Question

编辑：这是一个Windows应用商店（8.1）应用程序

我有一个人类，如下所示我用作模型

public class Person : BaseModel
    {
        private string _FirstName;
        public string FirstName
        {
            get { return _FirstName; }
            set
            {
                if (_FirstName == value)
                    return;

                _FirstName = value;
                RaisePropertyChanged("FirstName");
            }
        }

        private string _MiddleName;
        public string MiddleName
        {
            get { return _MiddleName; }
            set
            {
                if (_MiddleName == value)
                    return;

                _MiddleName = value;
                RaisePropertyChanged("MiddleName");
            }
        }

        private string _LastName;
        public string LastName
        {
            get { return _LastName; }
            set
            {
                if (_LastName == value)
                    return;

                _LastName = value;
                RaisePropertyChanged("LastName");
            }
        }
    }

其中BaseModel定义如下

using GalaSoft.MvvmLight;
public class BaseModel: ObservableObject
{
}

我在ViewModel类中使用Model，如下所示。

using GalaSoft.MvvmLight;
public class PersonViewModel : ViewModelBase
    {

        /// <summary>
        /// List of searched People
        /// </summary>
        private ObservableCollection<Person> _People;
        public ObservableCollection<Person> People
        {
            get { return _People; }
            set
            {
                if (_People== value)
                    return;
                _People= value;
                RaisePropertyChanged("People");
            }
        }
}

我将People集合绑定到GridView，如下所示。

<GridView
                        x:Name="PeopleSearchResultsGridView"
                        ItemsSource="{Binding People}">
                    </GridView>

搜索完成后，我会返回一个人员列表，我将其添加到列表中，如下所示。

var list = await p.SearchPeople();
People = new ObservableCollection<Person>(list);

我看到People集合的setter正在触发，而RaisePropertyChanged（“People”）事件也在触发，但是没有更新GridView。谁能告诉我这里有什么问题？

XAML Gridview不在RaisePropertyChanged上重新绑定

0 个答案: