Wiring events...need advice

Question

I have a form with lots of checkboxes on it.

I want to loop through and wire all the checkboxes "checkedchanged" events to a custom method.

Can I loop through InitializeComponent() and wire it up? If so, can someone post some code?

Here is what i was thinking and hope to do. Please offer any advice or better way to do this.

      foreach (object obj in this.Controls)
        {
            if (typeof(obj) == System.Windows.Forms.CheckBox)
            {
                obj.click += new System.EventHandler(<custom method>)
            }
        }

Thanks

Daniel · Answer

Alan Thanks a million for the suggestion. I appreciate it. Here's what I did. I created a method and put the code there and made the call from the constructor after initizializecomponents is called. It seems to be working fine. Here's the code: private void CustomInitializeComponents() { //iterate tabpages collection foreach (Control ctrl in this.tabClassProdEng.TabPages) { //if tab page go through the controls on the tab page if (ctrl is TabPage) { //TabPage tb = (TabPage)cc; foreach (Control cb in ctrl.Controls) { //if checkbox then wire the event if (cb is CheckBox) { ((CheckBox)cb).CheckedChanged += new System.EventHandler(this.SaveQuestion); }//end if }//end foreach }//end if }//end for each }

Alan · Answer

Yes you can do something like that but I wouldn't put the code in the InitializeComponent() method because if you do you risk getting it overwritten by the designer the next time you make a change to the form's visual interface. Instead I'd put it either in the form's constructor (after the call to InitializeComponent()) or in Form_Load. I'd suggest the following code which is not very different from what you had: foreach (Control ctrl in this.Controls) { if (ctrl is CheckBox) { ((CheckBox)ctrl).Click += new System.EventHandler( ); } } This code assumes that all the CheckBoxes have been placed directly on the form. If they're inside some other container such as a panel then replace 'this.Controls' with 'panel1.Controls' or whatever.