protected override object GetSelectedItem(object selectedItem, object contextInstance)
        {
            MB.Util.Model.CodeNameInfo colInfo       = selectedItem as MB.Util.Model.CodeNameInfo;
            XtraStyleConditionInfo     conditionInfo = contextInstance as XtraStyleConditionInfo;

            conditionInfo.ColumnName = colInfo.CODE;
            return(colInfo.NAME);
        }
        /// <summary>
        /// 加载选择的列信息。
        /// </summary>
        /// <param name="lstBox"></param>
        /// <param name="contextInstance"></param>
        protected override void AddDataToList(System.Windows.Forms.ListBox lstBox, object contextInstance)
        {
            if (contextInstance == null)
            {
                return;
            }

            XtraStyleConditionInfo conditionInfo = contextInstance as XtraStyleConditionInfo;

            DevExpress.XtraGrid.Views.Grid.GridView gridView = conditionInfo.Tag as DevExpress.XtraGrid.Views.Grid.GridView;


            lstBox.Items.Clear();
            foreach (DevExpress.XtraGrid.Columns.GridColumn colInfo in gridView.Columns)
            {
                MB.Util.Model.CodeNameInfo codeName = new MB.Util.Model.CodeNameInfo(colInfo.FieldName, colInfo.Caption);
                lstBox.Items.Add(codeName);
            }
        }
        /// <summary>
        /// 获取编辑框
        /// </summary>
        /// <param name="instance">XtraStyleConditionInfo实例</param>
        /// <returns>返回编辑框实例</returns>
        protected override Form GetDialog(object instance)
        {
            XtraStyleConditionInfo conditionInfo = instance as XtraStyleConditionInfo;
            GridView gridView = conditionInfo.Tag as GridView;

            StyleFormatCondition condition = null;

            foreach (StyleFormatCondition item in gridView.FormatConditions)
            {
                if (item.Tag.ToString() == conditionInfo.Name)
                {
                    condition = item;
                    break;
                }
            }

            this._form = new ConditionExpressionEditorForm(condition, null);

            return(this._form);
        }
        /// <summary>
        /// 条件样式值编辑器显示下拉框,把RepositoryItemLookUpEdit中的值显示出来
        /// </summary>
        /// <param name="lstBox"></param>
        /// <param name="contextInstance"></param>
        protected override void AddDataToList(System.Windows.Forms.ListBox lstBox, object contextInstance)
        {
            XtraStyleConditionInfo conditionInfo = contextInstance as XtraStyleConditionInfo;
            GridView gridView = conditionInfo.Tag as GridView;

            if (gridView != null)
            {
                // 条件样式中的列名
                if (!string.IsNullOrEmpty(conditionInfo.ColumnName))
                {
                    var column = gridView.Columns[conditionInfo.ColumnName];

                    lstBox.Items.Clear();

                    if (column != null)
                    {
                        if (column.ColumnEdit is RepositoryItemLookUpEdit)
                        {
                            var ddl = column.ColumnEdit as RepositoryItemLookUpEdit;

                            if (ddl.DataSource is DataView)
                            {
                                var view = ddl.DataSource as DataView;

                                foreach (DataRow row in view.Table.Rows)
                                {
                                    CodeNameInfo codeName = new CodeNameInfo(
                                        row[ddl.ValueMember].ToString(),
                                        row[ddl.DisplayMember].ToString() + "-" + row[ddl.ValueMember].ToString());
                                    lstBox.Items.Add(codeName);
                                }
                            }
                        }
                    }
                }
            }
        }