如何获得Xtragrid过滤和排序的数据源？ [英] how to get the xtragrid filtered and sorted datasource?

问题描述

我有一个绑定到bindingSource的xtraGrid控件（v12.1），这最后一个数据是从LINQ到实体查询（EF4.3.1）获取的，最终用户可以对gridView进行过滤和排序，我有一个Stimulsoft报告当用户单击PrintListButton时，该视图显示gridView的内容，如何将xtragrid过滤和排序的数据源添加到报表中？
谢谢。

I have an xtraGrid control (v12.1) binded to a bindingSource, this last gets its data from a LINQ to entities query (EF4.3.1), the end user can filter and sort the gridView, I have a Stimulsoft report that shows the content of the gridView when the user clicks on a PrintListButton, how to get the xtragrid filtered and sorted datasource, in order to attach it to the report? Thanks.

推荐答案

var data = GetDataView(xtraGridControl1);
report.RegData("List", data.ToTable());


        public DataView GetDataView(GridControl gc)
        {
            DataView dv = null;

            if (gc.FocusedView != null && gc.FocusedView.DataSource != null)
            {
                var view = (ColumnView)gc.FocusedView;
                var currentList = listBindingSource.List.CopyToDataTable().DefaultView; //(DataView)

                var filterExpression = GetFilterExpression(view);
                var sortExpression = GetSortExpression(view);

                var currentFilter = currentList.RowFilter;

                //create a new data view 
                dv = new DataView(currentList.Table) {Sort = sortExpression};

                if (filterExpression != String.Empty)
                {
                    if (currentFilter != String.Empty)
                    {
                        currentFilter += " AND ";
                    }
                    currentFilter += filterExpression;
                }
                dv.RowFilter = currentFilter;
            }
            return dv;
        }

        public string GetFilterExpression(ColumnView view)
        {
            var expression = String.Empty;

            if (view.ActiveFilter != null && view.ActiveFilterEnabled
                          && view.ActiveFilter.Expression != String.Empty)
            {
                expression = view.ActiveFilter.Expression;
            }
            return expression;
        }

        public string GetSortExpression(ColumnView view)
        {
            var expression = String.Empty;
            foreach (GridColumnSortInfo info in view.SortInfo)
            {
                expression += string.Format("[{0}]", info.Column.FieldName);

                if (info.SortOrder == DevExpress.Data.ColumnSortOrder.Descending)
                    expression += " DESC";
                else
                    expression += " ASC";
                expression += ", ";
            }
            return expression.TrimEnd(',', ' ');
        }

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