I have compared the resulting HTML-Pages with the example you sent and
cannot see a difference. What i have done is to imitate the example
given on the Javadoc for Checkboxtree. Only the Information for the
nodes comes from a database. I give you a code snippet maybe you can see
what's wrong:
public void CreateSubTree(TreeNode parentnode,Integer level) {
String parent="";
TreeNode node=null;
try {
parent=rs.getString(level);
} catch (SQLException e) {
e.printStackTrace();
}
node=new TreeNode(parent,nodeNumber.toString());
parentnode.add(node);
nodeNumber++;
try {
if
((!rs.getMetaData().getColumnName(level+1).equals("kanalid") &&
!rs.isAfterLast())) {
for (;parent.equals(rs.getString(level)) &&
!rs.isLast();) {
CreateSubTree(node,level+1);
rs.next();
}
}
} catch (SQLException e) {
e.printStackTrace();
}
}
public Select() throws SQLException{
CheckboxTree tree;
db=new Database();
conn=db.getConnection();
tree=new CheckboxTree("tree");
addControl(tree);
stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,
ResultSet.CONCUR_READ_ONLY);
rs=stmt.executeQuery("select
owner,stationsname,kanalname,kanalid from stationen left join kanaele
using(stationid) " +
"order by owner,stationsname,kanalname");
rs.first();
rs.next();
TreeNode root = new TreeNode("rootnode","0");
nodeNumber=1;
CreateSubTree(root,1);
tree.setRootNode(root);
tree.setRootNodeDisplayed(true);
rs.getMetaData().getColumnName(j);
tree.expandAll();
addModel("tree",tree);
stmt.close();
}
<html>
<head>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html;charset=UTF-8">
<title>Select</title>
$imports
</head>
<body>
$tree
$jsElements
</body>
</html>
Regards Reinhard
Am 2011-03-24 10:22, schrieb Bob Schellink:
Hi Reinhard,
Here is an example of the checbox tree[1] which works properly. Also
look at the source code of that example and compare against your own code.
regards
Bob
[1]: http://click.avoka.com/click-examples/tree/checkbox-tree-page.htm
On 2011/03/24 11:16 AM, Reinhard Hnat wrote:
Hi There!
I am using the CheckboxTree component. But it has a strange behaviour. When i create the tree
everything is fine and all Nodes are displayed. Collapsing a node is also no problem. But when i
try to reexpand the node (by clicking at the "+" sign) it does not work, When i click at
the "-" sign of the next node in the same hierarchy the node which was collapsed before
gets expanded.
Does anyone know this problem and what to do?
Thanks in advance
Reinhard
