how to save strinbuilder in string

Question

1.00/5 (1 vote)

See more:

I want to save these records in a string to use it in other function. Here is the code I currently have:

C#

StringBuilder sb = new StringBuilder();
while (rdr.Read())
{
  sb.Append(((int)rdr["fnid_int"]).ToString());
  sb.Append("\n");
}

Posted 4-Jul-11 23:32pm

kami124

Updated 4-Jul-11 23:36pm

Pete O'Hanlon

v2

Add a Solution

4 solutions

Solution 1

string result = sb.ToString(); should do the trick.

Posted 4-Jul-11 23:32pm

Abhinav S

Updated 4-Jul-11 23:34pm

v2

Comments

Sergey Alexandrovich Kryukov 5-Jul-11 5:42am

Correct, but OP might not understand it as -- do use see ToString already in the answer? -- it is misused. My 5 anyway.
Please see my answer.
--SA

Solution 4

Your call to ToString does nothing as you discard the function result. Here is what to do: work with StringBuilder until you're completely done, at the very end convert result to string by string result = sb.ToString().

—SA

Posted 4-Jul-11 23:40pm

Sergey Alexandrovich Kryukov

Comments

Pete O'Hanlon 5-Jul-11 5:50am

It's a context thing. We, effectively, both said the same thing - hence the reason I showed the updated version of his StringBuilder code - I assumed he was capable of adding the result in himself. +5 anyway.

Sergey Alexandrovich Kryukov 5-Jul-11 5:56am

Thank you, Pete. I did not pay attention you explained ToString, but the OP's problem is different: weak understanding if simple assignment and function return (and most likely a lot more), so the assignment should be explained. I'll vote 5 for your answer.
--SA

Abhinav S 5-Jul-11 7:06am

Well somewhat similar to my answer - my 5.
:)

Sergey Alexandrovich Kryukov 5-Jul-11 12:54pm

Thank you, Abhinav.
--SA

Solution 3

string value=sb.ToString();

Pass this "value" into your function!!!

Posted 4-Jul-11 23:39pm

Deepthi Aravind

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)

Pete O'Hanlon · Accepted Answer · 2011-07-04T23:35:00

Solution 2

StringBuilder overrides the ToString() method to return a string, so you would return sb.ToString(); There are some areas that your code could be tightened up though; just like this:

C#

StringBuilder sb = new StringBuilder();
while (rdr.Read())
{
  sb.AppendFormat("{0}\n", rdr["fnid-int"]);
}

Posted 4-Jul-11 23:35pm

Pete O'Hanlon

Comments

Sergey Alexandrovich Kryukov 5-Jul-11 5:41am

I think OP's problem is misuse of the ToString.
Please see my answer.
--SA