private async void AddDriver(object parameter) { Console.WriteLine("Adding driver"); if (!ValidateDriverInfo()) { return; } Driver existingDriver = await _driverService.GetDriverByUsername(this.Username); if (existingDriver != null && existingDriver.DriverID != 0) { IsErrorInUsername = true; ErrorMessage = "Username already exists, Please try another."; OnErrorOccurred?.Invoke(this, new EventArgs()); return; } Driver driver = new Driver() { FirstName = this.FirstName, LastName = this.LastName, UserName = this.Username, Pin = this.Pin, IsActive = this.IsActive, GroupID = this.AddEditSelectedGroup != null ? this.AddEditSelectedGroup.GroupID : default(int?), ProductID = this.SelectedProduct.ProductID, }; IsDataLoading = true; await _driverService.AddNewDriver(driver); IsDataLoading = false; await FetchGroupsAsync(false); await FetchAllDriversAsync(); Console.WriteLine($"FirstName : {FirstName}, LastName : {LastName}, Pin : {Pin}, Group : {AddEditSelectedGroup?.Name}, IsActive : {IsActive}"); ClosePopup(parameter); }