read and write in file

tek 2009

how to fill a standard list dictionary <> from a text file????

Dictionary<int, Customer> customers = new Dictionary<int, Customer>();
Customer cust1 = new Customer();
customers.Add(cust1.ID, cust1);
customers.Add(cust2.ID, cust1);
customers.Add(cust3.ID, cust1);

and what is the other command to read and write in a small file size to share filestream????

Abhinav S

membre123 wrote:

how to fill a standard list dictionary <> from a text file????

You will need to parse your text file to get a key value pair and then add them to your dictionary. Using an xml file for this might actually be better than a text file. To read and write a file, you should go to msdn.

tek 2009

thank you for your answer, if you can give me a quick example to analyze the file, and thank you, please I really need it

Abhinav S

You will need to write your own logic for this (once you decide on the structure of your text file).

riced

membre123 wrote:

how to fill a standard list dictionary <> from a text file????

Here's a little sample - it has no error handling or anything nice about it.

using System;
using System.Collections.Generic;
using System.IO;

namespace ConsoleApplication1
{
class Customer
{
public int ID;
public string name;
}

class Program
{
static void Main(string[] args)
{
var Customers = new Dictionary<int, Customer>();
using (StreamReader fs = new StreamReader(@"C:\Stuff\theInputFile.txt"))
{
string dataLine;
while ((dataLine = fs.ReadLine()) != null)
{
string[] s = dataLine.Split(',');
int id = int.Parse(s[0]);
Customer c = new Customer();
c.ID = id;
c.name = s[1].Trim();
Customers.Add(c.ID, c);
}
}

     foreach (var  item in Customers)
     {
        Console.WriteLine("ID: {0} Customer {1}", item.Key, item.Value.name );
     }
     Console.ReadLine();
  }

}
}

What you have to do depends entirely on the declaration for Customer and the layout of the input file. My input file looks like this:

1, Jet Black
2, Hugh Cornwell
3, Joe Strummer
4, Sid Vicious

membre123 wrote:

and what is the other command to read and write in a small file size to share filestream????

I don't know what this means.

Regards David R --------------------------------------------------------------- "Every program eventually becomes rococo, and then rubble." - Alan Perlis The only valid measurement of code quality: WTFs/minute.

tek 2009

think you very mutch, that what's i need :)