I have been programming for over 15 years now. I consider myself a very good programmer, but I understand (like all of us) there are things that I need to work on. One of these things is code repetition when dealing with conditions. I will give a generic sample:

if(condition1)
{
     //perform some logic
     if(condition2)
     {
          //perform some logic
          if(condition3)
          {
               //Perform logic
          }
          else
          {
               //MethodA(param)
          }
     }
     else
     {
          //MethodA(param)
     }
}
else
{
     //MethodA()
}

Now, I cannot make it easy by doing the following:

if(condition1 && condition2)
{

}
else
{

}

I cannot do this since I need to perform some logic if condition1 is true and before I test condition2.

Is there a way to structure if...else blocks to where if you need to call a method in each else blocks, you are not repeating yourself?