Web Forms :: How To Read Checkbox Values From Programmatically Created Checkboxes

I have a form that does a loop to create checkboxes. Here is the code in the loop:

LeftPosition+=120;
cbxDrives.Top = TopPosition;
cbxDrives.Left = LeftPosition;
cbxDrives.Text = d.Name;
CheckBox cbxDrives =
new
CheckBox();this.Controls.Add(cbxDrives);

This creates multiple check boxes on the form, and this works fine.

However, in the code behind for my button that the user clicks to execute the form, I cannot figure how how to read the values for the checkboxes. I've tried:

foreach (CheckBox cbxDrive
in cbxDrives)
{
}

but cbxDrives is not recognized.

I need to read through all of the checkboxes to see their values, so that the appropriate actions can be performed in the code behind.