How to Remove Non-Alphanumeric Characters Except Hyphens and Spaces from a String?

Removing Non-Alphanumeric Characters with Exception for Hyphens and Spaces

Need help removing all non-alphanumeric characters from a string, but want to keep hyphens and spaces? Here's how to achieve it:

Solution:

To achieve this, use a regular expression to replace all non-alphanumeric characters, other than hyphens and spaces, with an empty string. Here's the code snippet:

Regex rgx = new Regex("[^a-zA-Z0-9 -]");
str = rgx.Replace(str, "");

This regex pattern [^a-zA-Z0-9 -] includes a negation character (^) to indicate that any character that matches the pattern should be excluded. Within the pattern, [a-zA-Z0-9 -] matches all letters, numbers, spaces, and hyphens, so the negation [^a-zA-Z0-9 -] will match all characters that are not alphanumeric or hyphen/space characters.

By using rgx.Replace(str, ""), you replace all occurrences of non-alphanumeric characters with an empty string, effectively removing them from your string while maintaining hyphens and spaces.

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