Question

绑定时出现问题，如果我绑定字符串类型Property，一切正常，但是如果我尝试绑定，则无法上传Property xaml的对象属性。

没有任何错误或警告。

Upadated模型

型号：

     public class Part : BindableObject
{
    public int Id { get; set; }
    public string Brand { get; set; }

    public string _BrandImage;
    public string BrandImage
    {
        get { return _BrandImage; }
        set
        {
            _BrandImage = value;
            OnPropertyChanged();
        }
    }

    public string _Name;
    public string Name
    {
        get { return _Name; }
        set
        {
            _Name = value;
            OnPropertyChanged();
        }
    }
    public string Article { get; set; }
    public string Mfg { get; set; }
    public string Image { get; set; }
    public string Description { get; set; }
    public List<Offer> Offers { get; set; }   


        };

            return result;
        }

    }

ViewModel：

public class PartDetailViewModel :  BindableBase
    {
        private Part part;
        public Part Part
        {
            get { return part; }
            set { SetProperty(ref part, value); }
        }   

        public PartDetailViewModel(INavigationService navigationService) 
        {
            Part = part.GetPartById();
        }   
    }

Answer 1

您需要继承“ BindableObject”，并将要绑定到视图的属性通知给视图有关在setter“ set {}”内更改的属性。我已经在下面修改了您的“名称”属性的代码，可以根据您对其他字段的要求进行更改。

public class Part : BindableObject
{
    public int Id { get; set; }
    public string Brand { get; set; }
    public string BrandImage { get; set; }

    private string _Name;
    public string Name
    {
        get { return _Name; }
        set
        {
            _Name = value;
            OnPropertyChanged();
        }
    }
    public string Article { get; set; }
    public string Mfg { get; set; }
    public string Image { get; set; }
    public string Description { get; set; }
    public List<Offer> Offers { get; set; }
}

Answer 2

从模型和帮助中删除此属性

 public List<Offer> Offers { get; set; }

MVVM绑定对象的属性

2 个答案: