public void OpenDialog(ref OpenFileDialog FileDialog, ref string Path, ref Speached speached, ref PdfViewer pdfViewer, ref string[] book) { try { if (FileDialog.ShowDialog() == DialogResult.OK) { Path = FileDialog.FileName; book = speached.TextFromPdf(Path); pdfViewer.Document = PdfDocument.Load(Path); } } catch { MessageBox.Show("Выберите сначало книгу"); } }