C# WinForm 自定義控件綁定屬性DataBindings

https://www.cnblogs.com/jizhongfong/p/4384689.html

 

var bind = new Binding("Enabled", OrderViewModel.Instance.Commands.ThreadManager, "IsRunning"); bind.Format += delegate(object o, ConvertEventArgs args) { args.Value = !((bool) args.Value); }; button1.DataBindings.Add(bind);


  var bind = new Binding("Text", Query, "IsValid");
            bind.Format += delegate (object o, ConvertEventArgs args) 
            {
                if (Query.WhereIsValid)
                {
                    args.Value = ((bool)args.Value ? "是" : "否");
                }
                else
                {
                    args.Value = "[不限-All]";
                }
                
            };
            com_Valid.DataBindings.Add(bind);

 /// <summary>
        /// 將綁定數據源和控件綁定
        /// </summary>
        /// <param name="ctl">控件</param>
        /// <param name="propertyName">屬性名稱</param>
        /// <param name="BindingSource">數據源</param>
        /// <param name="fieldName">綁定字段</param>
        public static void SetDataBinding(this System.Windows.Forms.Control ctl, string propertyName, object BindingSource, string fieldName)
        {
            if (ctl.DataBindings[propertyName] != null) { ctl.DataBindings.Remove(ctl.DataBindings[propertyName]); }
            ctl.DataBindings.Add(propertyName, BindingSource, fieldName, true, DataSourceUpdateMode.OnPropertyChanged);
        }

        public static void RemoveDataBinding(this System.Windows.Forms.Control ctl, string propertyName)
        {
            if (ctl.DataBindings[propertyName] != null) { ctl.DataBindings.Remove(ctl.DataBindings[propertyName]); }
        }