Server.HtmlEncode(strValue); is the answer.. Unless..
You want to call it from a static method (and we always do… 
We have two main options:
System.Web.HttpContext.Current.Server.HtmlEncode(s trValue);
And then System.Web.HttpUtility.HtmlEncode (my preferred method..) Why?
Because it also has methods to encode Url’s and you can get the data as a string, or byte array (nice for marshalling or persisting to a data store.. )
