public class DXGridControlHelper    {        /// <summary>        /// 获取显示指定列的GridView        /// </summary>        /// <param name="grid"></param>        /// <param name="columns">列集合</param>        /// <returns></returns>        public static DevExpress.XtraGrid.Views.Grid.GridView GetColumnsView(DevExpress.XtraGrid.GridControl grid,          List<GridColumnModel> columns)        {            DevExpress.XtraGrid.Views.Grid.GridView view = new DevExpress.XtraGrid.Views.Grid.GridView(grid);            foreach (GridColumnModel item in columns)            {                DevExpress.XtraGrid.Columns.GridColumn column = new DevExpress.XtraGrid.Columns.GridColumn();                column.FieldName = item.DataColumnName;                column.Name = item.ColumnName;                column.Caption = item.ColumnTitle;                column.Visible = item.Visible;                view.Columns.Add(column);            }           //下面指定分组，-1 为不分组 0，1，2....为分组顺序 （add的时候指定groupindex 无效，可能为列未在视图中初始化）            for (int i = 0; i < columns.Count; i++)            {                view.Columns[i].GroupIndex =columns[i].GroupIndex;            }            return view;        }    }    /// <summary>    /// 动态创建gridView视图，列的Model    /// </summary>    public class GridColumnModel    {        /// <summary>        /// 列表头文本        /// </summary>        public string ColumnTitle { get; set; }        /// <summary>        /// 列唯一标识 name,默认为(column_sql语句中的字段名（小写）)          /// column_sqlcolumnname        /// </summary>        private string _columnName;        public string ColumnName        {            get            {                if (string.IsNullOrEmpty(_columnName))                    return "column_" + DataColumnName.ToLower();                return _columnName;            }            set { _columnName = value; }        }        /// <summary>        /// sql 语句中的字段名称        /// </summary>        public string DataColumnName { get; set; }        /// <summary>        /// 可见性，默认true        /// </summary>        private bool? _visible;        public bool Visible        {            get            {                if (_visible == null)                    return true;                return bool.Parse(_visible.ToString());            }            set            {                _visible = value;            }        }        /// <summary>        /// 分组，默认-1        /// </summary>        private int? _groupIndex;        public int GroupIndex        {            get            {                if (_groupIndex == null)                {                    _groupIndex = -1;                }                return int.Parse(_groupIndex.ToString());            }            set            {                _groupIndex = value;            }        }    }

 var view2 = DXGridControlHelper.GetColumnsView(gridControl1, new List<ColumnModel>() {                         new ColumnModel(){ColumnTitle="ID",DataColumnName="Id"},//默认该列为显示，列名为column_id                        new ColumnModel(){ColumnTitle="课件名称",GroupIndex=0,DataColumnName="Name"},//按照该列分组                        new ColumnModel(){ColumnTitle="描述",DataColumnName="Description"},                        new ColumnModel(){ColumnTitle="归属",DataColumnName="Objective"},                        new ColumnModel(){ColumnTitle="图片",ColumnName="img",DataColumnName="ImgGif",Visible=false}                    });                   DataTable tab = cl.GetDataTable("select * from table_name");                            gridControl1.MainView = view2;                   gridControl1.DataSource = tab;