How to get all controls & how to get all controls of the specified type

One

The properties for accessing all controls in the ASP. NET page pages are:

Page.controls

The structure of the control is a tree structure.

Second, gets all the control instances of the specified type:

1. The recursive method defines:

Private voidGetcontrollist<t> (ControlCollection controlcollection, list<t> resultcollection)whereT:control {foreach(Control controlinchControlCollection) {            //if (control. GetType () = = typeof (T))            if(Control isT//This is cleanerResultcollection.add ((T) control); if(Control. Hascontrols ()) Getcontrollist (control.        Controls, resultcollection); }    }

2. Using the call:

    New List<literal>();    Getcontrollist<Literal>(Page.controls, allcontrols);     foreach (var in allcontrols)    {        //call for all controls of thepage    }

How to get all controls & how to get all controls of the specified type