Create a Tree : Tree « SWT « Java Tutorial






Create a Tree
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeItem;

public class TreeCreate {

  public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new FillLayout());
    final Tree tree = new Tree(shell, SWT.BORDER);
    for (int i = 0; i < 4; i++) {
      TreeItem iItem = new TreeItem(tree, 0);
      iItem.setText("TreeItem (0) -" + i);
      for (int j = 0; j < 4; j++) {
        TreeItem jItem = new TreeItem(iItem, 0);
        jItem.setText("TreeItem (1) -" + j);
        for (int k = 0; k < 4; k++) {
          TreeItem kItem = new TreeItem(jItem, 0);
          kItem.setText("TreeItem (2) -" + k);
          for (int l = 0; l < 4; l++) {
            TreeItem lItem = new TreeItem(kItem, 0);
            lItem.setText("TreeItem (3) -" + l);
            for (int m = 0; m < 4; m++) {
              TreeItem mItem = new TreeItem(lItem, 0);
              mItem.setText("TreeItem (3) -" + l);
            }
            
          }
        }
      }
    }
    shell.setSize(200, 200);
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    display.dispose();
  }
}








17.57.Tree
17.57.1.Trees
17.57.2.Create a TreeCreate a Tree
17.57.3.Populate tree lazilyPopulate tree lazily
17.57.4.Create Three Level TreeCreate Three Level Tree
17.57.5.Insert TreeItem to TreeInsert TreeItem to Tree
17.57.6.Add checkbox mark to the tree nodeAdd checkbox mark to the tree node
17.57.7.A multiselection treeA multiselection tree
17.57.8.A single-selection treeA single-selection tree