Steven Giesel • 9/9/2024

LINQ Joins on multiple columns in Entity Framework

This technical article details a specific compiler error encountered when writing LINQ left joins on multiple columns in Entity Framework. The author explains that the error occurs because the anonymous types used in the join's `on` clause must have identically named properties. The solution involves explicitly naming the properties to match, resolving the type inference issue. The post is a concise troubleshooting guide for C# and .NET developers working with Entity Framework.

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#c #linq #Entity Framework