Updating and Editing Table View

Question

I have been facing a very specific problem.
I have a Table View populated with certain data. My objective is to edit the data in the table. For that I select a particular row of data and click on a button 'Edit'. This takes me to a new Scene, where the data is populated in textfields and I can alter them and then click 'Save', so that the data is updated.
But the problem that I am facing is that the Updated row of data occupies the last row and not at its orignal place where it was previously placed.
Hence I wanted any kind of help as to how to insert a row of data at a particular row index.
Thanks in advance.

Answer 1

It sounds like you are removing the old version of the item from the table's data list and adding the new version back in. That's not always actually necessary (but is sometimes, depending on your data model). By default add(...) adds to the end of the list.
If that's the case, you can do something along the lines of
List<MyItemType> items = tableView.getItems();
int index = items.indexOf(oldItem);
items.set(index, newItem);Lists also have an add method that takes an index if you really need to use add:
tableView.getItems().add(index, newValue);