Nebula GridViewer Selection not working - eclipse

Question

I am using Nebula Grid to display an excel sheet in my RCP application. I have an requirement to select all rows. My code is as follows:
private void addKeyListener() {
this.gv.getGrid().addKeyListener(new KeyListener() {
#Override
public void keyPressed(KeyEvent arg0) {
}
#Override
public void keyReleased(KeyEvent e) {
if(e.stateMask==SWT.CTRL && e.keyCode =='a'){
ArrayList al = (ArrayList) gv.getInput();
//System.out.println("ctrl+c pressed");
gv.setSelection(new StructuredSelection(al.toArray()),true);
//gv.getGrid().setSelection(0, al.size()-1);
//gv.getGrid().selectAll();
//gv.getGrid().setSelection(new int[]{1,2});
//gv.getGrid().setSelection(1);
//gv.getGrid().setSelectionEnabled(true);
//gv.getGrid().select(new int[]{1,2,3});
//gv.refresh();
}
but this is not working. what am I missing ?

Answer 1

You have not mentioned what type of selection behaviour is being used by the grid in your code. i.e, Row or Cell Selection, single or multiple selections (SWT.SINGLE & SWT.MULTI styles).
Setting the style to SWT.MULTI when initializing the Grid seems to do the trick.
Here is the snippet that works for me.
public class GridSnippet {
public static void main (String [] args) {
Display display = new Display ();
Shell shell = new Shell (display);
shell.setLayout(new FillLayout());
final Grid grid = new Grid(shell,SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL | SWT.MULTI);
grid.setHeaderVisible(true);
// grid.setCellSelectionEnabled(true);
GridColumn column = new GridColumn(grid,SWT.NONE);
column.setText("Column 1");
column.setWidth(100);
GridItem item1 = new GridItem(grid,SWT.NONE);
item1.setText("First Item");
GridItem item2 = new GridItem(grid,SWT.NONE);
item2.setText("Second item");
GridItem item3 = new GridItem(grid,SWT.NONE);
item3.setText("Third Item");
grid.addKeyListener(new KeyListener() {
#Override
public void keyPressed(KeyEvent arg0) {
}
#Override
public void keyReleased(KeyEvent e) {
if(e.stateMask==SWT.CTRL && e.keyCode =='a'){
System.out.println("ctrl+c pressed");
grid.selectAll();
}
}
});
shell.setSize(200,200);
shell.open ();
while (!shell.isDisposed()) {
if (!display.readAndDispatch ()) display.sleep ();
}
display.dispose ();
}
}