private void addMedicine_Click(object sender, EventArgs e) { Medicine medicine = new Medicine(medicineName.Text, medicineCountry.Text, Convert.ToDecimal(medicinePrice.Text), medicineExpire.Value); admin.AddMedicine(medicine); Stream myStream; OpenFileDialog selectPicture = new OpenFileDialog() { InitialDirectory = "C:\\", Filter = "Image Files (*.bmp;*.jpg;*.jpeg,*.png)|*.BMP;*.JPG;*.JPEG;*.PNG" }; if (selectPicture.ShowDialog() == DialogResult.OK) { try { if ((myStream = selectPicture.OpenFile()) != null) { using (myStream) { medicine.AddPicture(imageToByteArray(new Bitmap(myStream))); } } } catch (Exception ex) { MessageBox.Show("Error: Could not read file from disk. Original error: " + ex.Message); } } medicineCountry.Text = medicineName.Text = medicinePrice.Text = ""; medicines.Add(medicine); allMedicine_Click(0, EventArgs.Empty); }