How To Select One Item In GridView Via A CheckBox

See more:

C#

Good Day All,
I have this little issue with my Gridview.. if i check all the items it will send message but if i check only one item it will not send message unless I check the Item No One

see the code

  foreach (GridViewRow row in GridView1.Rows)
            {
                if (row.RowType == DataControlRowType.DataRow)
                {

                    CheckBox cb = (CheckBox)row.FindControl("Check");
                    if (cb.Checked == true)
                    {
                        if (cb != null && cb.Checked)
                        {
// a simple javascript that says Checked
    MyClass.MyAlert(this, "Checked", "123");
    }
                    }

  else
                    {
                        MyClass.MyAlert(this, "Not Checked", "123");
                        
                        return;
                    }
}
}

/*like i said before it worked perfectly fine if i check all the items, but if i check one items it will not work.... Am I missing something?.. Kindly Assist me

thanks for your valued time...i really do appreciate them
*/