Keeping the arraylist value to the next program run.

Keeping the arraylist value to the next program run.

• Mark Net

  Hi,
  if you mean maintain the data in memory then you'll have to leave a program running with that memory shared so that when you run your program it will have somewhere to fetch that data.
  
  If you mean save it to disk then you can serialize the arraylist (XMLSerializer) or you can save it to a database.
  
  The fastest way to load your data is, of course, to leave the data in RAM but this can be a waste if you aren't going to use it for a long time.
  
  
  

• Snadge

  The following link provide an example that solves the problem:

  http://www.c-sharpcorner.com/Code/2003/Nov/StockPaperTrader.asp

  
  

• Desire

  In addition to the previous post, I suggest you to use the application config file (app.config) to store your data.
  
  
  

• Przemysław Rokicki

  take a look at this, you could specify the additional types to use. I would also use a generic list too if you are running .NET 2.0. Otherwise maybe use an array of another type, like string[] or int[] or whatever it maybe

  http://forums.microsoft.com/MSDN/ShowPost.aspx PostID=801237&SiteID=1

  so from that example, when you are trying to serialize/deserialize, see what happens if you add an additional type of "ArrayList". Does this work

  
  
  

• Markus Sch.

  Ok, Thanks.

  But now I have a problem, the serialization method has succeed except when the serialized object contains an ArrayList. It throws the " InvalidOperationException ".

  The ArrayList is vey important in my application and really I need to serialize it, so how can I do so

  Note , the article "XmlSerializer.Serialize Method (Stream, Object) " contains the foolowing line:

  "Note The XmlSerializer cannot serialize the following: arrays of ArrayList and arrays of List."!!

  Please help me, what can I do

  Thanks,

  Aya.

  
  

• BeerBecks

  The best thing you can do is by serializing the full List with een Xml Serializer or Bineary: How to serialize an object to XML by using Visual C#.
  
  More information about serialization can be found here:
  

  • .NET Serialization, Part 1
    
  • .NET Serialization, Part 2
  • XML Serialization in C#
  • XML Serialization in .NET
  • XML Serialization Using C#
  • Customize XML Serialization using IXmlSerializable

  
  
  
• Keeping the arraylist value to the next program run.