private void Uebernehme_Einsatztelefon(bool ablegen = false) { string AppName = "Test des Tools"; string SheetId = "1Ys3X7DXWsQw_S4ZH1VJNaGRVFmbGn1clhmNsFEwFa6g"; spreadsheetapi telefone = new spreadsheetapi(AppName, SheetId); List <IList <Object> > objNewRecords = new List <IList <Object> >(); IList <Object> obj = new List <Object>(); if (ablegen) { obj.Add("Unbesetzt"); obj.Add("---"); Telefonname = ""; button3.Text = "Übernehmen"; } else { obj.Add("Besetzt"); obj.Add(Form1.username); Telefonname = Form1.username; button3.Text = "Ablegen"; } objNewRecords.Add(obj); telefone.updateTable("Tabellenblatt1!B5:C5", objNewRecords); }