if (screenLocationExdr != null)
screenLocation = screenLocationExdr.expandString(context);
if (screenName != null && screenLocation != null) {
ScreenStringRenderer screenStringRenderer = treeStringRenderer.getScreenStringRenderer(context);
ModelScreen modelScreen = ScreenFactory.getScreenFromLocation(screenLocation, screenName);
modelScreen.renderScreenString(writer, context, screenStringRenderer);
}
if (label != null) {
label.renderLabelString(writer, context, treeStringRenderer);
}
if (link != null) {