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Converting multiple files to single files

Posted By:nishithraj       Posted Date: December 24, 2009    Points: 10    Category: File Operation    URL: http://www.dotnetspark.com  
 

Many times we may require to convert multiple files into single file.

We can achieve this by Csharp. We need to implement the below code for that.

 

private void ConcatenateFiles(string strDestinationFileName, string strHeaderText, params string[] sourceFiles) 
{
    System.IO.StreamWriter swFileWriter = default(System.IO.StreamWriter);
    System.IO.StreamReader stFileReader = default(System.IO.StreamReader);
    string strSourceFile = null;
   
    try {
       
        //Create the desitnation file
        if (File.Exists(strDestinationFileName) == true) {
            File.Delete(strDestinationFileName);
        }
        swFileWriter = new System.IO.StreamWriter(strDestinationFileName, true);
       
        foreach (var strSourceFile in sourceFiles) {
            //Write the header string on the top of each file contents
            swFileWriter.WriteLine(strHeaderText);
            try {
                //Open the source file in read mode
                stFileReader = new System.IO.StreamReader(strSourceFile);
                //Append content of the current file in the destination file
                swFileWriter.Write(stFileReader.ReadToEnd() + Environment.NewLine);
            }
            finally {
                if ((stFileReader != null)) {
                    stFileReader.Close();
                    stFileReader = null;
                }
            }
        }
    }
    catch (Exception ex) {
    }
    finally {
        //Handle Exception here
        //Close swFileWriter stream
        if ((swFileWriter != null)) {
            swFileWriter.Flush();
            swFileWriter.Close();
            swFileWriter = null;
           
        }
    }
}

     

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