byte[] imageBt = null;
FileStream fstream = new FileStream(this.txtImage.Text, FileMode.Open, FileAccess.Read);
BinaryReader br = new BinaryReader(fstream);
imageBt = br.ReadBytes((int)fstream.Length);

conn.Open();
MySqlCommand command = new MySqlCommand("insert into images(image)values(@IMG)", conn);
command.Parameters.Add(new MySqlParameter("@IMG", imageBt));

reader = command.ExecuteReader();
MessageBox.Show("Saved");

while (reader.Read())
{

}