iteration

adrian564

Hello all, I would appreciate any help that can be given. I'm new to c# and mostly develop in c++. I'm using Microsoft Visual Studio 2010 as my IDE. My question is I'd like to ouput cars from a car collection. I'm using a 3rd party DLL library. As far as I know the dll has 2 classes. They are CarCollection and Car. CarCollection has the following functions:

using System;
using System.Collections.Generic;

namespace CaraPartnersSdk
{
public class CarCollection
{
public CarCollection();

    public IEnumerable<Car> FindByName(string name);
    public Car GetByID(int id);
}

}

Car.cs:

using System;
using System.Collections.Generic;

namespace CaraPartnersSdk
{
public class Car
{
public Car();

    public string AlternateForm { get; }
    public Condition Condition { get; }
    public IEnumerable<Car> ConnectsToCars { get; }
    public bool HasBeenOpened { get; }
    public int ID { get; }
    public string Name { get; }
    public string OptionalAttributesXml { get; }
    public decimal Price { get; }
    public string Set { get; }
    public int Strength { get; }
}

}

All I'm trying to do is output each Car's name and ID which is in the dll. For now, I'm using a simple main class. I have no idea how to iterate through the CarCollection since it's not an array or actual collection. I'm doing CarCollection aCollection = new CarCollection(); When I use aCollection.FindByName() I get a message which does not help. After that I'm stumped. I know I have to use public IEnumerable<Car> FindByName(string name); from the CarCollection class but I have no idea how. I wish they passed the collection as an array because then I can do a simple for loop like for(int i = 0; i

Abhinav S

adrian564 wrote:

I get a message which does not help

Can you post the message here?

Me, I'm dishonest. And a dishonest man you can always trust to be dishonest.
Honestly. It's the honest ones you want to watch out for...

adrian564

Hello all, I would appreciate any help that can be given. I'm new to c# and mostly develop in c++. I'm using Microsoft Visual Studio 2010 as my IDE. My question is I'd like to ouput cars from a car collection. I'm using a 3rd party DLL library. As far as I know the dll has 2 classes. They are CarCollection and Car. CarCollection has the following functions: using System; using System.Collections.Generic; namespace CaraPartnersSdk { public class CarCollection { public CarCollection(); public IEnumerable<Car> FindByName(string name); public Car GetByID(int id); } } Car.cs: using System; using System.Collections.Generic; namespace CaraPartnersSdk { public class Car { public Car(); public string AlternateForm { get; } public Condition Condition { get; } public IEnumerable<Car> ConnectsToCars { get; } public bool HasBeenOpened { get; } public int ID { get; } public string Name { get; } public string OptionalAttributesXml { get; } public decimal Price { get; } public string Set { get; } public int Strength { get; } } } All I'm trying to do is output each Car's name and ID which is in the dll. For now, I'm using a simple main class. I have no idea how to iterate through the CarCollection since it's not an array or actual collection. I'm doing CarCollection aCollection = new CarCollection(); When I use aCollection.FindByName() I get a message which does not help. After that I'm stumped. I know I have to use public IEnumerable<Car> FindByName(string name); from the CarCollection class but I have no idea how. I wish they passed the collection as an array because then I can do a simple for loop like for(int i = 0; i { collection(i).getName(); } something like that, but I guess thats not the case. Please I would appreciate any help. Thanks. -Adrian

VCsamir

hi, this might be one of the way to solve it. you can use LINQ query to do it in a neat way IEnumerable carnames = from cars in car select cars.name; foreach(string cr in carnames) { //do whatever with cr } i feel linq is really a nice concept introduced.. infact i have become a fan of it. in above u can specify the 'where' condition also as per your need.. Hope this helps u... Regards Samir

adrian564

Hello, I'm still really confused, so I tried this

IEnumerable<string> carnames = from cars in Car
select cars.name;

The error I get is error CS1936: Could not find an implementation of the query pattern for source type 'CaraPartnersSdk.Robot'. 'Select' not found. I'm real confused I just want to print out the string name of the car. Please help. Best, Adrian

adrian564

Hello, I'm still really confused, so I tried this <pre> IEnumerable<string> carnames = from cars in Car select cars.name; </pre> The error I get is error CS1936: Could not find an implementation of the query pattern for source type 'CaraPartnersSdk.Robot'. 'Select' not found. I'm real confused I just want to print out the string name of the car. Please help. Best, Adrian

adrian564

Anyone? any suggestions? Maybe a helpful book or website? Thanks.

PIEBALDconsult

To enumerate an enumerator, all you need is a foreach statement. I'm also assuming that FindByName can take a wildcard. But, as you still haven't told us what error you were getting, we still don't know!

modified on Wednesday, April 7, 2010 11:29 PM