save image files in C#

Question

How can we save image files (types such as jpg or png) in C#?

Answer 1

            SaveFileDialog sv = new SaveFileDialog();
            sv.Filter = "Images|*.jpg ; *.png ; *.bmp";
            ImageFormat format = ImageFormat.Jpeg;

            if (sv.ShowDialog() == DialogResult.OK)
            {

                switch (sv.Filter )
                {
                    case ".jpg":

                        format = ImageFormat.Png;
                        break;

                    case ".bmp":

                        format = ImageFormat.Bmp;
                        break;
                }


                pictureBox.Image.Save(sv.FileName, format);
            }