HttpUtility.UrlEncode方法未解决

Question

I used this Code in .net 3.5

HttpUtility.UrlEncode("", new UTF8Encoding()).Replace('+', ' '); 

which worked fine, but I have compiled the project under .NET 4.0 and it is giving me this error: "The name 'HttpUtility' does not exist in the current context." .

I added both System.Web and System.Web.Extensions references. This has not resolved this error.

Answer 1

将目标框架形式从.Net Framework 4 Client Profile更改为.Net Framework 4