在WPF中实现CheckBoxes的ListBox

Question

事先道歉,因为我知道这个问题多次出现过.但是,我正在努力找出我自己的代码出错的地方.只需查找旁边的复选框和名称列表.目前它编译好,但ListBox为空.

所有代码都在一个名为ucDatabases的控件中.

XAML:

<ListBox Grid.Row="4" ItemsSource="{Binding Databases}">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <CheckBox Content="{Binding Name}" IsChecked="{Binding IsChecked}" Margin="5 5 0 0"/>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>

C#代码:

  public ObservableCollection<CheckBoxDatabase> Databases;

public class CheckBoxDatabase : INotifyPropertyChanged
        {
            private string name;
            private bool isChecked;
            public Database Database;

            public bool IsChecked
            {
                get { return isChecked; }
                set
                {
                    isChecked = value;
                    NotifyPropertyChanged("IsChecked");
                }
            }

            public string Name
            {
                get { return name; }
                set
                {
                    name = value;
                    NotifyPropertyChanged("Name");
                }
            }

            public event PropertyChangedEventHandler PropertyChanged;
            protected void NotifyPropertyChanged(string strPropertyName)
            {
                if (PropertyChanged != null)
                    PropertyChanged(this, new PropertyChangedEventArgs(strPropertyName));
            }
        }

帮助方法填充一些测试数据:

private void SetTestData()
    {
        const string dbAlias = "Database ";
        Databases = new ObservableCollection<CheckBoxDatabase>();
        for (int i = 0; i <= 4; i++)
        {
            var db = new Database(string.Format(dbAlias + "{0}", i));
            var newCBDB = new CheckBoxDatabase {Database = db, IsChecked = false, Name = db.Name};

            Databases.Add(newCBDB);
        }
    }

建议和解决方案将不胜感激!

Answer 1

public ObservableCollection<CheckBoxDatabase> Databases; 是一个领域.

您应该用属性替换它:

public ObservableCollection<CheckBoxDatabase> Databases {get;set;};

别忘了INotifyPropertyChanged!