How to get the path to an image loaded in a PictureBox?

Question

Images

Hello, I am making a program for working with images in WIndows Forms c#. I am using MDI. I would like to know how to get the path to the loaded image from OpenFileDilaog ? It is necessary to save the image along the same path.
Image opening code

private void openImageToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (openfile.ShowDialog() == DialogResult.OK)
            {
                try//Попытаемся открыть файл
                {
                    bmp = new Bitmap(((PictureBox)ActiveMdiChild.Controls["pictureBox"]).Image = Image.FromFile(openfile.FileName), childForm.pictureBox.Width, childForm.pictureBox.Height);
                    ((PictureBox)ActiveMdiChild.Controls["pictureBox"]).Image = bmp;
                    imageDirect = ((PictureBox)ActiveMdiChild.Controls["pictureBox"]).ImageLocation;
                    MessageBox.Show(imageDirect, "Test", MessageBoxButtons.OK);
                }
                catch
                {
                    MessageBox.Show("Невозможно открыть файл!", "Ошибка!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }

Save code:

private void saveToolStripMenuItem_Click(object sender, EventArgs e)
        {
           ((PictureBox)ActiveMdiChild.Controls["pictureBox"]).Image.Save(((PictureBox)ActiveMdiChild.Controls["pictureBox"]).ImageLocation);
           MessageBox.Show("Файл Сохранен успешно!");
        }