C# 我该如何使用这个方法？

Question

Original: I am using if statements in many methods. My original code works. But, it would be nice to create a method for them so I can call it every time I want to use it.

private void method()
{
  if (page_name == "SpecificPageName")
  {
      if (!TableHasElements)
      {
         // A: do something
         return;
      }
      else if (role != instructor)
      {
         // B: message("Access Denied")
         return;
      }
  }
  **// C: Open Page**
}

I would like to create a method for the if statements: However, when I make a method and call the method it should be able to run "C" when A and B conditions are not met.

private void methodIWouldLikeToCall()
{
    if (!TableHasElements)
    {
        // A: do something
        return;
    }
    else if (role != instructor)
    {
        // B: message("Access Denied")
        return;
    }
}
private void method()
{
    if (page_name == "SpecificPageName")
    {
        methodIWouldLikeToCall();
    }
    // C: Open Page**
}

Answer 1

Your new method needs to return a result that will enable you to decide whether or not to continue with the original method, eg

private bool methodIWouldLikeToCall()
{
    if (!TableHasElements)
    {
        // A: do something
        return true;
    }
    else if (role != instructor)
    {
        // B: message("Access Denied")
        return true;
    }

     return false;
}

private void method()
{
    if (page_name == "SpecificPageName")
    {
        if (methodIWouldLikeToCall())
        {
            return;
        }
    }
    **// C: Open Page**
}

You may want to reverse the use of true and false if that is more natural in the circumstances. You might also remove the nesting in the original method and use a single if statement with && , if that's appropriate.