Type Initializer Error Thrown by linq2db InformixDataProvider when run in Web API Application

I’m testing linq2db for an Informix connection, it is working fine in a Windows Forms application, but when I tried to use the same code to connect from an ASP.NET Web API application it throws an exception when creating InformixTools.CreateDataConnection(…)

Apparently, it’s the same issue described here: https://stackoverflow.com/questions/30171835/type-initializer-error-thrown-by-linq2db-informixdataprovider-when-run-in-web-ap

I downloaded source code and I modified the line 128 in InformixDataProvider.cs (as described by quintopereira) and it’s working now.

Anyway, I’m attaching the project to reproduce the problem. I don’t want to make own fixes in linq2db to avoid problems when updating.

code.zip lib.zip

Exception message:
The type initializer for 'IBM.Data.Informix.IfxDecimal' threw an exception

Stack trace:
   en lambda_method(Closure )
   en LinqToDB.DataProvider.Informix.InformixDataProvider.GetNullValue(Type type) en C:\Desarrollo\coilvalidation\code\Linq2DB\Source\DataProvider\Informix\InformixDataProvider.cs:línea 128
   en LinqToDB.DataProvider.Informix.InformixDataProvider.OnConnectionTypeCreated(Type connectionType) en C:\Desarrollo\coilvalidation\code\Linq2DB\Source\DataProvider\Informix\InformixDataProvider.cs:línea 118
   en LinqToDB.DataProvider.DynamicDataProviderBase.GetConnectionType() en C:\Desarrollo\coilvalidation\code\Linq2DB\Source\DataProvider\DynamicDataProviderBase.cs:línea 41
   en LinqToDB.DataProvider.DynamicDataProviderBase.IsCompatibleConnection(IDbConnection connection) en C:\Desarrollo\coilvalidation\code\Linq2DB\Source\DataProvider\DynamicDataProviderBase.cs:línea 51
   en LinqToDB.Data.DataConnection..ctor(IDataProvider dataProvider, IDbConnection connection) en C:\Desarrollo\coilvalidation\code\Linq2DB\Source\Data\DataConnection.cs:línea 188
   en LinqToDB.DataProvider.Informix.InformixTools.CreateDataConnection(IDbConnection connection) en C:\Desarrollo\coilvalidation\code\Linq2DB\Source\DataProvider\Informix\InformixTools.cs:línea 43

Environment details

linq2db version: 1.9.1
Database Server: Informix 11.50.0000 FC8GE Database Provider: IBM.Data.Informix Operating system: Windows 10 Framework version: .NET Framework 4.6.2

Thanks in advance and best regards.

Julio S.

[ExzaSolutions]

Hi I fixed my issue,had the same error. So there is a tool called setnet that installs with informix sdk. If you open that tool there is a field CLIENT_LOCALE. I set that to EN_US.UTF8 and now it is working.

[sdanyliv]

Reproduced, thanks for sample project. Trying to figure out how to fix correctly.