductId);
_CustomerLicense.SelectedFeatures =_CustomerLicense.Features.Where(x => FeaturesIds.Contains(x.FeatureId)).ToList();

我获得功能列表的过程

   private List<Feature> GetFeatureList(Project.Common.Domain.ProductEnum ProductID )
    {
        var Res = new List<Feature>();
        var Features = new LicenseService().GetFeatures(ProductID);
        Features.ForEach((x)=> {
            Res.Add(new Feature(x));
        });
        return Res;
    }

我有这样的观点

 public List<Feature> Features
    {
        get { return _Features;}
        set
        {
            _Features = value;
            this.NotifyPropertyChanged("Features");
        }
    }     

    public List<Feature> SelectedFeatures
    {
        get { return _SelectedFeatures; }
        set
        {
            _SelectedFeatures = value;
            NotifyPropertyChanged("SelectedFeatures");
        }
    }

当我运行应用程序时，它会设置值，列表框中会填充列表中的所有配置，但不会选中所选的功能。此致

Answer 1

尝试将for i,rowData in df.iterrows(): i = i-1 j = i/2 df['NewCol'].iloc[i] = abc[j]声明为对象列表（您还需要更改SelectedFeatures）：

_SelectedFeatures

并更改此行：

public List<object> SelectedFeatures
{
    get { return _SelectedFeatures; }
    set
    {
        _SelectedFeatures = value;
        NotifyPropertyChanged("SelectedFeatures");
    }
}

Answer 2

SelectedFeatures集合应包含Feature集合中Features个实例的子集。试试这个：

var features = GetFeatureList(SelectedLicense.Product.ProductId);
_CustomerLicense.Features = features;

var selectedFeatureIds = _CustomerLicense.Features.Where(x => FeaturesIds.Contains(x.FeatureId)).Select(x => x.FeatureId).ToList();
_CustomerLicense.SelectedFeatures = features.Where(x => selectedFeatureIds.Contains(x.FeatureId)).ToList();

dxe：listbox不检查项目

2 个答案: