Question

Ok still learning here. If I have one form calling another form like below (only the code for the second form is listed) where the parent form is ParentForm and I make a private member _parentForm in teh child form (frmViewPastMeasures ) so I can use it all over my child form class. If when I call _parentForm.Method() from my child form and that method is trying to change properties in the original parent form…are those properties affected in the same parentform I called from? Does _parentForm = parentForm; link _parentForm to the exact same object as parentForm? Is the only time when that would not be the case be when I use the new keyword? I just trying to change properties from an outside form and I want to make sure I’m actually accomplishing this correctly.

namespace Photometer
{
    public partial class frmViewPastMeasures : Form
    {
        private frmPhotometer _parentForm;

        public frmViewPastMeasures(csFilter activeFilter, csInitialUsageSettings InitialUsageSettings, frmPhotometer parentForm)
        {
            _parentForm = parentForm;
        }
        private someOtherMethod()
        {
            _parentForm.method();
        }
    }
}

Answer 1

Yes, if you assign an object reference to a variable, that variable will point to the exact same object as the one to which the assigned reference pointed.