xsd/xs pattern converted to vb.net System.Text.RegularExpressions.Regex.Replace(string,regex_expression,"")

This is quite simple
Convert the following xsd patterns to System.Text.RegularExpressions.Regex.Replace(string,regex expression,"")

<xs:pattern value="^[a-z|A-Z|0-9|\s\-_\#]*$" /> ' MetalDescription
<xs:pattern value="^[a-z|A-Z|0-9]+$"> 'idn
<xs:pattern value="^[a-z|A-Z|\s\-]+$"></xs:pattern> 'name.f
<xs:pattern value="^[a-z|A-Z|\s\-]+$"></xs:pattern> 'name.l
<xs:pattern value="^[a-z|A-Z|0-9|\s\/\#\,\.]+$"> 'seller address street
<xs:pattern value="^[a-z|A-Z|\s]+$"> 'seller address city
<xs:pattern value="^\d{5}([\-]\d{4})?$"> 'seller address zip
<xs:pattern value="^[a-z|A-Z|0-9]+$"></xs:pattern> 'vehicle plate

XSD file is used to validate xml stings, I am wanting to make sure the string is ok before placing it in xml file.