How to replace dynamic string values in asp.net?

问题

In my application requirement are to replace text with line break. Mine code is

pageText = pageText.Replace("<td style=\"width:23.0769230769231%;\">", "<br>");

Here width value is dynamic which is different for different pdf pages. How to replace this whole string with line break by using string.Replace or using Regex ?

回答1:

You want a regex which will replace the string: "<td style=\"width:X;\">" with "<br>" where X is any number?

Console.WriteLine(Regex.Replace(input, "<td style=\"width:\\d+\\.?\\d*%;\">", "<br>"));

.NET fiddle here: https://dotnetfiddle.net/30QCRP

回答2:

Try this:

  string pattern = "<(.*?)>";
  string replacement = "<br>";
  Regex rgx = new Regex(pattern);
  string result = rgx.Replace(input, replacement);

Or yo could be more specific if you start with this:

string pattern = "<td style=(.*?)>";

来源：https://stackoverflow.com/questions/34859351/how-to-replace-dynamic-string-values-in-asp-net