c# - Using a foreach loop to retrieve TextBox's within a GroupBox

Question

I have ten group boxes in a WinForm. Each group box contains 10 text boxes, and I have defined each TextBox name. How can I get each text box using a foreach loop?

Answer 1

 foreach(Control gb in this.Controls)
 {
       if(gb is GroupBox)
       {
          foreach(Control tb in gb.Controls)
          {
             if(tb is TextBox)
             {
                 //here is where you access all the textboxs.
             }
          }
       }
 }

But if you have defined each TextBox name What's the point to get each TextBox by a loop?

You could define a List<TextBox> to hold reference of each TextBox while creating them, then just go though the List to get access of each TextBox.