private async void UserName_comboBox_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (this.userName_comboBox.SelectedItem == null)
            {
                //this.userName_comboBox.SelectedItem = 0;
                this.userName_comboBox.SelectedItem = this.userName_comboBox.Items[0];
            }
            this.selectedComboboxItem = this.userName_comboBox.GetItemText(this.userName_comboBox.SelectedItem).ToString();

            parsedEntities = LogFileParser.ParceUsersComputers(selectedComboboxItem);
            sortComputers(ref parsedEntities);
            this.parsedEntitiesNames_listBox.DataSource = LogFileParser.getNames(parsedEntities);
            foreach (var el in parsedEntities)
            {
                if (Convert.ToDateTime(el.lastLog.Substring(0, 8)).AddMonths(4) >= DateTime.Now)
                {
                    string computerName = String.Empty;
                    string userName     = String.Empty;
                    switch (selectedSearchType)
                    {
                    case SearchFor.users:
                        computerName = selectedComboboxItem;
                        userName     = el.name;
                        break;

                    case SearchFor.computers:
                        computerName = el.name;
                        userName     = selectedComboboxItem;
                        break;
                    }
                    if (await Task.Run(() => AdminTools.checkUserLogedIn(computerName, userName)))
                    {
                        el.loginStatus = true;
                        this.parsedEntitiesNames_listBox.Refresh();
                    }
                }
            }
        }