how loop through multiple checkbox in C#

Question

I have 100 checkbox in a winfrom. Their name is sequential like checkbox1,checkbox2 etc. I have a submit button in my winform. After clicking the submitting button, it check

Answer 1

foreach (var control in this.Controls) // I guess this is your form
            {
                if (control is CheckBox)
                {
                    if (((CheckBox)control).Checked)
                    {
                        //update
                    }
                    else
                    {
                        //update another
                    }
                }
            }