AbstractCompare.Form1.button7_Click C# (CSharp) Метод

        private void button7_Click(object sender, EventArgs e) //Spocitaj vyskyt slov pre DBPediu
        {           
            abstraktDBpedia = Regex.Replace(abstraktDBpedia, "[^0-9a-zA-Z]+", " ");
            abstraktDBpedia = abstraktDBpedia.ToLower();
            
            List<string> zoznamSlovDB = abstraktDBpedia.Split(' ').ToList();
            pocetnostSlovDB = new Dictionary<string, int>();

            foreach (string slovo in zoznamSlovDB)
            {
                if (slovo.Length >= 1)
                {
                    //pocetSlovDB++;
                    if (pocetnostSlovDB.ContainsKey(slovo))
                    {
                        pocetnostSlovDB[slovo]++;
                    }
                    else
                    {
                        pocetnostSlovDB[slovo] = 1;
                    }
                }
            }

            pocetSlovDB = zoznamSlovDB.Count;
            richTextBox4.Text = "";

            var triedenaPocetnostSlovDB = (from vstup in pocetnostSlovDB orderby vstup.Value descending select vstup).ToDictionary(pair => pair.Key, pair => pair.Value);

            foreach (KeyValuePair<string, int> parik in triedenaPocetnostSlovDB)
            {
                richTextBox4.Text += parik.Key + "\t" + parik.Value + "\t" + "Vyskyt: " + Math.Round((double)parik.Value / pocetSlovDB, 3) + "\n";
            }
        }