Value Property (MySqlBlob)
This code fragment downloads a BLOB field from a table to a file.
Value property is initialized by calling
MySqlDataReader.GetMySqlBlob method and then written to a stream.
MySqlBlob myBlob = myReader.GetMySqlBlob(myReader.GetOrdinal("Picture"));
if(!myBlob.IsNull)
{
string FN = myReader.GetString(myReader.GetOrdinal("PicName"));
FileStream fs = new FileStream("D:\\Tmp\\"+FN+".bmp", FileMode.Create);
fs.Write(myBlob.Value,0,(int)myBlob.Length);
fs.Close();
Console.WriteLine(FN+" downloaded.");
}
Dim myBlob As MySqlBlob = myReader.GetMySqlBlob(myReader.GetOrdinal("Picture"))
If Not myBlob.IsNull Then
Dim FN As String = myReader.GetString(myReader.GetOrdinal("PicName"))
Dim fs As FileStream = New FileStream("D:\Tmp\" + FN + ".bmp", FileMode.Create)
fs.Write(myBlob.Value, 0, Convert.ToInt32(myBlob.Length))
fs.Close()
Console.WriteLine(String.Concat(FN, " downloaded."))
End If
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2