Use foreach for form button controls

Question

To list all TextBoxes, do I need to list all controls?
Example
foreach (Control InitCtrl in this.Controls)

Can you be more specific?
Example
foreach (TextBox TxtBx in ?????)

Can it be done?
How?
Thanks

Answer 1

For example :

                foreach (TextBox txtBox in this.Controls.OfType<TextBox>())
                {
                    // code
                }