Compatibility with System.Linq.Dynamic.Library

[jwperez1]

Is this backwards compatible with System.Linq.Dynamic.Library by Nathan Arnott? That lib seems to have disappeared and I am looking for a way to migrate my code. I think I see you started with a fork from there.

[StefH]

This library is indeed a fork from the deleted library from Nathan.

It should be compatible, except for some namespaces.

[jwperez1]

Awesome. I pulled it using nugit and the only thing I had to do was change the using to have the correct namespace and it builds perfectly. I get the error below when I run the app immediately after building:

•   [1] {"Could not load file or assembly 'Remotion.Data.Linq, Version=1.13.52.2, Culture=neutral, PublicKeyToken=0669cf0452175907' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)":"Remotion.Data.Linq, Version=1.13.52.2, Culture=neutral, PublicKeyToken=0669cf0452175907"}  System.Exception {System.IO.FileLoadException}
  

The odd thing is, if I run the app again (without building it), it works without an error. The error occurs the first time I make a call to the dynamic linq api. This is the stacktrace:

at System.Reflection.RuntimeModule.GetTypes()
at System.Reflection.Assembly.GetTypes()
at System.Linq.Dynamic.Core.CustomTypeProviders.DefaultDynamicLinqCustomTypeProvider.<>c.b__3_1(Assembly x)
at System.Linq.Enumerable.d__162.MoveNext() at System.Linq.Enumerable.WhereEnumerableIterator1.MoveNext()
at System.Collections.Generic.HashSet1.UnionWith(IEnumerable1 other)
at System.Collections.Generic.HashSet1..ctor(IEnumerable1 collection, IEqualityComparer1 comparer) at System.Linq.Dynamic.Core.CustomTypeProviders.DefaultDynamicLinqCustomTypeProvider.GetCustomTypes() at System.Linq.Dynamic.Core.ExpressionParser.CreateKeywords() at System.Linq.Dynamic.Core.ExpressionParser..ctor(ParameterExpression[] parameters, String expression, Object[] values) at System.Linq.Dynamic.Core.DynamicExpressionParser.ParseLambda(Boolean createParameterCtor, ParameterExpression[] parameters, Type resultType, String expression, Object[] values) at System.Linq.Dynamic.Core.DynamicExpressionParser.ParseLambda(Boolean createParameterCtor, Type itType, Type resultType, String expression, Object[] values) at System.Linq.Dynamic.Core.DynamicQueryableExtensions.Where(IQueryable source, String predicate, Object[] args) at System.Linq.Dynamic.Core.DynamicQueryableExtensions.Where[TSource](IQueryable1 source, String predicate, Object[] args)
at DashboardDemo1.Model.Criteria.Filter.FilterIt[U](SearchCriteria criteria, IQueryable`1 query)

This happened for the first time this morning (I have had the app in prod since February). I was hoping migrating to your api would fix it but it did not. Do you have any idea what is causing this?

[StefH]

Which dotnet framework do you use ?

And regarding this CustomTypeProvider error, it could be that some small business logic is different when loading external libraries.

[jwperez1]

I use 4.5.1

[jogibear9988]

When we look in the code from Nathan: (he deleted his branch) https://github.com/jogibear9988/System.Linq.Dynamic/blob/master/Src/System.Linq.Dynamic/DynamicLinqTypeProvider.cs
we use AppDomain.CurrentDomain.GetAssemblies(); the same in https://github.com/StefH/System.Linq.Dynamic.Core/blob/master/src/System.Linq.Dynamic.Core/DefaultAssemblyHelper.cs

The difference is this line: assemblies = assemblies.Where(x => !x.IsDynamic).ToArray();

But do we need that ".ToArray" ?

[jogibear9988]

Maybe also we could make the default "CustomTypeProvider" exception friendly.
See: #39

[jogibear9988]

i think this could now be closed?

[StefH]

@jwperez1 ; can you please verify ?

[StefH]

Closing issue.

[mayankgaur]

Is it resolved I am also facing same issue?

[jogibear9988]

What issue?

[mayankgaur]

@jogibear9988 I am having below issue

System.IO.FileLoadException: 'Could not load file or assembly 'System.Linq.Dynamic.Core, Version=1.0.17.0, Culture=neutral, PublicKeyToken=0f07ec44de6ac832'. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)'

here is my code details

Installed nuget package details