Raising event when the checkbox of a webbrowser is checked in C# -

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i want raise event when checkbox checked in web browser. here have come with:

   public class htmlcheckboxargs : eventargs    {       public guid elementguid;    }     public delegate void checkboxchangeeventhandler(object sender, htmlcheckboxargs e);     public event checkboxchangeeventhandler checkpressed;      void oncheckpressed(htmlcheckboxargs args)     {         if (checkpressed != null)             checkpressed(this, args);     }      protected void checkboxevents()      {         htmlelementcollection elements = webbrowser1.document.getelementsbytagname("input");         foreach (htmlelement el in elements)         {             htmlcheckboxargs checkbargs = new htmlcheckboxargs();             if (el.getattribute("type") == "checkbox")             {                     checkbargs.elementguid = guid.parse(el.id);                     el.attacheventhandler("onclick", (sender, args) => oncheckboxclicked(el, checkbargs));              }         }     }      public void oncheckboxclicked(object sender, eventargs args)     {         oncheckpressed((htmlcheckboxargs)args);     }

the problem have fact way raise event when check box clicked. want event raised when check box checked.

try this:

public partial class form1 : form {     public form1()     {         initializecomponent();         webbrowser1.documentcompleted += new webbrowserdocumentcompletedeventhandler(webbrowser1_documentcompleted);     }      private void form1_load(object sender, eventargs e)     {         webbrowser1.documenttext = "<html><body><input type=\"checkbox\" id=\"chk\" value=\"some\">some thing</body></html>";     }      void webbrowser1_documentcompleted(object sender, webbrowserdocumentcompletedeventargs e)     {         foreach (htmlelement el in webbrowser1.document.all)         {             if (el.getattribute("type") == "checkbox")             {                 el.attacheventhandler("onclick", (send, args) => onelementclicked(el, eventargs.empty));             }          }      }      private object onelementclicked(htmlelement el, eventargs eventargs)     {         if (el.getattribute("checked") == "true")         {             messagebox.show("checked");         }         return false;     } }

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