/// <summary>
        /// 将绑定数据源和控件绑定
        /// </summary>
        /// <param name="ctl">控件</param>
        /// <param name="propertyName">属性名称</param>
        /// <param name="BindingSource">数据源</param>
        /// <param name="fieldName">绑定字段</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);
        }
        /// <summary>
        /// 移除绑定属性
        /// </summary>
        /// <param name="ctl"></param>
        /// <param name="propertyName"></param>
        public static void RemoveDataBinding(this System.Windows.Forms.Control ctl, string propertyName)
        {
            if (ctl.DataBindings[propertyName] != null) { ctl.DataBindings.Remove(ctl.DataBindings[propertyName]); }
        }