regex only letters and numbers csharp

Code Example - regex only letters and numbers csharp

                
                        Actually I found the issue, I was validating the string during the TextBox object's creation, instead of when it updates so there was no way for that code to be executed when it was needed. My bad
                    
                
 

csharp regex number only

                        
                                Regex

string input = "1-205-330-2342";
string result = Regex.Replace(input, @"[^\d]", "");  //number only
                            
                        
 

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