[英]Download Blob file into Memory Stream from Azure using C#
[英]Download excel file using memory stream in C#
我必須通過從 memory stream 創建 excel 工作簿來返回文件。 我使用過 Interop、closed.xml、spire.xls 但沒有找到實現相同目標的方法。
var stream=clsUploadHelper.GetAttachmentFileStream(string.Empty, Filename);
Workbook book=new Workbook();
book.worksheet.Add(stream);
stream.Position = 0;
string xmlString = "attachment;filename=" + Filename;
return File(stream, xmlString, Filename);
我是新來的,如果可能的話,請幫忙。 提前致謝。
聚會可能遲到了,但是我今天遇到了這個問題,並且能夠編寫此 POC 以便使用 .NET Core Web API 返回 XLSX 文件。
[HttpPost]
public async Task<FileResult> Post()
{
try
{
var workbook = new Workbook();
var sheet = workbook.Worksheets[0];
sheet.InsertRow(1);
sheet.Rows[0].Columns[0].Value = "testing...";
await using var stream = new MemoryStream();
workbook.SaveToStream(stream, Spire.Xls.FileFormat.Version2016);
const string contentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
HttpContext.Response.ContentType = contentType;
HttpContext.Response.Headers.Add("Access-Control-Expose-Headers", "Content-Disposition");
var fileContentResult = new FileContentResult(stream.ToArray(), contentType)
{
FileDownloadName = $"test.xlsx"
};
return fileContentResult;
}
catch (Exception e)
{
Console.WriteLine(e);
return null;
}
}
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