Subclassing an Existing DbContext for an Alternate Provider Causes Compilation Errors

[iUnknwn]

In Entity Framework Core 3.1, when subclassing an existing DbContext, it will generate an error if you're missing a constructor:

public MySqliteContext(DbContextOptions<MySqliteContext> options) : base(options)

However, this will type error, because the constructor of the base class is expecting type DbContextOptions<MyContext> for options, not DbContextOptions<MySqliteContext>.

This is discussed an in this issue, and the work around is to add a protected constructor in the base class. https://github.com/dotnet/efcore/issues/7533#issuecomment-353669263

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• ID: 7b011c7a-3534-78e3-b491-addd96fb5ba1
• Version Independent ID: 371826c5-3ef2-4eef-32e9-d55c777cd9d3
• Content: Migrations with Multiple Providers - EF Core
• Content Source: entity-framework/core/managing-schemas/migrations/providers.md
• Product: entity-framework
• Technology: entity-framework-core
• GitHub Login: @bricelam
• Microsoft Alias: bricelam