TableComboViewer tcv = new TableComboViewer(this, SWT.BORDER);
tcv.setContentProvider(new ArrayContentProvider());
tcv.setLabelProvider(LookupLabelProvider.getInstance()); // this is a custom label provider

tcv.setItemCount(10);

tcv.getTableCombo().setVisibleItemCount(10);

tcv.getTableCombo().setShowTableLines(true);

// copyright 2014 Remain BV http://remainsoftware.com
public class Model {

	private final int id;
	private final String description;

	public Model(int id, String description) {
		this.id = id;
		// TODO Auto-generated constructor stub
		this.description = description;
	}

	public String getDescription() {
		return description;
	}

	public int getId() {
		return id;
	}
}

////////////////////////////////////////////////////////////////////////
		// Sample #4
		////////////////////////////////////////////////////////////////////////
		// create label
		label = new Label(group, SWT.NONE);
		label.setText("Two Columns (With Colors && Fonts):");
		
		// create TableCombo
		tcv = new TableComboViewer(group, SWT.READ_ONLY | SWT.BORDER);
		tcv.getTableCombo().setLayoutData(new GridData(125, SWT.DEFAULT));
		tcv.getTableCombo().setVisibleItemCount(10);
		...