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Update Concurrency-Check.md #18908

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merged 3 commits into from
Feb 1, 2024
Merged

Update Concurrency-Check.md #18908

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4f3ea9d
Update Concurrency-Check.md
maliming Feb 1, 2024
1843db9
Update Concurrency-Check.md
berkansasmaz Feb 1, 2024
d978a03
Update `Concurrency-Check.md`.
maliming Feb 1, 2024
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10 changes: 6 additions & 4 deletions docs/en/Concurrency-Check.md
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Expand Up @@ -29,6 +29,8 @@ public interface IHasConcurrencyStamp
* While a new record is **creating**, if the entity implements the `IHasConcurrencyStamp` interface, ABP Framework automatically sets a unique value to the **ConcurrencyStamp** property.
* While a record is **updating**, ABP Framework compares the **ConcurrencyStamp** property of the entity with the provided **ConcurrencyStamp** value by the user and if the values match, it automatically updates the **ConcurrencyStamp** property with the new unique value. If there is a mismatch, `AbpDbConcurrencyException` is thrown.

> If there is a unit of work, you need to call the [SaveChangesAsync](./Unit-Of-Work.md#savechangesasync) method to get the generated `ConcurrencyStamp` when creating or updating.

**Example: Applying Concurrency Control for the Book Entity**

Implement the `IHasConcurrencyStamp` interface for your entity:
Expand Down Expand Up @@ -74,8 +76,8 @@ public class BookAppService : ApplicationService, IBookAppService
book.ConcurrencyStamp = input.ConcurrencyStamp;

//set other input values to the entity ...

await BookRepository.UpdateAsync(book);
//use autoSave: true to get the latest ConcurrencyStamp
await BookRepository.UpdateAsync(book, autoSave: true);
}
}
```
Expand Down Expand Up @@ -134,8 +136,8 @@ public class BookAppService : ApplicationService, IBookAppService
book.ConcurrencyStamp = input.ConcurrencyStamp;

//set other input values to the entity ...

await BookRepository.UpdateAsync(book);
//use autoSave: true to get the latest ConcurrencyStamp
await BookRepository.UpdateAsync(book, autoSave: true);
}
}
```
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