Data binding problem

Vaadin 6 / 7 / 8
1

Hi, I hope I am right here and someone can help me.
I have a big problem with binding.

Can somebody explain why I get an error although I don’t use any binder in my code anymore ???
Before that I made a mistake using the binder but i deleted this code now.

Error: SCHWERWIEGEND: Servlet.service() for servlet [MyUIServlet]
in context with path
[/vcapp] threw exception [com.vaadin.server.ServiceException: java.lang.IllegalArgumentException: Could not resolve property name peopleNeeded from Property set for bean my.vaadin.vcapp.Project]
with root cause
java.lang.IllegalArgumentException: Could not resolve property name peopleNeeded from Property set for bean my.vaadin.vcapp.Project
at com.vaadin.ui.Grid.lambda$addColumn$47(Grid.java:2201)

This is de code in the class FormLayout:
public class ProjectForm extends FormLayout {

protected TextField projectname = new TextField("Projektname");

private MyUI myUI;

public ProjectForm(MyUI myUI) {
	this.myUI= myUI;
	 setSizeUndefined();
	 addComponents(projectname);
	 
	 }

Maybe its just a little faul by me but I am working on it for several hours now.

best regards Paul

2

The exception is not thrown from your Form. You have some other class setting up a Grid, and the exception happens there. Check your addColumn(…) methods and if you have lambda there using a property that does not exists.

3

Thank you so much :slight_smile: it works

regards