Baka_MPlayer.Forms.SnapshotForm.saveButton_Click C# (CSharp) Method

        private void saveButton_Click(object sender, EventArgs e)
        {
            // set file name
            var fileName = cleanNameCheckbox.Checked ?
                CleanName(fileInfo.MovieName) : fileInfo.MovieName;

            var sfd = new SaveFileDialog
            {
                FileName = fileName + "_snapshot[1].png",
                Filter = "PNG Images|*.png|" +
                         "Bitmap Images|*.bmp|" +
                         "GIF Images|*.gif|" +
                         "JPEG Images|*.jpg|" +
                         "TIFF Images|*.tiff"
            };

            int total = 1;
            while (File.Exists(string.Format("{0}\\{1}_snapshot[{2}].png", fileInfo.GetDirectoryName, fileName, total)))
            {
                total++;
                sfd.FileName = string.Format("{0}_snapshot[{1}].png", fileName, total);
            }

            if (sfd.ShowDialog() == DialogResult.OK && sfd.FileName.Length > 0)
            {
                switch (sfd.FilterIndex)
                {
                    case 1:
                        SnapshotImage.Save(sfd.FileName, System.Drawing.Imaging.ImageFormat.Png);
                        break;
                    case 2:
                        SnapshotImage.Save(sfd.FileName, System.Drawing.Imaging.ImageFormat.Bmp);
                        break;
                    case 3:
                        SnapshotImage.Save(sfd.FileName, System.Drawing.Imaging.ImageFormat.Gif);
                        break;
                    case 4:
                        SnapshotImage.Save(sfd.FileName, System.Drawing.Imaging.ImageFormat.Jpeg);
                        break;
                    case 5:
                        SnapshotImage.Save(sfd.FileName, System.Drawing.Imaging.ImageFormat.Tiff);
                        break;
                }
            }
        }