Reducing if statements when calling other functions

Question

I have a function that calls a lot of other functions from different objects. Each function has to return true before calling the next one. As you can see I am using too many if statements. How can I improve the code and make it neater? Thanks

bool ISOKToDoSomthing()
{
    boo retVal = false;

    retVal = ObjA.CheckVersion(oldVersion);

    if(retVal)
    {
         retVal = objB.CheckUserRight();
    }

    if(retVal)
    {
          retVal = ObjC.ISDBExist();
    }

    if(retVal)
    {
          retVal = OjbD.ISServerUp(ServerName);
    }
    //tons of similar code as above
    ......... 
    return retVal;
 }

Answer 1

return 
    ObjA.CheckVersion(oldVersion) &&
    objB.CheckUserRight() && 
    ObjC.ISDBExist() && 
    OjbD.ISServerUp(ServerName);

Answer 2

My advice: do nothing to this code without a clear business case for making the change.

Your code is clear, obvious, likely correct, easy to maintain and easy to debug. Why on earth would you want to change it in any way? Spend your time adding value by fixing bugs and adding features, not by changing working code unnecessarily. When your boss asks you "so what did you do today?" the answer should not be "I increased our schedule risk to by making unnecessary cosmetic changes to correct, working, already-debugged code".

Now, if there really is a problem here, the problem is likely not that the code is hard to read, but rather that the code rigidly encodes what ought to be a user-configurable business process. In that case, create an object called "Workflow" that encodes the business process, and an engine which evaluates an arbitrary workflow. Then construct an instance of that object that represents the desired workflow based on input from the user.

That actually adds value for the user; the user cares not a bit whether you use nested "if" statements or not.