how to append data in text file in new line ?

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i want make a form to input data using four textbox
and by clicking on button want to concate all four data using '|' operator.
like 1|abcd|gfd|989898 and want to save this string in to text file in new line

for example,
text file data....(data.txt)

1|abcd|ahm|989898
2|efgh|vad|545465
3|jhfd|jhf|356242

now if i want to insert 4th record like 4|dfdf|gfd|545421
in a new line...

please give me a proper solution....

Posted 2-Jan-12 7:14am

PKriyshnA

Updated 2-Jan-12 7:21am

Mehdi Gholam

v2

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Wendelius · Accepted Answer · 2012-01-02T07:21:00

Solution 1

One way is to create a stringbuilder and use it to create the string. Then use AppendAllText[^] to create the file. For example:

C#

StringBuilder sb = new StringBuilder();

sb.AppendFormat("{0}|{1}|{2}|{3}", "text 1", "text 2", "text 3", "text 4").AppendLine();
try {
   System.IO.File.AppendAllText(@"C:\temp\test.csv", sb.ToString());
} catch (System.Exception ex) {
}

Posted 2-Jan-12 7:21am

Wendelius

Updated 2-Jan-12 7:24am

v2

Comments

Manfred Rudolf Bihy 2-Jan-12 13:54pm

A valid solution so have a five!
I'd still prefer String.Format in this case with a new line literal at the end of the format string though!

Cheers!

Wendelius 2-Jan-12 13:57pm

Thanks :) Yep, <codestring.format< code=""> is also a perfectly viable solution. Happy New Year! :)

Sergey Alexandrovich Kryukov 2-Jan-12 23:02pm

I hope you don't forget this literal is system-dependent.
Happy New Year!
--SA

Manfred Rudolf Bihy 3-Jan-12 8:33am

A good point you made there, SA and a happy new year to you too!

PKriyshnA 3-Jan-12 10:08am

thnx Mr.Mika Wendelius :)

Wendelius 3-Jan-12 10:09am

You're welcome :)

PKriyshnA 3-Jan-12 10:17am

i have another query....
i store string in text file,
now i made a form to store values in text file as a string as above..
and on clicking submit i want to get changes to my google map
coz i fetch that data in google map..for individual location.
but problem is that i do not get changes on map instantly.

and in vs 2010 i got pop up message
like
this file has been modified outside of source editor.
do you want to reload it ??
yes, yes to all, no, no to all

i used three files
default.aspx for display map with javascript
data.aspx it consist form to store new data
data.txt to store data as a database

Give me a proper solution

Wendelius 3-Jan-12 10:23am

As this is a different thing and most likely requires knowledge on areas where I'm not able to help, I'd suggest that you post it as a new question to the forum. This way your question is better seen by all persons answering the questions.

Best regards,

mika

PKriyshnA 3-Jan-12 10:26am

ok thanks a lot to responding me...

Wendelius 3-Jan-12 10:27am

No problem at all :)