|
edaindia wrote: a list of all possible exceptions
No.
FYI: The list of things that can go wrong in Windows would be infinite.
|
|
|
|
|
And more often than not, there's not a damn thing you can do about it.
.45 ACP - because shooting twice is just silly ----- "Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997 ----- "The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001
|
|
|
|
|
Isn't that called StackOverflow?
Never underestimate the power of human stupidity
RAH
|
|
|
|
|
Just put a try/catch block around everything that could fail, and there you have it.
.45 ACP - because shooting twice is just silly ----- "Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997 ----- "The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001
|
|
|
|
|
|
I have done plenty of googling and have gotten close to a solution but wanted to make sure I'm going about it the right way.
I have a data file which is a non delimited fixed field position file that has missing data. I basically want to read each line in and determine if a certain field is blank. If so I use another field in that same record to retrieve the missing data from the database. After getting the missing value I would like to use StreamWriter or StringWriter (not sure which) to write out each line to a new file with the updated field value.
Appreciate any advice you all may have on this subject.
Thanks,
Jason
|
|
|
|
|
I would advice you to do the following:
1. Open the input file
2. Open the output file and create StreamWriter for it
3. Read data line-by-line, and for each line do the check and write to the output file
You need StreamWriter.
The difference:
StreamWriter allows you to write contents to any stream: file, socket, etc;
Stream represents writeable file, socket or other stream (this can be also a memory, or string) - it's not convenient to write strings to stream, that's why you need StreamWriter.
StringWriter writes all contents to a string (in memory);
StringBuilder allows you quickly build string from parts; you needn't it here
|
|
|
|
|
Thanks for the steps and showing the difference between the different classes. Below is what I have so far and I think it will work. My new file contained the 111222333 string for all the missing data which was the desired result.
Thanks,
Jason
StreamReader sr = File.OpenText("C:\\Source.txt");
StreamWriter sw = File.CreateText("C:\\Test1.txt");
while (sr.Peek() != -1)
{
string strRecord = sr.ReadLine();
string strSurname = strRecord.Substring(0, 10);
string strFirstName = strRecord.Substring(11, 8);
string strPupilNum = strRecord.Substring(20, 9).Trim();
string strSSID = strRecord.Substring(373, 9).Trim();
if (strPupilNum == String.Empty)
{
// call db stored procedure to retrieve PupilNum based on SSID
StringBuilder sb = new StringBuilder(strRecord);
sb.Remove(20, 9);
sb.Insert(20, "111222333", 1);
strRecord = sb.ToString();
}
sw.WriteLine(strRecord);
} sw.Close();
|
|
|
|
|
Yeah, that's it.
Don't forget to dispose your StreamWriter and StreamReader .
And next time please wrap your code with <pre lang="C#"> ... </pre> tags
|
|
|
|
|
I am currently working on a simple game for the children in C# WPF. It uses the simple animation from Expression Blend. All that is done is a simple textblock falls in the apps and I wish to make a loop of it such that everytime the loops restarts that is the textblock falls the new contents are displayed to it. XML and LINQ to XML is what I plan to use.
The real problem is the storyboard codes are in XAML and it needs to be looped and added new features from the C# codes. I seem to have no idea how to accomplish that.
I would be grateful if anyone could help. Any favors will be appreciated.Than you in advance.
|
|
|
|
|
anishshrestha wrote: The real problem is the storyboard codes are in XAML and it needs to be looped and added new features from the C# codes
So what's the problem?
Storyboard myStoryBoard = (Storyboard)FindResource("myStoryBoard");
I know the language. I've read a book. - _Madmatt
|
|
|
|
|
hi,
i need to show selected country location through Google map with windows application, so i used "GMap.NET.dll" ,prior it was worked fine, but it is not working , could you please suggest me why it is not working ,and give me suggestion for better way to do this.
|
|
|
|
|
GMap doesn't work in India.
.45 ACP - because shooting twice is just silly ----- "Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997 ----- "The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001
|
|
|
|
|
what do you mean it doesn't work in India?
peace & serenity
|
|
|
|
|
It's called "humor".
.45 ACP - because shooting twice is just silly ----- "Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997 ----- "The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001
|
|
|
|
|
peace & serenity
|
|
|
|
|
Hi There
I am using Aspose.pdf to generate pdf documents.
The pdf document contains a table which is populated with data from a database.
I have the problem that if the table needs to continue to the next page, the pdf does not generate.
Is there any code that I need to include to allow the document to continue to a new page?
Regards,
|
|
|
|
|
hi,
you can use itextSharp.dll to generate pdfs ,this will get from sourceforge.net , and reference to your project , then write code like this
Document dc = new Document(PageSize.LETTER);
dc.NewPage();
|
|
|
|
|
Thanks, I give it a try
|
|
|
|
|
Just my 2c, I found itextSharp very easy to implement.
|
|
|
|
|
Hello everybody,
I have a file where some application is storing some values. I want to access to this file in read mode but when I try to open the file I have always the message that the process can't acces the file because it is being used by other application.
If I try to open this file with Microsoft excel I have an alert that says that the file is user by other application but I am allowed to open the file in read mode only.
How can I access the file with .net and advoid the exception if it is possible?
Thanks in advance
|
|
|
|
|
cidmi.dovic wrote: I try to open the file I have always the message that the process can't acces the file because it is being used by other application
Can you please post the code used, here ?
Found my answer helpful? Then vote for it. "A good programmer is someone who looks both ways before crossing a one-way street." -- Doug Linder
coolestCoder
|
|
|
|
|
FileInfo file = new FileInfo(ConfigurationSettings.AppSettings["FilePath"]);
using (FileStream fStream = file.OpenRead())
{
}
|
|
|
|
|
Try this:
FileInfo file = new FileInfo(ConfigurationSettings.AppSettings["FilePath"]);
using (FileStream fStream = file.Open(FileMode.Open, FileAccess.Read, FileShare.Read))
{
}
|
|
|
|
|
Yes, it works.
A lot of thanks!!!
|
|
|
|