Encryption

Question

0.00/5 (No votes)

See more:

Hello friends,
I am using "CryptoStream" to read data from my encrypted file. If this file is empty it raises an exception. Now i want to check whether my file is empty or not.
Plz tell me the way.

Posted 22-May-10 0:19am

darora85

Updated 22-May-10 0:32am

Abhinav S

v2

Add a Solution

2 solutions

Solution 2

Looking at the msdn sample here, I noticed that they check if while(rdlen < totlen) as a while condition.

You have not provided any code here, so I cannot be sure - but I guess a condition like this should be sufficient to avoid null errors? You can always directly check if an object is null by doing an if condidition check against it.

Posted 22-May-10 0:36am

Abhinav S

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

J imran · Accepted Answer · 2010-05-22T00:29:00

Solution 1

Hi friend.
you can use System.IO namespace to provide filing functionality. to check the availability of file you must go as under

<br />
if(File.Exist("File path"))<br />
{<br />
//perform encryption function here in<br />
}<br />

Posted 22-May-10 0:29am

J imran

Comments

darora85 22-May-10 7:07am

thanks buddy.

J imran 22-May-10 9:04am

no problem...:)

William Winner 22-May-10 17:26pm

Reason for my vote of 2
while he marked it as an answer, it actually doesn't answer his question, which said if the file is empty. The language implies that the file exists, but has nothing in it. If that is the case in which the exception is being thrown, then this answer will not solve that problem.