private void AddSelectedEtlStep() { if (SelectedAvailableEtlStep != null) { var etlStepType = SelectedAvailableEtlStep.Type; var newStep = new ConfiguredEtlStep { StepType = etlStepType, Config = etlStepType.GetNewIConfigurableConfigurationObject() }; ConfiguredEtlSteps.Add(newStep); } }