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I have string with special characters.so how to
replace special characters in c# like "<[^>]+/\'.{}()#$*@!:;?>."
or in sql at once.
Posted 10-Sep-12 1:06am
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Solution 1

using System.Text.RegularExpressions;
public string RemoveSpecialCharacters(string str)
{
    return Regex.Replace(str, "[^a-zA-Z0-9_.]+", "", RegexOptions.Compiled);
}
 
It is tested Ok. Hope you find your solution.
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v2
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Solution 2

try:
string dirty = "Dirty sql_ > uni^#@ unicode!";
string clean = Regex.Replace(dirty, @"([^a-zA-Z0-9_]|^\s)", string.Empty);
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v2
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Solution 3

You just need to loop through the string and replace the values. Try using this function:
public static string fnRemoveSplChars(string strMyString) {
   StringBuilder sb = new StringBuilder();
   foreach (char c in strMyString) {
      if ((c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z') | || (c >= 'a' && c <= 'z') ) {
         sb.Append(c);
      }
   }
   return sb.ToString();
}
 

--Amit
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v2
Comments
prabu19 at 12-Mar-14 0:40am
   
what is the use of => this symbol in c# .net

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