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PIEBALDconsult wrote: I expect the OP's teacher only wants to prove that he's smarter than his students
The teacher may be shaded then by a cheating student.
Luc Pattyn [Forum Guidelines] [My Articles]
I only read code that is properly indented, and rendered in a non-proportional font; hint: use PRE tags in forum messages
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Lol guys Thank you very much for the help but actually this ain't for homework hehe, this is part of a payroll system that I am developing at work and with the deadline stress and from being tired because been programming 8 hours strait i couldn't find a solution for this so i turned to some help hehe thank you again guys.
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I have a text file
Each line is the record as shown below
000071000456789987000000008250000000000000000000
in top line :
00007 = id field
1000456789987 = sn field
000000008250000 = amount field
000000000000000 = blank field
The question is :
How can I read each line in that file?
help me please very important for me
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Member 4737022 wrote: How can I read each line in that file?
StreamReader()[^] should do it.
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another idea would be using the File.ReadAllLines method :P
this is easily found on google
Here we rest... So why not make the best of it?
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there is no need for loop with the ReadAllLines method.. It returns a string array containing all the lines of a file
Here we rest... So why not make the best of it?
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He said he was using this file as a database, which tend to be large. I'd personally prefer not to have an entire database in a string, whereas I can read a line, perform operations and discard of it keeping my memory footprint down.
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You can use StreamReader[^] class to read the file line by line.
If your fields are with fixed lengths you can use the String.Substring[^] method to extract the fields from the line. Here is an example:
string filePath = @"Path_to_your_file_here";
string line;
int idLength = 5, snLength = 13, amountLength = 15, blankLength = 15;
if (File.Exists(filePath))
{
StreamReader file = null;
try
{
file = new StreamReader(filePath);
while ((line = file.ReadLine()) != null)
{
string id = line.Substring(0, idLength);
string sn = line.Substring(idLength, snLength);
string amount = line.Substring(idLength + snLength, amountLength);
string blank = line.Substring(idLength + snLength + amountLength, blankLength);
}
}
finally
{
if (file != null)
file.Close();
}
}
I hope this helps.
Regards,
Nuri Ismail
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Very thanks mr nuri ismail
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You're welcome!
Regards
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use StreamReader
int id;
int sn;
double amount;
int blank;
StreamReader sr = new StreamReader("C:\FileFolder\myfile.txt");
String strInput="";
strInput=sr.ReadLine();
while ((strInput = sr.ReadLine()) != null )
{
try
{
id = int.Parse(strInput.Substring(0,5));
sn=double.Parse(strInput.Substring(5,13));
}
catch(Exception e)
{
}
}
NB. Just a learner so my code is not the best but there is a general idea
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Do you want to have all the records in memory at once? Or do you want to read each particular record based on its ID or SN (e.g. GetRecord ( 7 ) )?
What are you going to do with the data?
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hello everybody
I write one c# program for reading data record from an access database ant write each record to one line in text file and now I want to read data from each line in text file and show them on a form using labels or text boxes etc to check that the data on text file are equal to database records or not?
I am sorry if i can't describe as well as you want .
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Why not have the application that displays the data also get the data from Access? It's really not a difficult task.
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how do i change the filter to only give me users in my group i tryied memberOf='CN=GMDPortal,OU=IT,OU=ADM,DC=corp,DC=com' but it does not work i need to use a directorysearcher because i need to set search.PageSize = 4000; i have 3,000 users in this group
public static ArrayList GetAllADDomainUsers()
{
string domainpath = @"LDAP://DC=corp,DC=com";
ArrayList allusers = new ArrayList();
DirectoryEntry searchRoot = new DirectoryEntry(domainpath);
DirectorySearcher search = new DirectorySearcher(searchRoot);
search.Filter = "(&(objectCategory=person)(objectClass=user)(memberOf='CN=GMDPortal,OU=IT,OU=ADM,DC=corp,DC=com' )(!userAccountControl:1.2.840.113556.1.4.803:=2))";
search.PropertiesToLoad.Add("samaccountname");
search.PropertiesToLoad.Add("distinguishedName");
search.PropertiesToLoad.Add("description");
search.PropertiesToLoad.Add("displayName");
search.PropertiesToLoad.Add("pwdLastSet");
search.PropertiesToLoad.Add("whenChanged");
search.ReferralChasing = ReferralChasingOption.All;
search.PageSize = 4000;
SearchResult result;
SearchResultCollection resultCol = search.FindAll();
user ousr = new user();
if (resultCol != null)
{
for (
int counter = 0; counter < resultCol.Count; counter++)
{
result = resultCol[counter];
if (result.Properties.Contains("distinguishedName"))
{
ousr = new user();
ousr.dn = (string)result.Properties["distinguishedName"][0];
try
{
ousr.Description = (string)result.Properties["description"][0];
}
catch (Exception er)
{
ousr.Description = " ";
}
try
{
ousr.DisplayName = (string)result.Properties["displayName"][0];
}
catch (Exception er)
{
ousr.DisplayName = (string)result.Properties["samaccountname"][0];
}
try
{
ousr.pwdLastSet = DateTime.FromFileTime((Int64)result.Properties["pwdLastSet"][0]);
}
catch (Exception er)
{
ousr.pwdLastSet = DateTime.MinValue;
}
try
{
ousr.whenChanged = (DateTime)result.Properties["whenChanged"][0];
}
catch (Exception er)
{
ousr.whenChanged = DateTime.MinValue;
}
ousr.usersname = (string)result.Properties["samaccountname"][0];
allusers.Add(ousr);
}
}
}
return allusers;
}
}
public class user
{
public string dn;
public string usersname;
public string Description;
public string DisplayName;
public DateTime pwdLastSet;
public DateTime whenChanged;
}
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I did a project on windows in c #.net and when i opened the project after some days it is showing "Could not find type 'CrystalDecisions.Windows.Forms.CrystalReportViewer'. Please make sure that the assembly that contains this type is referenced. If this type is a part of your development project, make sure that the project has been successfully built".
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Assuming that you have tried fully building the project, what changes had you made to your PC between when it worked, and when it didn't?
BTW: Your subject may be descriptive, but try cutting it down - "Could not find CrystalReportViewer" would be better than typing you question twice, one in the subject and once in the body...
No trees were harmed in the sending of this message; however, a significant number of electrons were slightly inconvenienced.
This message is made of fully recyclable Zeros and Ones
"Rumour has it that if you play Microsoft CDs backwards you will hear Satanic messages.Worse still, is that if you play them forwards they will install Windows"
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What kind of subject is that!
The error means you need to add a reference to the required library. You need to learn how to use Visual Studio (assuming that is what you are using) - thus you shouldn't really be asking in this forum.
Just do the same thing you did when you first created the project some days ago.
Life goes very fast. Tomorrow, today is already yesterday.
modified on Wednesday, November 18, 2009 10:02 AM
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Add reference to the crystal reportviewer dll.
Just open the References Tree in the Solution explorer, delete the one which is in Yellow Exclamation Sign, and add it again.
Your Subject line should be something else than the body. Atleast a gist of the body.
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mehrdad333 wrote: i want to connect two or more webcams to program
Try asking the person who wrote the program you are using.
mehrdad333 wrote: its vital
Vital for what?
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Hi All, I need to know how many rows I have in a table where x condition meets, in sqlite database.
I want to print it on the screen, how do I do it.
"SELECT SUM(Call)FROM Hall_Call_Up WHERE Car = 3"
In other words, count the rows that are certain category and display on sreen.
Thanks
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Use Count in stead of sum
SELECT COUNT(*) FROM Table WHERE Condition
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Eduard, thanks much for your answer. Can you please tell how do i get that value and print it.
for example given condition meets 200 rows. how do I get that 200 and display it on the screen.
thanks a lot.
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