How to remove ï¿½ï¿½ï¿½ï These special characters in string

Question

Hi reading a html file through stream reader and placing the result in to a string variable. but the string variable contains some invalid character like ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï I want to remove these character from my string variable how can i???. Please help me.

Suthish Nair · Answer

oops am sorry i missed ».

Vulpes · Answer

They don't look like BOMs to me. For example the BOM for a UTF-8 file is the three bytes 0xEF 0xBB 0xBF which typically displays as : ï»¿ However whatever they are the above code will filter them out :)

Suthish Nair · Answer

Its because of BOM - Byte Order Mark (BOM) i don't have much about this :). How you manipulating the file?

Vulpes · Answer

Well they're still characters junk or not :) If you don't know what characters to remove but you do know that all characters should be within the ASCII range 0 - 127 say then you can filter the string (s say) as follows: using System.Text; // ... StringBuilder sb = new StringBuilder(); foreach(char c in s) { if (c } s = sb.ToString();

Ajay · Answer

Actually these are all junk data. not special characters. These are all squre characters. So how to remove the squre characters in a string.

Soft Corner · Answer

Hi You can do this by using Regular Expression Pass your string variable to below method public static string RemoveSpecialCharacters(string str) { return Regex.Replace(str [^a-zA-Z0-9_.]+  RegexOptions.Compiled); }

How to remove "ï¿½ï¿½ï¿½ï" These special characters in string