Unable to cast object of type 'System.Web.HttpInputStream' to type 'System.IO.FileStream'

[silentspeaker]

Hi,
I want to upload browsed file to the ftp server but getting this error

Sub UploadFile()

    Try
        Dim fileName As String = FulFile.PostedFile.FileName
        Dim requestFTP As WebRequest = WebRequest.Create("ftp://...................." & fileName)
        requestFTP.Credentials = New NetworkCredential("userid", "password")
        requestFTP.Method = WebRequestMethods.Ftp.UploadFile


        Dim fStream As FileStream = FulFile.PostedFile.InputStream 'Error:Unable to cast object of type 'System.Web.HttpInputStream' to type 'System.IO.FileStream'.


        Dim bufferLength As Integer = 2048
        Dim buffer As Byte() = New Byte(bufferLength - 1) {}

        Dim uploadStream As Stream = requestFTP.GetRequestStream()
        Dim contentLength As Integer = fStream.Read(buffer, 0, bufferLength)

        While contentLength <> 0
            uploadStream.Write(buffer, 0, contentLength)
            contentLength = fStream.Read(buffer, 0, bufferLength)
        End While
        uploadStream.Close()
        fStream.Close()
        requestFTP = Nothing

        LblMsg.Text = "File Uploading Is SuccessFull..."

    Catch ep As Exception
        LblMsg.Text = ep.Message
    End Try

End Sub

[Richard Deeming]

I'm not sure how the error message could be any clearer:

• the HttpPostedFile.InputStream property is a System.Web.HttpInputStream, which inherits from System.IO.Stream;
• you are attempting to store it in a variable of type System.IO.FileStream, which is a different type of System.IO.Stream.

Change your fStream variable to be a System.IO.Stream:

Dim fStream As Stream = FulFile.PostedFile.InputStream

Also, you're still not calling the GetResponse method on your requestFTP object. If you don't call that method, your request will never be sent.

---

"These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer

[silentspeaker]

GetResponse and requestFTP what are these and how can we upload using GetResponse and requestFTP bcoz it showing that

Network Error (tcp_error)

A communication error occurred: ""
The Web Server may be down, too busy, or experiencing other problems preventing it from responding to requests. You may wish to try again at a later time.

[Richard Deeming]

requestFTP is a variable in the code you just posted. GetResponse is a method on the FtpWebRequest type. The error you keep posting to different threads is most likely related to a timeout or firewall issue, and is nothing to do with the question you asked in the first post of this thread.

---

"These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer