Read uploaded file before saving it on hard disk - ASP.NET

Question

Hello

I know how to upload and save uploaded file on hard disk. I used HttpInputFile and HttpPostedFile classes. And then I saved the HttpPostedFile on hard disk. My requirement is to validate the uploaded files before saving them on hard disk. Using HttpPostedFile.InputStream property I can get the stream. I can read the stream in byte array.
But I want to read the individual field of csv file, validate it and then save it to database. Please suggest how to meet this requirement.
Waiting for suggestions

Thank you.
C_sharpkid

c_sharpkid · Answer

This code worked for me Protected Sub btnUpload_Click( ByVal source As Object  ByVal e As EventArgs) Dim i As Int16 Dim MyFileCollection As HttpFileCollection Dim postedFile As HttpPostedFile Try MyFileCollection = Request.Files If (MyFileCollection.Count > 0) Then For i = 0 To MyFileCollection.Count - 1 postedFile = MyFileCollection(i) Dim filename As String = Path.GetFileName(postedFile.FileName) Dim contentType As String = postedFile.ContentType Dim contentLength As Integer = postedFile.ContentLength Dim loop1 As Int16 Dim savePath As String = D:\Program Files\Visual studio projects\ Dim sr As StreamReader = New StreamReader(postedFile.InputStream) Dim input As String While sr.Peek() > -1 input = input + sr.ReadLine() End While sr.Close() message.Text = input postedFile.SaveAs(savePath & filename) 'message.Text = postedFile.FileName &  uploaded & _ '  content type:  & contentType & _ '  content length:  & contentLength.ToString() Next End If Catch exc As Exception message.Text = Failed uploading file + exc.Message End Try End Sub