Can't replace text on string in C#

Question

I have string like:

          Student 12:00AMLeoPan        Final points        
<!--<div class='icon displayOn' ><span onclick=';' title=''></span></div>-->0.5
      &nbsp;         2.00<!--<div class='icon'><spanonclick='' title=''></span></div>-->

I want to replace string StartWith , and string &nbsp to "" values.

I tried with my code:

string finalResult = Regex.Replace(abc, "<!--<div" + ".*</div>-->&nbsp;", "")
                          .Replace("<!--<div" + ".*</div>-->", "")
                          .Replace("&nbsp;", "");`

But Regex.Replace can't replace.

How to remove this string? Thanks.

Updated 1:

Thanks, @Mark.

I tried with: .Replace("", "").

And it remove all:

0.5   2.00.

Result only: Student 12:00AMLeoPan Final points.

You can see I have two have start with: .

But it replaces all. And want final result to show like:

Student 12:00AMLeoPan Final points 0.5   2.00

[Don't parse HTML with regex](http://stackoverflow.com/questions/1732348/regex-match-open-tags-except-xhtml-self-contained-tags) — Rob, Jun 17 '16 at 04:37
Also beware that doing .* on html tags will do a greedy match and find the outer most tags that match the pattern. Use .*? to do a non greedy match. — WhoIsRich, Jun 17 '16 at 05:02

Mark · Accepted Answer · 2016-06-17T05:07:40.357

6

Regex.Replace returns a string, so your 2nd and 3rd Replace calls are actually calling String.Replace, which doesn't support regex. Don't chain the calls - call Regex.Replace explicitly each time, e.g.

string r1 = Regex.Replace(abc, "<!--<div.*?</div>-->&nbsp;", "");
string r2 = Regex.Replace(r1, "<!--<div.*?</div>-->", "");
string finalResult = Regex.Replace(r2, "&nbsp;", "");

Update: As mentioned by @WhoIsRich in a comment on the question, the regex was modified to be non-greedy.

edited Jun 17 '16 at 05:07

answered Jun 17 '16 at 05:02

Mark

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Thanks, @Mark. I read a comment from #WholsRich. And your answer resolves my question. – Ave Jun 17 '16 at 05:10

Can't replace text on string in C#

1 Answers1