How do I replace a duplicate double quotes with a single quotes

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I have a string that adds extra quotes and I would like to remove those double quotes with single quotes. I have tried different scenarios and I haven't got any luck. I know it is a small issue that I might be missing something.

Thanks for your help in advance.

What I have tried:

Below is the string array

''''testing1'''',''''testing2'''',''''testing3'''',''''testing4'''',''''testing5'''',''''testing6''''

Results should be like this

"testing1","testing2","testing3","testing4","testing5","testing6"

I have tried to do this

string output = Regex.Replace(Usernames, "''''", "");

The results became like this which is not what i want.

"testing1,testing2,testing3,testing4,testing5,testing6"

Posted 7-Jun-21 0:52am

Nkhanedzeni

Updated 7-Jun-21 5:30am

PIEBALDconsult

v2

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Richard MacCutchan · Accepted Answer · 2021-06-07T01:31:00

Solution 1

Your replacement string is empty. Try:

C#

string output = Regex.Replace(Usernames, "''''", "\"");

[edit]
Here is the actual code I used:

C#

string Usernames = "''''testing1'''',''''testing2'''',''''testing3'''',''''testing4'''',''''testing5'''',''''testing6''''";
Console.WriteLine("Input: {0}", Usernames);
string output = Regex.Replace(Usernames, "''''", "\"");
Console.WriteLine("Output: {0}", output);

And here is the resulting output:

./test
Input: ''''testing1'''',''''testing2'''',''''testing3'''',''''testing4'''',''''testing5'''',''''testing6''''
Output: "testing1","testing2","testing3","testing4","testing5","testing6"

[/edit]

Posted 7-Jun-21 1:31am

Richard MacCutchan

Updated 7-Jun-21 2:21am

v2

Comments

Nkhanedzeni 7-Jun-21 8:07am

Thanks, why is it adding the backslash or will it work like this?
"\"testing1\",\"testing2\",\"testing3\",\"testing4\",\"testing5\",\"testing6\""

Richard MacCutchan 7-Jun-21 8:16am

The code I gave you is not adding the backslash. See updated solution.

Maciej Los 8-Jun-21 9:13am

The backslash is in this case an escape character.

Maciej Los 8-Jun-21 9:13am

5ed!

Richard MacCutchan 8-Jun-21 9:17am

Thanks Maciej.