Javafx tableview with data from multiple classes

Question

I have no problem filling my tableview with diffrent data from 1 class. But it does not work for me with multiple classes. Any idea how to solve that? I have checked out sim

Answer 1

Solved it by adding an additional String to my TaskControl, that contains the names of all the projects it contains. It gets the names through a function that I call just before I create the ObservableList for the Table Column.

private String projectsAsString;
    ...
public final void convertProjectsToString() {

    String projects = "";

    for (Project p : this.getProjects()) {
        ProjectControl pp = (ProjectControl) p;
        projects += pp.getName() + ", ";
    }
    if (projects != null && projects != "" && projects.length() > 4) {
        projects = projects.substring(0, projects.length() - 2);
    }
    this.projectsAsString = projects;
}

Thank you guys anyways for helping me.