how to add files from 2 dir to a fileInfo

Question

1.00/5 (1 vote)

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Hello ,
i have a foreach loop for DirectoryInfo in which i am getting 2 directory .

so in this loop i want to assign all the files in both directory into single FileInfo.
fileInfo[] FILE =null;
foreach(Directoryinfo ...)
{
FILE = dirinfo.getfiles();
}

but at the end i am not able to store files from both the dir.
the files from 2nd Dir is replacing the files of 1st Dir in FILE.

please help me.

Posted 12-Jun-12 0:08am

rohit24c

Updated 1-Jun-18 6:06am

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3 solutions

Solution 3

Okay, if I am understanding this correctly, you have 2 directories (folders) and you want the file info from both directories to list in one document. So, this program will list all the files in one directory, then list all the files in the second directory all in one csv or txt file. -
Here is a very simple (basic) solution for what you are trying to do:

using System;
using System.IO;

namespace ConsoleApplication1 
{
    class Program
    {
        static void Main(string[] args)
        {
            DirectoryInfo A = new DirectoryInfo("c:/Bank/TestFolderA");
            FileInfo[] a = A.GetFiles("*.*", SearchOption.AllDirectories);

            DirectoryInfo B = new DirectoryInfo("c:/Bank/TestFolderB");
            FileInfo[] b = B.GetFiles("*.*", SearchOption.AllDirectories);

            using (System.IO.StreamWriter file = new StreamWriter(@"c:\Bank\TestFolderC\TestResults1.csv"))
            {
                foreach (FileInfo x in a)
                {
                    Console.WriteLine(@"Copying {0}, {1}, {2}, {3} ", x.DirectoryName, x.Name, x.Extension, x.Length);
                    file.WriteLine("{0}, {1}, {2}, {3} ", x.DirectoryName, x.Name, x.Extension, x.Length);
                }

                foreach (FileInfo y in b)
                {
                    Console.WriteLine(@"Copying {0}, {1}, {2}, {3}", y.DirectoryName, y.Name, y.Extension, y.Length);
                    file.WriteLine("{0}, {1}, {2}, {3}", y.DirectoryName, y.Name, y.Extension, y.Length );
                }
            }
        }
    }
}

I Hope this helps with your situation and maybe help someone else in the future.

Posted 1-Jun-18 6:07am

Member 12695777

Comments

Richard MacCutchan 1-Jun-18 12:44pm

Answered SIX years ago.

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Reza Ahmadi · Accepted Answer · 2012-06-12T00:19:00

Solution 1

hi,
you need to use AddRange rather than '=', like this:

XML

List<FileInfo> FILE = new List<FileInfo>();
            DirectoryInfo[] Ddd;

            foreach (DirectoryInfo dirInfo in Ddd)
                FILE.AddRange(dirInfo.GetFiles());

Use a List to enable AddRange. In addition, I'v presumed that you will fill Ddd with you DirectoryInfos.

Cheers

Posted 12-Jun-12 0:19am

Reza Ahmadi

Updated 12-Jun-12 0:22am

v2

Comments

rohit24c 12-Jun-12 9:03am

thanks buddy it works :)

Reza Ahmadi 12-Jun-12 10:51am

Your welcome!

Oshtri Deka · Accepted Answer · 2012-06-12T00:21:00

Help yourself with temporary list:

C#

FileInfo[] fileInfosArray;
List<fileinfo> tempList = new List<fileinfo>();

foreach(DirectoryInfo di in yourDirInfoCollection)
{
    tempList.AddRange(di.GetFiles());
}

fileInfosArray = tempList.ToArray();

Btw, this line of your code was the problem:

C#

FILE = dirinfo.getfiles();

It means SET FILE to become array of FileInfos from current directory,
while (as I can see from your question) you wanted to
ADD array of FileInfos from current directory to FILE.