How to check whether checkbox is checked or not and to get label if checked

Hi,
I've used checkboxgroup, and i'm populating it dynamically using attribute node & attribute value.. like this
IPrivateTestView.IWelcomNode wNode =wdContext.nodeWelcom();
     IPrivateTestView.IWelcomElement wEl,wE2,wE3;
     wEl=wNode.createWelcomElement();
     wNode.addElement(wEl);
     wEl.setWelValue("Welcome Boards");
     wE2=wNode.createWelcomElement();
     wNode.addElement(wE2);
     wE2.setWelValue("Traditional Welcome");
     wE3=wNode.createWelcomElement();
     wNode.addElement(wE3);
     wE3.setWelValue("Photograph");
now i want to check whether checkbox is checked and how many checkbox has been checked and then i want that label values of checked boxes.. so pls help me out. if possible give me some sample coding...

CheckBoxGroup.texts -> Welcom.WelValue
In controller method (e.g. action handler):
IWelcomNode node = wdContext.nodeWelcom();
for (int i = 0; i < node.size(); ++i)
IWelcomElement e = node.getWelcomElementAt(i);
if (node.isMultiSelected(i))
String text = e.getWelValue();
/* checkbox #i is selected and variable "text" contains the text */
Armin

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refer this pdf,its very helpful
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How to check whether checkbox is checked or not and to get label if checked

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