Look at Chain of Responsibility pattern. All those flags and ifs are an anti-pattern.

>Here's how we avoid nested if's
>
>

>public bool ErrorChecker()
>{
>   bool OKToProceed = true;
>  if (error1)
>  {
>      OKToProceed = false;
>      Logerror("1");  
>}
>  if(OKTOProceed)
>  {
>      if (error2)
>      {
>        OKToProceed = false;
>         Logerror("2");         
>    }
>  }
>  if(OKTOProceed)
>  {
>     if (error3)
>    {
>       OKToProceed = false;
>        Logerror("3");    
>    }
> 
>  // etc, etc
>   } 
>return OKToProceed;
>}
>
>