How to replace " with \" in string builder

Question

1.00/5 (2 votes)

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Hi,

I am using string builder, I want to replace " with \" can anyone help me out...

Ex:

String ex="testing "is" always good";

I Need output as : testing is \" is \" always good

Thanks in advance...

Posted 25-Mar-11 20:05pm

sathya4260

Updated 25-Mar-11 20:32pm

v2

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Albin Abel 26-Mar-11 4:06am

How this work String ex="testing "is" always good"; without an escape ?. It throws compiler error.

Ankur^\m/ 29-Jun-13 1:57am

You can create such string using StringBuilder. Convert it to a string and you will see the text like that.
I know the post is too old to reply so was checking out similar posts on web.

Albin Abel 26-Mar-11 4:15am

or you want the input string like this? string ex=@"testing ""is"" always good";

2 solutions

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Sandeep Mewara · Answer 1 · 2011-03-25T20:19:00

Solution 1

Try something like:

C#

StringBuilder sb = new StringBuilder();
// to keep double quotes in it, it was escaped by '\'
sb.Append("Some text in here with \"this\" in double quotes");
sb.Replace(@'"', @'\"');

UPDATE:
Based on the updated question, OP needs:

String ex="testing "is" always good";
//I Need output as : testing is \" is \" always good

For this, it sounds like, he wants to have a extra back slash here. No idea why and now I am not going to ask, so try:

C#

StringBuilder sb = new StringBuilder();
// to keep double quotes in it, it was escaped by '\'
sb.Append("Some text in here with \"this\" in double quotes");
sb.Replace(@'"', @'\\"');

Posted 25-Mar-11 20:19pm

Sandeep Mewara

Updated 25-Mar-11 23:22pm

v3

Comments

sathya4260 26-Mar-11 2:30am

It tried it dude its not working...

Sandeep Mewara 26-Mar-11 2:52am

Can you elaborate 'not working'?

Sandeep Mewara 26-Mar-11 2:53am

Did you DEBUG and see that what is the final string formed?

Sandeep Mewara 26-Mar-11 2:56am

Updated the answer.

[no name] 26-Mar-11 3:00am

Nice One. My 5 For you Sandeep.

sathya4260 26-Mar-11 5:17am

This line makes me error

sb.Replace(@'"', @'\\\"');

Sandeep Mewara 26-Mar-11 5:21am

What error? I typed it based on my memory. I said something like that... can't you debug and resolve the error by yourself? Already I have no idea why would someone want a back slash before quotes to display the string.

BTW, I see the thing. I already gave a '@' and then escape sequnce too. Updating my answer. Recheck in 2 min.

sathya4260 26-Mar-11 9:06am

I need to save the string in the DB!

#realJSOP · Answer 2 · 2011-03-25T23:46:00

Solution 3

Is this so you can put it into a database? If so, you're doing what they call "escaping" a character, and you need to do this:

C#

StringBuilder sb = new StringBuilder("This is a ""test"" string");
sb.Replace("\"", "\"\"");

If not, I can't think of any reason you'd want to do this, but you need to do this:

C#

StringBuilder sb = new StringBuilder("This is a ""test"" string");
sb.Replace("\"", "\\\"");

Posted 25-Mar-11 23:46pm

#realJSOP

Comments

Ankur^\m/ 29-Jun-13 2:05am

I ran into a similar prolem while creating a JSON string using StringBuilder. First one still doesn't create a valid JSON string (though it will escape quotes making it a valid string) but the second one does.
5!