Hi all, A noob question, I have trouble trying to port an existing vb.net snippet to pascal. Can anyone provide a code snippet where we can download and view a file from a Database? A binary(jpeg/pdf file) was uploaded to a database table. The code will just download the file uploaded and view it.
In vb.net this can be done:
/ if conn.State = ConnectionState.Closed Then conn.Open()//
// sql = "Select binfile from graphicfiles WHERE id=" & id//
//
// cmd = New NpgsqlCommand(sql, conn)//
//
// Dim fileData As Byte() = DirectCast(cmd.ExecuteScalar(),
Byte())//
//
// Dim sTempFileName As String = Path.GetTempPath & "\" &
sFileName//
//
// If Not fileData Is Nothing Then//
//
// 'Read image data into a file stream //
// Using fs As New FileStream(sTempFileName,
FileMode.OpenOrCreate, FileAccess.Write)//
// fs.Write(fileData, 0, fileData.Length)//
// 'Set image variable value using memory stream. //
// fs.Flush()//
// fs.Close()//
// End Using//
//
// Process.Start(sTempFileName) 'Open file//
//
// End If//
/
Thanks,,
Allan
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