SharePoint Document Library C# - Restore particular version document

Let’s see, How to restore particular version document in SharePoint document library.

private void RestoreDocument()

        {

            try

            {

                    DialogResult dr = MessageBox.Show("you are about to replace the current version with the selected version?", "Message", MessageBoxButtons.YesNo, MessageBoxIcon.Question);

                    if (dr == DialogResult.Yes)

                    {

                        SPSite Site = new SPSite(URL);

                        using (SPWeb web = Site.OpenWeb())

                        {

                            SPList list = web.Lists[DocLibrary];

                            SPListItem item = list.GetItemById(DocID);

                            item.Versions.RestoreByID(selectedversionID);

                            MessageBox.Show("Document version has been successfully restored.", "Message");

                        }

                    }

            }

            catch (Exception ex)

            {

                MessageBox.Show(ex.Message, "Message");

                return;

            }

        }