c# - Switching between between main and pop-up form -

how can lock (and make faded) parent form while child form active? tried make child form topmost made visible , can still edit parent form. want unable operate on main form while child form running in vs2012, c#. code used call second form...

private void checkbutton_click(object sender, eventargs e) {     form2 newform = new form2(this);     newform.show(); } 

one simple way use showdialog() instead of show() on child form. prevent interaction main form. neat way of passing results. there many other ways, of course.

example:

private void checkbutton_click(object sender, eventargs e) {     form2 newform = new form2(this);     newform.showdialog(); } 

see msdn further details: https://msdn.microsoft.com/en-us/library/c7ykbedk(v=vs.110).aspx