c# - Access Dynamically Created Controls in a TabPageControl -

i creating bunch of usercontrols each in tab in tabcontrol. problem i'm having need access value controls. have no idea how this.

string q; foreach (tabpage tp in tabcontroler.tabpages) {     filter f = tp.controls.find("filter",true); //not working @ all.     q += f.querry; } 

when creating control, add name it:

filter filter1 = new filter(); filter1.name = "filter1"; 

if winforms , filter1 name of filter control, be:

if (tp.controls.containskey("filter1")) {   filter selectedfilter = (filter)tp.controls["filter1"]; }  debug.write(selectedfilter.value);