DapperLib / DapperLib/Dapper.Contrib

Field 'Id' doesn't have a default value when use InsertAsync or UpdateAsync

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Dominant language
C#
Stars
293
Forks
109
PR merge metrics
No merged PRs in 30d

Description

[ExplicitKey] is used but get error "Field 'Id' doesn't have a default value" when use InsertAsync or UpdateAsync

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the reported error with an entity using [ExplicitKey] through InsertAsync and UpdateAsync. Determine the database, schema, Dapper.Contrib version, and expected key behavior; done means the operation works without the reported "Field 'Id' doesn't have a default value" error and the behavior is covered by a regression test.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
database
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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