java - Completely expand all node of a Jtree (including children) -



java - Completely expand all node of a Jtree (including children) -

i found details on net problem solution not seem work .

i want able expand nodes ( including leaf nodes ) of jtree . code have far .

tree = new jtree(treemodel); tree.setshowsroothandles(true); tree.seteditable(true); tree.addtreeselectionlistener(treeselectionlistener); tree.addmouselistener(mouselistener); tree.setcellrenderer(new filecellrenderer()); (int = 0; < tree.getrowcount(); i++) { tree.expandrow(i); }

this not expand leaf nodes . image want image b .

use recursive call, in next sample:

private void expandallnodes(jtree tree, int startingindex, int rowcount){ for(int i=startingindex;i<rowcount;++i){ tree.expandrow(i); } if(tree.getrowcount()!=rowcount){ expandallnodes(rowcount, tree.getrowcount()); } }

java swing jtree

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