problems writing a list to binary file

I am trying to create a simple level editor where I can store the users selections as a list of integers and strings

here is my class code

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. public class SomeClass : MonoBehaviour
4. {
5.     public string name;
6.     public int power;
7.    
8.     public SomeClass(string newName, int newPower)
9.     {
10.         name = newName;
11.         power = newPower;
12.     }
13.    
14. }

then in another Script I have this

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. using System.Collections.Generic;
4. using System.IO;
5. using System.Runtime.Serialization.Formatters.Binary;
6. using System.Linq;
7. using System.Text;
8. using System.Runtime.Serialization;
9.  
10. public class Automate1 : MonoBehaviour
11. {
12.  
13.  
14.     public static void WriteToBinaryFile<T>(string filePath, T objectToWrite, bool append = false)
15.     {
16.         using (Stream stream = File.Open(filePath, append ? FileMode.Append : FileMode.Create))
17.         {
18.             var binaryFormatter = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter();
19.             binaryFormatter.Serialize(stream, objectToWrite);
20.         }
21.     }
22.  
23.     public static T ReadFromBinaryFile<T>(string filePath)
24.     {
25.         using (Stream stream = File.Open(filePath, FileMode.Open))
26.         {
27.             var binaryFormatter = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter();
28.             return (T)binaryFormatter.Deserialize(stream);
29.         }
30.     }
31.  
32.     void Start ()
33.     {
34.  
35.         List<SomeClass>  ff = new List<SomeClass>();
36.         ff.Add( new SomeClass("Harvey", 50));
37.         ff.Add( new SomeClass("Magneto", 100));
38.         ff.Add( new SomeClass("Pip", 5));
39.  
40.         WriteToBinaryFile<SomeClass>("C:\\someClass.txt",ff);
41.         SomeClass  test = MyBinary.ReadFromBinaryFile<SomeClass>("C:\\someClass.txt");
42.         Debug.Log (test);
43.  
44.  
45. }

but then i get an error: " No overload for method `WriteToBinaryFile' takes `2' arguments"

 

That seems weird. I've been doing some research and optional parameters are available since C# 4.0. I'm not an expert C# programmer, I'm learning it along with Unity.

I found this : http://stackoverflow.com/questions/199761/how-can-you-use-optional-parameters-in-c

Unity uses MonoDevelop for writing C# code, so it's not a Unity problem but Mono's. Do you know what version do you have? I have MonoDevelop 4.0.1 and Unity 5.0.1 and I tried this little piece of code :

Code (csharp):

1.  
2.     void Test(string first, string second = "default value") {
3.         Debug.Log (first+ " - " + second);
4.     }
5.  

And it works correctly.

 

Unity's version of Mono can get weird with optional parameters on generic methods. It's typically easier to overload the method instead. Have the two parameter method call the three parameter method with the default optional parameter.

 

No, Mono and MonoDevelop are two entirely different things. You can replace MonoDevelop with any other text editor; it has nothing to do with compilation errors in Unity.

--Eric

 

All i want to do is use writetobinaryfile and readfrombinaryfile to write and read a list of integers.

the error is in line

Code (CSharp):

1.  WriteToBinaryFile<SomeClass>("C:\\someClass.txt",ff);

 

ok I found the solution.
I just changed line 40 and 41 to this and it works

Code (CSharp):

1.         WriteToBinaryFile<List<SomeClass>>("C:\\someClass.txt",ff);
2.         List<SomeClass>  gg = MyBinary.ReadFromBinaryFile<List<SomeClass>>("C:\\someClass.txt");