Disable all texboxes, datetimepicker, comboboxes programatically

is there a way where I can disable all texboxes, datetimepicker, comboboxes in a form load?

I have a condition in my form_load like this:

    private void frmTWLeasing_Load(object sender, EventArgs e)
        {
            //this.Text = sTitle;
            this.txtNinja1.Text = sEnable;
            if (sEnable == "Disabled")
            {

                disable all textboxes, datetimepicker, comboboxes or gridviews
            }
            else
            {
               enable all textboxes, datetimepicker, comboboxes or gridviews
            }
        }

I have so many textboxes, datetimepicker, and comboboxes in this form including a datagridview, so is there any syntax where I can call all textboxes, datetimepicker, comboboxes so that I can disable this at one time? It's hard to disable it one by one.. Hope you can help me guys Thanks in advance!!