Question

I have an idea that sounds like it might work but I’m not entirely sure, so looking for advice as to whether this can be achieved and how.

On my web form, i have a bool value named ‘error’.

There are a number of things that need to happen on a page for it to be successfully loaded.

I could write code like this:

bool thisSuccess = DoThis();
if(!thisSuccess)
    then error;

bool thatSuccess = DoThat();
if(!thatSuccess)
    then error;

if(error)
  FailoverActions();

and so on.

Of course that would be wholley inefficient so I thought it may be posible to create a delegate of some kind where the code would look something like this:

error = DoThis();

… and some kind of trigger here that called a function when error = true;

Apologies for the lack of precise detail but this is new ground for me.

---

Update

Thanks to everyone for their great ideas.

The reason that there’s little detail is that i’m very inexperienced and what I’ve found to date with .net is that although there are many ways to crack an egg, there’s generally some better than others.

I appreciate your experienced views.

Thanks again.

Answer 1

First – having your methods return true or false is a questionable practice – it looks like you should be using exceptions to handle this, especially if errors are relatively rare.

Sample code:

try
{
    DoThis();
    DoThat();
}
catch(DoingThingsException ex)
{
    FailoverActions();
    //throw; //?
}

As for a quick solution, one option is short-circuiting:

bool success = DoThis() && DoThat() && DoTheOther();
if(!success) FailoverActions();