Teams Winter 2011/team1/RCP/Create RPC Application

2. Show data in the application

2.1 Columns data in a JFace table can be hold in ModelProvider and it is defined via instances of TableViewerColumn object:

viewer.setInput(ModelProvider.INSTANCE.getStudents());

and

TableViewerColumn col = createTableViewerColumn(titles[0], bounds[0], 0);

2.2 Add the following lines to StudentsView.java class:
Private variable:
private TableViewer viewer;
Change the createColumns()method:


   String[] titles = { "Id", "First name", "Last name", "Program" };
   int[] bounds = { 100, 100, 100, 100 };
   // First column is for the student id
   TableViewerColumn col = createTableViewerColumn(titles[0], bounds[0], 0);
   col.setLabelProvider(new ColumnLabelProvider() {
      @Override
      public String getText(Object element) {
        Student s = (Student) element;
        return s.getId();
      }
    });
 

Add the same functionality for other three columns 2.3 Run your application:

3. Add edit cell feature

3.1 To make the column editable you need to define an object of type <code>EditingSupport/<code> on your TableColumnViewer. 3.2 Create new class for each column that extends <code>EditingSupport class:

   package cs.ecl.rcp.simplercp.edit;

   import org.eclipse.jface.viewers.CellEditor;
   import org.eclipse.jface.viewers.EditingSupport;
   import org.eclipse.jface.viewers.TableViewer;
   import org.eclipse.jface.viewers.TextCellEditor;
  
   import cs.ecl.rcp.simplercp.model.Student;

   public class IdEditingSupport extends EditingSupport {
private final TableViewer viewer;

	public IdEditingSupport(TableViewer viewer) {
		super(viewer);
		this.viewer = viewer;
	}

	@Override
	protected CellEditor getCellEditor(Object element) {
		return new TextCellEditor(viewer.getTable());
	}

	@Override
	protected boolean canEdit(Object element) {
		return true;
	}

	@Override
	protected Object getValue(Object element) {
		return ((Student) element).getId();
	}

	@Override
	protected void setValue(Object element, Object value) {
		((Student) element).setId(String.valueOf(value));
		viewer.refresh();
	}
}

3.3 Assign EditorSupport objects to your TableColumnViewers in your StudentView class.

Add the following line at the end of the LabelProvider is set:

col.setEditingSupport(new IdEditingSupport(viewer));