String modelType = typeCb.getSelectedItem().getValue().toString();
Textbox fileNameTextbox = (Textbox) this.getFellow("fileNameTextbox");
String modelFileName = fileNameTextbox.getText();
Label formatLabel = (Label) getFellow("format");
String modelFileExtension = formatLabel.getValue();
buildingDocForm.setBuilding(building);
buildingDocForm.setSystemType(systemType);
buildingDocForm.setModelType(modelType);
if (!modelFileName.equals(buildingDocForm.getModelFileName())) {