Merge a FIles in C#.net

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Hi friends,
How to append a files in the C#.net? I have a Input Folder and 4 txt files in the Input Folder. i want to merge/Append a files in the same folder and Appended files will delete after appending .

Folder name: Test
File Names are
1) 2012_03_05_05:50:30.txt
2) 2012_03_05_05:50:35.txt
3 ) 2012_03_05_05:50:40.txt
4 ) 2012_03_05_05:50:45.txt. here there are 4 files in the Test Folder . I want to append a files into 1st file and Automatically. 2nd,3rd,4th file should be deleted after Appending or merge a files .How can i achieve this?

Posted 5-Mar-12 1:44am

naraayanan

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Chandrakantt 5-Mar-12 7:51am

You will not be able to create a file which has ":" in its name

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Chandrakantt · Answer 1 · 2012-03-05T02:16:00

you can use below code which takes 4 files and create a single file after appending all data of all files.

static void Main(string[] args)
{
     string[] Filename = new string[4] {@"F:\Test\2012_03_05_055030.txt", @"F:\Test\2012_03_05_055035.txt",
                           @"F:\Test\2012_03_05_055040.txt", @"F:\Test\2012_03_05_055045.txt"};

     string text = System.IO.File.ReadAllText(Filename[0]);
     int count = 1;
     while(count < Filename.Length)
        text += System.IO.File.ReadAllText(Filename[count++]);

      // Write the string to a file.
      System.IO.StreamWriter file = new System.IO.StreamWriter(@"F:\\Test\\Test.txt");
      file.Write(text);
      file.Close();

     //Delete the file
      count = 0;
      while (count < Filename.Length)
         File.Delete(Filename[count++]);
}

Chandrakantt · Answer 2 · 2012-03-05T18:18:00

Code which appends data to the first file itself. As my previous answer creates a new file but this solution appends to the first file itself.

static void Main(string[] args)
{
    string[] Filename = new string[4] {@"F:\Test\2012_03_05_055030.txt", @"F:\Test\2012_03_05_055035.txt",
                        @"F:\Test\2012_03_05_055040.txt", @"F:\Test\2012_03_05_055045.txt"};

    string text="";
    int count = 1;
    while(count < Filename.Length)
        text += System.IO.File.ReadAllText(Filename[count++]);

    // Write the string to a file.
    System.IO.StreamWriter file = new System.IO.StreamWriter(Filename[0]);
    file.Write(text);
    file.Close();

    //Delete the file
    count = 1;
    while (count < Filename.Length)
        File.Delete(Filename[count++]);
}

Merge a FIles in C#.net

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