GridControl 通用导出excel

xiaoxiao2021-02-27  289

关于DevExpress Winform 的所有可打印控件的导出excel 的通用方法,并且解决DevExpress控件自带的方法存在的缺陷问题 1、解决GridControl自带方法不能导出图片; 2、GridControl 的BandGridView 多表头无法导出等问题; 3、解决PivotGridControl导出时候自动分组的问题; 4、支持多个控件一同导出同一个excel 等等

调用该方法真正做到控件的所见所得的导出功能。

/// <summary> /// DevExpress通用导出Excel,支持多个控件同时导出在同一个Sheet表 /// eg:ExportToXlsx("",gridControl1,gridControl2); /// 将gridControl1和gridControl2的数据一同导出到同一张工作表 /// </summary> /// <param name="title">文件名</param> /// <param name="panels">控件集</param> public void ExportToExcel(string title, params IPrintable[] panels) { SaveFileDialog saveFileDialog = new SaveFileDialog(); saveFileDialog.FileName = title; saveFileDialog.Title = "导出Excel"; saveFileDialog.Filter = "Excel文件(*.xlsx)|*.xlsx|Excel文件(*.xls)|*.xls"; DialogResult dialogResult = saveFileDialog.ShowDialog(); if (dialogResult == DialogResult.Cancel) return; string FileName = saveFileDialog.FileName; PrintingSystem ps = new PrintingSystem(); CompositeLink link = new CompositeLink(ps); ps.Links.Add(link); foreach (IPrintable panel in panels) { link.Links.Add(CreatePrintableLink(panel)); } link.Landscape = true;//横向 //判断是否有标题,有则设置 //link.CreateDocument(); //建立文档 try { int count = 1; //在重复名称后加(序号) while (File.Exists(FileName)) { if (FileName.Contains(").")) { int start = FileName.LastIndexOf("("); int end = FileName.LastIndexOf(").") - FileName.LastIndexOf("(") + 2; FileName = FileName.Replace(FileName.Substring(start, end), string.Format("({0}).", count)); } else { FileName = FileName.Replace(".", string.Format("({0}).", count)); } count++; } if (FileName.LastIndexOf(".xlsx") >= FileName.Length - 5) { XlsxExportOptions options = new XlsxExportOptions(); link.ExportToXlsx(FileName, options); } else { XlsExportOptions options = new XlsExportOptions(); link.ExportToXls(FileName, options); } if (DevExpress.XtraEditors.XtraMessageBox.Show("保存成功,是否打开文件?", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information) == DialogResult.Yes) System.Diagnostics.Process.Start(FileName);//打开指定路径下的文件 } catch (Exception ex) { DevExpress.XtraEditors.XtraMessageBox.Show(ex.Message); } } /// <summary> /// 创建打印Componet /// </summary> /// <param name="printable"></param> /// <returns></returns> PrintableComponentLink CreatePrintableLink(IPrintable printable) { ChartControl chart = printable as ChartControl; if (chart != null) chart.OptionsPrint.SizeMode = DevExpress.XtraCharts.Printing.PrintSizeMode.Stretch; PrintableComponentLink printableLink = new PrintableComponentLink() { Component = printable }; return printableLink; }

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