CODEWITHSUNDEEP
c#
Oleg Vazhnev
Oleg Vazhnev

Reputation: 24057

how to transfer and use a lot of parameters of different types via function argument?

Somewhere inside my function I need to do something like that:

        smsg["isin"].set(ii.ISIN);
        smsg["client_code"].set(Constants.CLIENT_CODE);
        smsg["type"].set(1);
        smsg["dir"].set(order.Operation == Side.Buy ? 1 : 2);
        smsg["amount"].set(order.Lots);
        smsg["price"].set(textPrice);
        smsg["ext_id"].set(0);

set method has a lot of overloads it can accept int, string, boolean, DateTime etc. totally about 15 methods.

After refactoring I decided function to use just list of parameters ignoring other variables order ii etc. The problem is that I don't know how can I transfer this parameters via function arguments

    public uint ExecuteTransaction(Dictionary<string, object> parameters)
    {
        ....
        foreach (var parameter in parameters)
        {
            smsg[parameter.Key].set(parameter.Value);  // compile time error!
        }

Compiler doesn't know which overload to use and so I have such error:

The best overloaded method match has some invalid arguments

My Dictionary contains appropiate value for each parameter. So boolean parameters contain boolean value etc. That's why I declared Dictionary to contain general type object.

Thanks for your help!

Upvotes: 0

Views: 139

Answers (2)

danielQ
danielQ

Reputation: 2086

Well you can...

  1. Modify the set to accept an object parameter and let the class manage the types.
  2. Set in your foreach block the logic.

Example:

foreach (var parameter in parameters)         
{             
    // int example
    if (parameter.Value as int? != null)
        smsg[parameter.Key].set((int)parameter.Value);  // No error!         
}

Upvotes: 1

Viacheslav Smityukh
Viacheslav Smityukh

Reputation: 5833

You should implement the set(object value) method which will determine parameter type and call typed set(T value). This is only way to use set in this maner.

Upd: if you haven't access to set as it a library you can write extension method

public static class Ext
{
  public static void set(this YOUR_LIB_TYPE lib, object value)
  {
    if(value is int)
    {
      lib.set((int) value);
    }
    else if(value is string)
    {
      lib.set((string) value);
    }
    ...
  }
}

Upvotes: 0

Related Questions