CheckboxTableViewer won't show the label of checkboxes

Question

In Java, I am using CheckboxTableViewer to display a checklist for the user. I am populating the checklist using setInput method, as shown below. But for some reason, when I run my code, which resides in a Wizard Page, it shows the checkboxes but not the labels of the boxes (no text at all, as if I am passing empty strings). How can I fix the problem? Thank You. Below is my code

public void createControl(Composite arg0) {

        Composite container = new Composite(arg0, SWT.NONE);
        container.setLayout(new GridLayout());

        GridData layoutData = new GridData(SWT.FILL, SWT.FILL, true, true);
        container.setLayoutData(layoutData);

        checkboxTableViewer = CheckboxTableViewer.newCheckList(container,
                SWT.FULL_SELECTION | SWT.BORDER);
        checkboxTableViewer.getTable().setLinesVisible(true);
        checkboxTableViewer.getTable().setSize(500, 500);
        checkboxTableViewer.setContentProvider(new ArrayContentProvider());
        checkboxTableViewer.setLabelProvider(new ITableLabelProvider() {

            public void removeListener(ILabelProviderListener listener) {
                // TODO Auto-generated method stub

            }

            public Image getColumnImage(Object element, int columnIndex) {
                // TODO Auto-generated method stub
                return null;
            }

            public String getColumnText(Object element, int columnIndex) {
                // TODO Auto-generated method stub
                return null;
            }

            public void addListener(ILabelProviderListener listener) {
                // TODO Auto-generated method stub

            }

            public void dispose() {
                // TODO Auto-generated method stub

            }

            public boolean isLabelProperty(Object element, String property) {
                // TODO Auto-generated method stub
                return false;
            }
        });

        checkboxTableViewer.setInput(new String[]{"zaid","saad","ahmad"});

        checkboxTableViewer.addCheckStateListener(new ICheckStateListener() {

            public void checkStateChanged(CheckStateChangedEvent event) {
                if (checkboxTableViewer.getCheckedElements().length > 0) {
                    enableNext = true;
                } else {
                    enableNext = false;
                }
                checkStatus();

            }

            private void checkStatus() {
                canFlipToNextPage();
                // explicit call
                getWizard().getContainer().updateButtons();

            }
        });

        setControl(container);

    }

Answer 1

It is up to the label provider you set on the table to provide the text for the table. The label provider you have set just returns null for the text (and everything else) so you don't get anything.

Since you are just setting strings in your table you can just use the standard label provider:

checkboxTableViewer.setLabelProvider(new LabelProvider());