Available C# Namespaces

Survey Solutions uses C# language for writing the expressions, such as enabling or validation conditions. The C# language organizes classes of objects into namespaces. To use a class from a namespace the C# program must have access to the corresponding namespace. Survey Solutions provides access to the following namespaces:

System (except these specific properties: DateTime.Now, DateTime.UtcNow, DateTime.Today)
System.Collections
Systems.Collections.Generic
System.Linq
System.Linq.Expressions
System.Linq.Queryable
System.Text.RegularExpressions

You can click on the name of the namespace to see which classes, functions, etc. the namespace avails for the user. System.Linq.Queryable is technically a class, documented here.

Some classes contained in the available namespaces are prohibited for security reasons, these include all of the following:

System.Activator
System.AppContext
System.AppDomain
System.Console
System.Environment
System.GC

In Addition to the above C# namespaces Survey Solutions avails some specialized functions to the users, such as GpsDistance() or ContainsAny(), which are based in its own namespace.