StreamWriter无法在C＃控制台中写入文件

Question

I'm new to programming and C# is the language I'm learning. My homework instructions are:

Create a program named WritelnventoryRecords that allows you to enter data for items you sell at an online auction site and saves the data to a file. Create an Inventory class that contains fields for item number, description, and asking price.

The code I've written will not write to the text file, it's just blank. What am I missing?

using System;
using System.IO;
class Inventory
{
    static void Main()
    {
        Console.Write("How many items would you like to enter? ");
        FileStream file = new FileStream("ItemsSold.txt", FileMode.Create, FileAccess.Write);
        StreamWriter writer = new StreamWriter(file);
        int num = Convert.ToInt32(Console.ReadLine());
        int itemNum = 0;
        string desc;
        double price;

        for (int count = 0; count < num; ++count)
        {
            Console.Write("Enter an item number: ");
            itemNum = Convert.ToInt32(Console.ReadLine());
            Console.Write("Enter the item description: ");
            desc = Console.ReadLine();
            Console.Write("Enter the item price (no dollar sign): ");
            price = Convert.ToDouble(Console.ReadLine());
            writer.WriteLine(itemNum + "," + desc + "," + price);
        }
        writer.Close();
        file.Close();
        Console.ReadLine();
    }
}

Thank you for your help.

Answer 1

Your code works on my machine. If it's still not works, you can try following steps:

1. When open the file stream, use "FileMode.OpenOrCreate" flag.
2. Reset the file using "file.SetLength(0);" just after create the file steam.

3. Flush the buffer before close the file stream: "writer.Flush();"

   === EDIT ===

And yes, like @Preston Guillot posted, check if you are opening the right file.