how to save array in file in c#

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本文介绍如何使用 C# 将单维或二维字符串数组保存到文本文件，并提供示例代码来读取文件内容。对于二维数组，演示了如何将其转换为单行字符串并保存。

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hi all,

i have single table and i want to save it in file

EX:

1 a b c d

2 q r t j

3 w j s r

thanks for help

Wednesday, March 17, 2010 4:28 PM

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Ahmed_Soft3

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95 Points

Answers

I am assuming its a single dimension string array.

Use the following

string[] table = { "1 a b c d", "2 q r t j", "3 w j s r" };
System.IO.File.WriteAllLines("c:\\test.txt", table);

If its in a 2d array, then use the following code

            string[,] dataTable = new string[3,4];
            
            ///Fill the table

            List<string> linesToWrite = new List<string>();
            for(int rowIndex = 0; rowIndex < 3; rowIndex++)
            {
                StringBuilder line = new StringBuilder();
                for(int colIndex = 0; colIndex < 4; colIndex++)
                    line.Append(dataTable[rowIndex, colIndex]).Append(" ");
                linesToWrite.Add(line.ToString());
            }

            System.IO.File.WriteAllLines("C:\\test.txt", linesToWrite.ToArray());

Thanks, A.m.a.L Dot Net Goodies
Don't hate the hacker, hate the code

Edited by A.m.a.L HashimMVP Wednesday, March 17, 2010 4:42 PM more code
Marked as answer by Liliane Teng Wednesday, March 24, 2010 10:24 AM

Wednesday, March 17, 2010 4:35 PM

A.m.a.L Hashim

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I have put array in hashtable by make value (array) Myhashtable.Add("MyKay", new string[0]);
- Marked as answer by Ahmed_Soft3 Wednesday, March 24, 2010 12:38 PM
Wednesday, March 24, 2010 12:38 PM

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Ahmed_Soft3

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Hello Ahmed,
Welcome to MSDN Form.
You can use StreamReader class to realize.Here is an simple example.I hope this could help you.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
namespace CA1
{
    class Program
    {
        static void Main(string[] args)
        {
           string[] table = { "1 a b c d","2 q r t j","3 w j s r" };
           System.IO.File.WriteAllLines("c:\\test.txt", table);

           StreamReader reader = new StreamReader("c:\\test.txt", System.Text.Encoding.Default);
           string[] values = reader.ReadToEnd().Split('\n');
           for (int i = 0; i <3; i++)
           {
                 System .Console.WriteLine(values[i]);
           }

        }
    }
}
Best regards!
Liliane Teng

Please mark the replies as answers if they help and unmark them if they provide no help. Thanks
- Marked as answer by Liliane Teng Wednesday, March 24, 2010 3:33 PM
Wednesday, March 24, 2010 12:57 PM

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Liliane Teng

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