Linq collection Contains to OData Filter 'property' ´in´ (list of values)

[houbi56]

In the OData 4 standard there's an expression:
http://host/service/Products?$filter=Name in ('Milk', 'Cheese')

(http://docs.oasis-open.org/odata/odata/v4.01/csprd02/part2-url-conventions/odata-v4.01-csprd02-part2-url-conventions.html#sec_LogicalOperatorExamples)

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How do I write LINQ that gets interpreted to that?

var list = new List {"1" };
client.Filter(x => x.someprop == 2 && list.Contains(x.prop));

Throws exception:

Microsoft.OData.ODataException: The type 'System.Collections.Generic.List1[System.String]' is not supported when converting to a URI literal. at Microsoft.OData.Evaluation.LiteralFormatter.FormatRawLiteral(Object value) at Microsoft.OData.Evaluation.LiteralFormatter.FormatAndEscapeLiteral(Object value) at Microsoft.OData.Evaluation.LiteralFormatter.DefaultLiteralFormatter.FormatLiteralWithTypePrefix(Object value) at Microsoft.OData.Evaluation.LiteralFormatter.DefaultLiteralFormatter.Format(Object value) at Simple.OData.Client.V4.Adapter.CommandFormatter.ConvertValueToUriLiteral(Object value, Boolean escapeDataString) at Simple.OData.Client.ODataExpression.Format(ExpressionContext context) at System.Linq.Enumerable.SelectListIterator2.MoveNext()
at System.String.JoinCore[T](Char* separator, Int32 separatorLength, IEnumerable1 values) at Simple.OData.Client.ODataExpression.FormatMappedFunction(ExpressionContext context, FunctionMapping mapping) at Simple.OData.Client.ODataExpression.FormatFunction(ExpressionContext context) at Simple.OData.Client.ODataExpression.Format(ExpressionContext context) at Simple.OData.Client.ODataExpression.Format(ExpressionContext context) at Simple.OData.Client.FluentCommand.Resolve() at Simple.OData.Client.FluentCommand.GetCommandTextAsync(CancellationToken cancellationToken) at Simple.OData.Client.ODataClient.FindEntriesAsync(FluentCommand command, Boolean scalarResult, ODataFeedAnnotations annotations, CancellationToken cancellationToken) at Simple.OData.Client.FluentClientBase2.FilterAndTypeColumnsAsync(Task1 entries, IList1 selectedColumns, String dynamicPropertiesContainerName)

[object]

This is not yet supported by the library: Contains is only implemented for string operations. I am adding this feature to a wish list, will checkout how hard it is to implement.

[houbi56]

Did a quick and dirty draft implementation. Would you mind giving some comments on how you would like this functionality to be implemented?

houbi56@4ed219e

[msavaria]

@object Any development on this issue?