Checkbox in table

Question

hi dear wd experts,
i have created a 2 coloumns table, which retrieves data from a model object. It's context is nodeUTablenodeUrowsattribute1.
the second table column contains a checkbox.
For the checkbox I set up a node, which carries a bool variable and which is assigned to the checkbox "checked" poperty.
I set the cardinality of the checkbox node 1:n (when using 0:n the checkboxes are disabled...)
During wdDoModify I create checkbox contexts like this:
wdContext.nodeStandard().invalidate();
int rsize = wdContext.nodeUrows().size();
          for (int i = rsize - 1; i >= 0; i--)
               IPrivateDealer.IStandardElement standard =
                                   wdContext.createStandardElement();
                    wdContext.nodeStandard().addElement(standard);
so I get as many bool vars as required. I am not sure about the "invalidate()" method.
I thought, when using it like above, I could also use a 0:n cardinality for my checkbox contents. But even "validate()" won't enable the checkboxes on the webpage... hence I use 1:n.
Now I set up an onToggle Event for the checkbox, which looks like this:
if(wdContext.currentStandardElement().getBolStandard()==false){
          wdContext.currentStandardElement().setBolStandard(true);
     }else{
          wdContext.currentStandardElement().setBolStandard(false);
Unfortunatly this only works for all checkboxes, and furthermore, once checked, I can't reset the checkboxes.
I also tried to use the getLeadSelection() of my nodeUrows. But this returns always 1.
<b>Big Question goes here:
How can I address only one checkbox???</b>
thanx a lot for your patience and help...
Matthias

Answer 1

Hi armin et al,
thanx for all the messages - i followed different different approaches. Armins for instance.
So I put a boolean var in in my modelnode which "Rows" and bound it to the checked property of the celleditor checkbox. The bool var is called "bolStandard" in my case.
Now in the "CheckBox.onToggle" event, I declared:
if(wdContext.currentUrowsElement().getBolStandard()==false){
          wdContext.currentUrowsElement().setBolStandard(true);
     }else{
          wdContext.currentUrowsElement().setBolStandard(false);
The point is, the checkbox won't check, and the leadselection of the table jumps back to the first row.
What went wrong?
I did not set up any parameters for the event, like somebody here suggested...
I also did the wdDoModify like this (in firstTime):
// checkboxen
     IWDCheckBox cb = (IWDCheckBox) view.getElement("cb");
     cb.mappingOfOnToggle().addSourceMapping("checked", "newCheckedState");
thanx once more - points will be rewarded of course to every single helpful feedback,
matthias