Replace text between tags span in html with c#

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2.00/5 (1 vote)

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Hello guys. I am working on my Project in Windows Forms and I need to replace text between tags span in html Document. I have following Code written:

C#

string pattern = "<span class=\"nameLastname\">(.*)</span>";
string nameLastnamePattern = "<span class=\"nameLastname\">"+name+ lastname+"</span>";

System.IO.StreamReader objReader;
objReader = new StreamReader(System.IO.Directory.GetCurrentDirectory() + "\\intel\\main.html");
string content = objReader.ReadToEnd();
objReader.Close();

content = Regex.Replace(content,pattern, nameLastnamePattern);

StreamWriter writer = new StreamWriter(System.IO.Directory.GetCurrentDirectory() + "\\intel\\main.html");
writer.Write(content);
writer.Close();

I want to Replace for example "George" width "Dave" . But my code donn't work. Can anyone Help me with it ?

Posted 23-Dec-15 2:25am

dave_bulac

Updated 23-Dec-15 2:34am

Tomas Takac

v2

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W∴ Balboos, GHB 23-Dec-15 8:44am

When you have a "doesn't work" problem you should tell us what the "doesn't work" is; content of error message, if any; and what you do see.

Meanwhile - have you stepped through that part of the code in a debugger?
Have you considered that while HTML/CSS don't care about the number of spaces in a string, C# does?

dave_bulac 23-Dec-15 8:46am

code donn't changes. It stays the same

Thomas Daniels 23-Dec-15 8:46am

Please describe "not working". Do you get any errors, or unexpected output? In case of the latter, what's the input and how does the output look like?

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OriginalGriff · Answer 1 · 2015-12-23T04:01:00

Try this:

C#

public static Regex regex = new Regex(
      "(?<=<span class=\ \ \"nameLastname\ \ \">)(?<Name>.*)(?=</span>)",
    RegexOptions.Singleline
    | RegexOptions.CultureInvariant
    | RegexOptions.Compiled
    );
// This is the replacement string
public static string regexReplace = 
      "Dave";
// Replace the matched text in the InputText using the replacement pattern
string result = regex.Replace(InputText,regexReplace);

[edit]Remove the spaces between the backslashes - otherwise Markdown swallows parts of the regex...[/edit]