Solved

reuse instance - can't get format correct

Posted on 2006-07-20
4
236 Views
Last Modified: 2010-04-16
This is likely a silly question but I can't seem to figure out the format....

I am creating a FileInfo instance that I want to reuse in a loop...changing the file that I'm looking for information on.  I did not want to create a new instance for every file.  This is what I have so far.....I don't have my loop created but don't worry about that.... I'll get to that... the problem is the line:  file = FileInfo(strBakFileName);   Basically, I'm trying to reuse instance of file and set it to a new file name and then do a file.Exists on the new file name.  I've tried file = (FileInfo)strBakFileName and that does work....

                FileInfo file = new FileInfo(strCommissionsPath);
                               
                if (file.Exists)
                {
                    string strBakFileName = strCommissionsPath;

                    strBakFileName = strBakFileName.Insert(strBakFileName.IndexOf(".csv"), intCounter.ToString());
                    strBakFileName = strBakFileName.Replace(".csv", ".bak");
                    file = FileInfo(strBakFileName);

                    if (file.Exists)
                    {
                        intCounter = intCounter + 1;
                    }

Thanks so much for your help!
                }
0
Comment
Question by:babybird
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 24

Assisted Solution

by:Justin_W
Justin_W earned 100 total points
ID: 17148145
Sorry, but you can't reuse the same FileInfo instance for different files.
0
 
LVL 5

Accepted Solution

by:
paulb1989 earned 400 total points
ID: 17148148
why not scrap the use of FileInfo to check if the file exists completely and use File.Exists?
                               
                if (File.Exists(strCommissionsPath))
                {
                    string strBakFileName = strCommissionsPath;

                    strBakFileName = strBakFileName.Insert(strBakFileName.IndexOf(".csv"), intCounter.ToString());
                    strBakFileName = strBakFileName.Replace(".csv", ".bak");

                    if (File.Exists(strBakFileName)
                    {
                        intCounter = intCounter + 1;
                    }
                }

Make sure that you have using System.IO in your code.
0
 
LVL 24

Expert Comment

by:Justin_W
ID: 17148150
The only way to specify which file the FileInfo is associated with is via the constructor, so you can't "reload" the object after it is created.
0
 

Author Comment

by:babybird
ID: 17148465
I didn't know that was an option...

thanks to all for your help!!!
0

Featured Post

SharePoint Admin?

Enable Your Employees To Focus On The Core With Intuitive Onscreen Guidance That is With You At The Moment of Need.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Summary: Persistence is the capability of an application to store the state of objects and recover it when necessary. This article compares the two common types of serialization in aspects of data access, readability, and runtime cost. A ready-to…
This article aims to explain the working of CircularLogArchiver. This tool was designed to solve the buildup of log file in cases where systems do not support circular logging or where circular logging is not enabled
This is a high-level webinar that covers the history of enterprise open source database use. It addresses both the advantages companies see in using open source database technologies, as well as the fears and reservations they might have. In this…
Michael from AdRem Software outlines event notifications and Automatic Corrective Actions in network monitoring. Automatic Corrective Actions are scripts, which can automatically run upon discovery of a certain undesirable condition in your network.…

691 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question