Problem in scene builder

Question

Hi;
when i put a new control on the scene i get the warning:
No injectable field found in FXML Controller class for the id chb
what is the meaning of this warning and what is FXML controller and where to find it
regards

Answer 1

Hi,
For each FXML file, you can define a controller class, which will be instantiated by the FXML loader - and which is how you can connect the objects defined in FXML to your own application logic.
See here for a brief description on how this works: Re: Loading and Unloading of FXML components at runtime
What makes the connection between the variable in the controller class and the object in the FXML file is the value of the object's fx:id.
When you set an fx:id on an object - the SceneBuilder tries to parse the controller class in order to see whether the class has a variable of that name. If it doesn't find any - it displays a warning - which is a reminder for you that you may want to add such a variable to the controller class.
Usually however, these wranings only appear if you have defined a controller class, and if SceneBuilder has found it.
The controller class can be set by selecting the root node in the HierarchyPanel, then opening the Code section in the inspector. You should see a textfield at the top in which you can set the full name of the class.
Hope this helps,
-- daniel