Reading uploaded Excel file without saving it

Question

In this snippet of code - I get the uploaded file from the user and save it in a folder in my app and then make OleDbConmnection to this Excel File and read the data. My questio

Answer 1

This line

HttpPostedFileBase file = Request.Files[0];

Say that can't possible convert HttpPostedFile to HttpPostedFileBase

Answer 2

See this library. Excel Data Reader

EDIT example:

if (Request != null)
{
   HttpPostedFileBase file = Request.Files[0];
   if ((file != null) && (file.ContentLength > 0) && !string.IsNullOrEmpty(file.FileName))
   {
        string fileName = file.FileName;
        string fileContentType = file.ContentType;
        string fileExtension = System.IO.Path.GetExtension(Request.Files[0].FileName);

        if (fileExtension == ".xls" || fileExtension == ".xlsx")
        {
            IExcelDataReader excelReader;
            if (fileExtension == ".xls")
                excelReader = ExcelReaderFactory.CreateBinaryReader(stream);
            else
                excelReader = ExcelReaderFactory.CreateOpenXmlReader(stream);

            excelReader.IsFirstRowAsColumnNames = true;
            DataSet ds = excelReader.AsDataSet();

            DataTable Dt = ds.Tables[0];