View Full Version : C# Help

09-11-2008, 01:43 PM

I am new to C# and I am having some problems with an program that I have written using from code snippets from other websites. My source file has 6000+ rows of data. I want the program to search each line within the source file. When it finds a row that contains "_DS_TIME=": 1) I want to split the line into an array, 2) locate and convert the 4th and 5th segments of that array to and INT32, 3) I then want to add 86400 to those values, 4) followed by creating a new string that contains the same content as the old row, but replacing the 4th and 5th values with the new values (old value + 86400), 5) then I want to write this new line to a different text file.

If the loop does not find the "_DS_TIME=" within the row, then I write the entire row to the new text file with no changes.

When I run this program, it cuts off several rows of data that are in the source file, but not in the new text file.


using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

namespace AutoDateTimePMMVTest1
class Program
static void Main(string[] args)
FileStream stream = new FileStream(@"C:\Documents and Settings\g032753\Desktop\test.ipj", FileMode.Open);
StreamReader reader = new StreamReader(stream);
StreamWriter writer = new StreamWriter(@"c:\Documents and Settings\g032753\Desktop\test2.ipj");

string line;
Int32 starttime;
Int32 endtime;
string newline;

while ( ( line = reader.ReadLine()) != null )
if (line.Contains("_DS_TIME="))
string[] exploded = line.Split(',');
starttime = Convert.ToInt32(exploded[3]);
endtime = Convert.ToInt32(exploded[4]);
starttime += 86400;
endtime += 86400;
newline = exploded[0] + ',' + exploded[1] + ',' + exploded[2] + ',' + starttime + ',' + endtime + ',' + exploded[5];

10-01-2008, 04:32 AM
After your loop, you'll need to flush the writer with: writer.Flush();
Also, don't forget to Close() the writer.