I've a couple of copied elements in an observablelist which I use for copy/paste operations in a TableView. The name of the table is cpTable (copy and paste Table) for storing copied elements and to paste elements that are stored in the table. After each paste operation I want to clear the contents of cpTable before I copy other selected items with Ctrl+C. But I always get the error:
JavaFX Application Thread" java.lang.UnsupportedOperationException: Not supported.
at com.sun.javafx.scene.control.ReadOnlyUnbackedObservableList.remove(ReadOnlyUnbackedObservableList.java:246)
Here is my pseudocode:
if (cpTable !=null) {
//first, get all copied items for removing all elements
ObservableList<String> copiedItems = cpTable.getItems();
int size = copiedItems.size();
// remove all elements
for(int i=0;i<size;i++) {
copiedItems.remove(i);
}
cpTable.setItems(copiedItems); //clear cpTable by setting an empty list
}
This is a method that copies the contents of selected items and puts it in a cpTable
public TableView<String> copySelectionToClipboard(TableView<String> table) {
ObservableList<String> data = table.getSelectionModel().getSelectedItems();
TableView<String> tmp = new TableView<>();
tmp.setItems(data);
return tmp;
}
When Ctrl+C is pressed the following line puts all copied items in a cpTable:
cpTable = copySelectionToClipboard( (TableView<String>) keyEvent.getSource());
As mentioned I want to clear all cpTable contents immediately after pasting the items in a table.
Just clear your Observable List. It looks like you should use copiedItems.clear();
That should clear your table.