maximum number of methods supported in C# class

[vytheese]

Just curiosity ;) , Did anyone have idea of how many methods a single C# class can allow ? I heard, it is compiler dependent If true, what is the maximum no allowed by the standard compiler ? Thanks, Vythees

[Sathesh Sakthivel]

vytheeswaran wrote:

how many methods a single C# class can allow ?

We can have as we can. For More Details: MSDN[^]

Regards, Satips.:rose:

[Colin Angus Mackay]

vytheeswaran wrote:

Did anyone have idea of how many methods a single C# class can allow ?

I think that if you ever reached that limit then you might want to seriously reconsider your design.

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[Colin Angus Mackay]

Where does that article answer the OP's question? Or did you just chuck some keywords in to Google and hit "I'm feeling lucky"?

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[vytheese]

Thanks for Info, But I read in one article that E-Bay once hits the compiler limit in max number of methods in single class. Thanks, Vythees

[martin_hughes]

I just had a search through MS's C# Comiler errors/warnings list http://msdn2.microsoft.com/en-us/library/ms228373(VS.80).aspx[^] and can't see anything that explicitly complains about too many methods being in a class.

[leppie]

Seeing Assembly metatokens takes the following form: 00 000000, where the former is the type, and the latter is the code, I would say the maximum number of methoddef's in an assembly would be limited to 24-bits, iow 16.7 million. Dunno if there is a limitation on a classes though.

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[Luc Pattyn]

when in trouble, switch to Win64. :)

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[led mike]

Colin Angus Mackay wrote:

I think that if you ever reached that limit then you might want to seriously reconsider your design.

or the switch/case limit or the if/elseif limit or the .... or if none of that makes sense to you try this[^]

[vytheese]

A nice research. Thanks, Vythees

[Dan Neely]

IIRC ebay is running its servers using c++ and ISAPI, not .net.

-- You have to explain to them [VB coders] what you mean by "typed". their first response is likely to be something like, "Of course my code is typed. Do you think i magically project it onto the screen with the power of my mind?" --- John Simmons / outlaw programmer

[vytheese]

Fiction : :) I may end up with Portablity issues with 32bit cousins. Not an real issue, but just to know the number. :wtf: Thanks, Vythees

[vytheese]

I agree, I think then there should be the same constraint exist in .NET class also. Thanks, Vythees

[vytheese]

Oh God, thats classic link. :) Thanks, Vythees

[Ed Poore]

There is a limit, I remember someone a while ago (I've got a feeling in this forum) hit a limit on the number of fields in anycase that they could include in a class.  Buggered if I can remember where it was or what it was :sigh:

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[leppie]

Not research, I know it from working with the spec :) And those values can be accessed from .NET 2 (nowadays).

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[leppie]

Maybe you are thinking about the parameter limit, that is 16383/4.

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[Ed Poore]

No, I'm pretty sure that someone managed to hit a limit on the number of fields that could be contained in a class.  I'll do some digging.

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[Sean Michael Murphy]

I let this run for an hour to get to 5000 before I gave up. Someone with more CPU and physical RAM than I have should run it and see where it ends...

using System;
using System.Collections.Generic;
using System.Text;
using System.CodeDom.Compiler;
   
namespace MethodCountLimitFinder {
   class Program {
      static void Main(string[] args) {
         Int32 methodCount = 1;
         Microsoft.CSharp.CSharpCodeProvider cscp = new Microsoft.CSharp.CSharpCodeProvider();
         ICodeCompiler icc = cscp.CreateCompiler();
   
         CompilerParameters cp = new CompilerParameters();
         cp.GenerateExecutable = false;
         cp.GenerateInMemory = true;
   
         CompilerResults cr = null;
         string pre = "using System;" + Environment.NewLine +
                  Environment.NewLine +
                  "namespace Tester {" + Environment.NewLine +
                  " class Test {" + Environment.NewLine;
         string post = " }" + Environment.NewLine +
                  "}";
         string inner = string.Empty;
   
         while (true) {
            inner += " public Int32 Method" + methodCount.ToString() + "() {" + Environment.NewLine +
                     " return 42;" + Environment.NewLine +
                     " }" + Envi

[DavidNohejl]

Sean Michael Murphy wrote:

while (true) { inner += " public Int32 Method" + methodCount.ToString() + "() {" + Environment.NewLine + " return 42;" + Environment.NewLine + " }" + Environment.NewLine; cr = icc.CompileAssemblyFromSource(cp, pre + inner + post); if (cr.Errors.Count > 0) break; methodCount++; if (methodCount % 10 == 0) System.Console.WriteLine(methodCount.ToString()); }

Sean Michael Murphy wrote:

Someone with more CPU and physical RAM than I have should run it and see where it ends...

No wonder, always use StringBuilder for string concatenation in a loop.

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