Question

我正在尝试在C＃ASP.NET Web应用程序中使用封闭XML。我有一个数据集，其中包含30多个数据表。我想将每个数据表作为单独的工作表传递，然后创建Excel。

每个数据表具有10000行和255列。我收到错误消息：

    {System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.
   at ClosedXML.Excel.XLRangeBase.Cell(XLAddress cellAddressInRange)
   at ClosedXML.Excel.XLRangeBase.Cell(Int32 row, Int32 column)
   at ClosedXML.Excel.XLCell.SetValue[T](T value, Int32 ro, Int32 co)
   at ClosedXML.Excel.XLCell.InsertTable[T](IEnumerable`1 data, String tableName, Boolean createTable)
   at ClosedXML.Excel.XLCell.InsertTable(DataTable data, String tableName, Boolean createTable)
   at ClosedXML.Excel.XLCell.InsertTable(DataTable data)
   at ClosedXML.Excel.XLWorksheets.Add(DataTable dataTable, String sheetName)
   at ClosedXML.Excel.XLWorksheets.Add(DataTable dataTable)

我尝试使用下面的代码

XLWorkbook wb = new XLWorkbook();
foreach (DataTable dt in ds.Tables)
{
   wb.Worksheets.Add(dt);
}

Response.Clear();
Response.Buffer = true;
Response.Charset = "";
Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
Response.AddHeader("content-disposition", "attachment;filename= " + filename1 + ".xlsx");

using (MemoryStream MyMemoryStream = new MemoryStream())
{
   wb.SaveAs(MyMemoryStream);
   MyMemoryStream.WriteTo(Response.OutputStream);
   Response.Flush();
   Response.End();
}
wb.Dispose();

该行中发生错误

wb.Worksheets.Add(dt);

添加第一个数据表，然后循环移至第二个数据表。在第二种情况下，我得到了错误。

在Closed Xml中可以使用的行数和列数是否有限制？另外，还有其他方法可以实现将数据导出到excel吗？

封闭的XML-数据表和行数

0 个答案: