Comments on: C# Read Text File Line-by-Line

By: C# – Lendo um arquivo texto linha a linha | Tomás Vásquez - Blog

C# – Lendo um arquivo texto linha a linha | Tomás Vásquez - Blog — Thu, 15 Jul 2010 00:17:01 +0000

[...] código se baseou no exemplo do colega timm, mas dei uma simplificada, deixando o código bem mais [...]

By: john

john — Sun, 11 Jul 2010 22:42:27 +0000

IS there a way to read from a txt file line by line and string each individual line For example:
Lets say line one from the file is birthday
i want it to string birthday as birthdate then go to the next line and string as something else.

Please help!

By: nguyen phuoc duy

nguyen phuoc duy — Tue, 06 Jul 2010 21:10:55 +0000

i have a project:
" create index index on a text file, for creating an index, the user will be requried to specify the name of the file on which the index needs to be created and the name of the index file. if index has already been created on a file, a user should not be required to create it again the next time an operation is to performed on the file..
and load the files by index file
i'm learn programming in C#, 3 months ago
this project required write in windowapplication.
help me! thanks so much

By: nicolas

nicolas — Mon, 05 Apr 2010 19:38:54 +0000

Hi Timm,

Is it possible to have this code read all line in a csv file like:

HD,dtv,bill,1234
CA,021502011,1234567890,0,12.45,,emmanuel de la cruz,las lomas,san juan,pr,00921
CA,023424555,3422354524,0,453.98,,ninette fonseca,rexile,bayamon,pr,00957

and select a field value from each line and sum it starting from the 2nd line?

Thanks in advanced.

By: Jim

Jim — Mon, 15 Mar 2010 17:50:53 +0000

I have a CSV file that I open w/ C# via inline = rdr.ReadLine();While (inline != null) wrtr.writeline(blah blah….Wrtr.closeHow can I insert a new column in position number 27?

By: timm

timm — Tue, 02 Mar 2010 14:40:06 +0000

@Jovit, here's a code snippet that may do what you want. You'll need to add error-handling, check to ensure the input files are the same length, strip any whitespace, etc. This also wouldn't be the best approach for very large files, but hopefully you get the idea.

string[] lines1 = File.ReadAllLines( "file1.txt" );
string[] lines2 = File.ReadAllLines( "file2.txt" );
string[] lines3 = File.ReadAllLines( "file3.txt" );
StringBuilder sb = new StringBuilder();
int count = lines1.Length;
for (int i = 0; i < count; i++)
{
string line = String.Format( "{0} , {1} , {2}", lines1[i], lines2[i], lines3[i] );
sb.AppendLine( line );
}
File.WriteAllText( "output.txt", sb.ToString() );

By: jovit

jovit — Tue, 02 Mar 2010 04:00:40 +0000

hello, i'm a student studying C# because of our final project..can anyone help me please about merging three text files which are from saved points gathered from zedgraph to be separated by comma..
for example

file1.txt contains
1
2
3
file2.txt contains
4
5
6
file3.txt contains
7
8
9
through which i need to have an output of

1 , 4 , 7
2 , 5 , 8
3 , 6 , 9
…thank you in advance.. this is very urgent and important..if you have any codes available..tnx.

By: Hightechrider

Hightechrider — Sat, 02 Jan 2010 04:12:49 +0000

A using() statement on the StreamReader would make this shorter and neater.

By: zezo

zezo — Thu, 29 Oct 2009 06:45:03 +0000

I need to get the line previous of the current line

there are any way to do this ???

By: Zaman

Zaman — Wed, 21 Oct 2009 09:37:12 +0000

Thanks….it works….