WPF绑定,后台数据已更新,但前台数据未刷新

1.后台模型类(一般定义主窗口类MainWindow的后台模型类MainWindowModel)中增加命令空间引用using System.ComponentModel;

2.修改类MainWindowModel继承INotifyPropertyChanged,定义事件PropertyChanged;

3.修改被前台绑定的属性set值。

具体参见如下代码:

public class MainWindowModel:INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;
        #region MES状态
        private string _MESState = "离线";
        /// <summary>
        ///
        /// </summary>
        public string MESState
        {
            get { return _MESState; }
            set
            {
                if (_MESState != value)
                     _MESState= value;
                PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("MESState"));
            }
        }
        #endregion

posted @ 2020-10-13 14:56  塞北的雪,江南的雨  阅读(65)  评论(0编辑  收藏