how can I encode string in c#?

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how can I encode string in c#?

i add using system.web
and my code is:

C#

String TestString = "This is a <Test String>.";
String EncodedString = Server.HtmlEncode(TestString);

or
System.Web.HttpUtility.HtmlEncode
but i can't use this

Posted 10-Mar-13 21:57pm

e.v.r

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OriginalGriff 11-Mar-13 4:07am

Why not? What problem are you having?

e.v.r 11-Mar-13 4:09am

i have error for example this:
Error 2 The name 'HtmlEncode' does not exist in the current context

Prasad Khandekar 11-Mar-13 4:40am

Hello,

If you are using .NET Framework 4 then you should be using System.Net.WebUtility.HtmLEncode.

e.v.r 11-Mar-13 4:54am

Hello,
yes, I use .net framework 4, but there isn't in my VS.
for example my error is htmlencode or webutility is not in my VS

Prasad Khandekar 11-Mar-13 5:54am

Your code will have a import clause as using System.Net. HttoUtility is a class located in this namespace for dotnet version 4 & 4.5.

4 solutions

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/\jmot · Answer 1 · 2015-02-16T22:50:00

If  you can't use HtmlEncode then you can use Base64Encode Method<br />

Like.

C#

Encode


public static string Base64Encode(string plainText) {
  var plainTextBytes = System.Text.Encoding.UTF8.GetBytes(plainText);
  return System.Convert.ToBase64String(plainTextBytes);
}
Decode


public static string Base64Decode(string base64EncodedData) {
  var base64EncodedBytes = System.Convert.FromBase64String(base64EncodedData);
  return System.Text.Encoding.UTF8.GetString(base64EncodedBytes);
}

Ref.
http://stackoverflow.com/questions/11743160/how-do-i-encode-and-decode-a-base64-string[^]

RajeeshMenoth · Answer 2 · 2015-02-16T22:13:00

Solution 3

String Encoding in C#..

Eg:

1 )Full HTML Character Encoding in C#

2 )Html encoding in .NET class library

Posted 16-Feb-15 22:13pm

RajeeshMenoth

SumitChandra · Answer 3 · 2015-02-16T20:57:00

Solution 2

System.Web.HttpUtility.HtmlEncode("YOUR TEXT")

Posted 16-Feb-15 20:57pm

SumitChandra

Prasad Khandekar · Answer 4 · 2013-03-10T22:16:00

Solution 1

Server.HtmlEncode is a old method typically used in old ASP pages. You shoud use System.Net.WebUtility.HtmlEncode, it is supported in 4 & 4.5. For older versions use System.Web.HttpServerUtility.HtmlEncode.

Regards,

Posted 10-Mar-13 22:16pm

Prasad Khandekar

Updated 10-Mar-13 22:55pm

v3

Comments

e.v.r 11-Mar-13 4:20am

this name space is not in my vs.
this error is :
Error 1 The type or namespace name 'HttpUtility' does not exist in the namespace 'System.Net' (are you missing an assembly reference?)

Aarti Meswania 11-Mar-13 4:58am

add reference System.Net/System.Web

e.v.r 11-Mar-13 6:34am

Thank you

Aarti Meswania 11-Mar-13 6:36am

welcome! :)

TheRealSteveJudge 17-Feb-15 3:07am

5*