Question

Never seen this before in ASP.NET development.
I’m trying to refactor out 40 single-page ASP.NET pages to code-behind style.

What does this code do?

// Validate required parameters (if "new", then nothing is required)
if (!this.IsNew())
{
  if (string.IsNullOrEmpty(_billId))
  {
    responseErrorNo = 4;
    Utils.SendError(respErrNum);
  }
}

Its on a single-page design ASP.NET page in the block in the Page_Load method.

On a code-behind page this code ( .IsNew) is not recognized. What am I missing here?
Is there an MSDN page on IsNew of the “page”?

update
Ok. This is my dumbkoff move of the day.
There was a little method hidding at the bottom of the server-side
was protected bool IsNew()

see comments about the inheritance point.
http://msdn.microsoft.com/en-us/library/015103yb.aspx

Answer 1

Have you done a search through all the source files for IsNew?

Some possibilities
1. This is a method inherited from a base class, if you have one of course
2. IsNew might be an extension method. http://msdn.microsoft.com/en-us/library/bb383977.aspx
3. IsNew is a member of the class