Avoid repeatation of code

Question

Hi ,

i have a project with 4 windows forms all of doing everything separate work . but they all a common thing in them .

  protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
        {

            if (keyData == (Keys.F2))
            {
                // call date form 
                    return true;
               
                
            }

            return base.ProcessCmdKey(ref msg, keyData);

        }

how can make sure that all the forms have this functionality but choose not to write same code 4 times . also i cannot use inheritance as all these forms already inherits from some other parent forms .

Answer 1

create another inheritance form in between.

BaseForm → FormA, FormB, FormC, FormD

BaseForm → BaseForm2 → FormA, FormB, FormC, FormD