Adding System.Web.Script reference in class library

Question

I am currently moving code from my app_code folder to a class library. I have tagged several methods with [System.Web.Script.Serialization.ScriptIgnore] attributes. My class library cannot see this namespace. My add references dialog cannot see this namespace. How do I properly use this tag from a class library?

Here is the error: The type or namespace name 'ScriptIgnoreAttribute' could not be found (are you missing a using directive or an assembly reference?)

Solution 1

The ScriptIgnoreAttribute class is in the System.Web.Extensions.dll assembly (Located under Assemblies > Framework in the VS Reference Manager). You have to add a reference to that assembly in your class library project.

You can find this information at top of the MSDN page for the ScriptIgnoreAttribute class.

Solution 2

You need to add a reference to System.Web.Extensions.dll in project for System.Web.Script.Serialization error.

Comments

[Jeremy McGee]

Nice one. System.Web.Script.JavaScriptSerializer is also in this assembly.

[argyle]

I love how the System.Web.Script.Serialization is in the System.Web.Extensions library.

[Amir]

it is not available in asp.net2

[Fiach Reid]

Make sure you are using .NET framework 4 not .NET Framework 4 client profile as the target framework, or System.Web.Extensions will not appear in the Add References dialog.

[Trasiva]

It's the year 2017, we're still in VS 2005 and this answer just saved my bacon. To infinity, and beyond!

[Mamdouh Saeed]

How can i use serailizer & deserializer in JScript.NET?