Devexpress datagrid动态添加显示指定列的gridView

  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;