c# - 创建 OpenExcel 并下载

Question

我有以下代码用于创建 Excel 文件，然后将其发送以供下载:

Stream stream = Stream.Null;
using (ExcelDocument doc = ExcelDocument.CreateWorkbook(stream)) 
{
     ExcelWorksheet wsheet = doc.Workbook.Worksheets.Add("Assessment");
     doc.EnsureStylesDefined();
     // add some cells              
}

Response.ContentType = "application/vnd.ms-excel";
Response.AddHeader("Content-Disposition", "inline;filename=Assessment.xlsx;charset=utf-8;");
Response.BinaryWrite(Utilities.Utilities.ConvertFileToByteArray(stream));
Response.End();

当使用结束时，我收到此错误:

File contains corrupted data.

如果我将文件保存到磁盘上，它就可以正常工作。

我哪里出错了？

我正在使用这个Component .

Answer 1

将第一行更改为:

MemoryStream stream = new MemoryStream();

也改变

Response.BinaryWrite(Utilities.Utilities.ConvertFileToByteArray(stream));

至

Response.BinaryWrite(stream.ToArray());