Question

Which code executes faster and why

((Form)controls.Owner).Text = langfile.ReadString(
       FormName, ((Form)controls.Owner).Name, ((Form)controls.Owner).Text);

or

Form form = (Form)controls.Owner;
form.Text = langfile.ReadString(FormName, form.Name, form.Text);

Answer 1

The second form may be very slightly faster (only one execution-time check instead of three) but that’s almost certainly going to be insignificant.

However, the readability of the second is much much better than the first – so go with the second form, for that reason. Your order of development should be:

• Write the cleanest, most maintainable code you can
• Measure the code to find out if it performs well enough
• If it doesn’t, profile it to find out where the time is being spent
• If profiling doesn’t suggest a change in design (which it often will), then and only then should you micro-optimize code into a less readable form