如何回滚knockout验证错误？ [英] How to rollback knockout validation errors?
问题描述
Step1：（按预期工作）使用添加对话框创建一个新实体，并尝试保存新实体。显示验证错误，因为缺少某些属性。这是想要的行为。用户取消对话框，并调用 unitofwork.rollback（）来撤销新实体的创建。
Step2：打开同一类型的现有实体的编辑对话框。尝试保存它原样。 => 再次显示步骤1中的验证错误！
如何在步骤1之后清除验证错误？
如果我只执行step2，保存操作很正常。
在相关的stackoverflow问题中建议使用
错误.showAllMessages（假）;
这没有解决我的问题。
相关问题：
-
< a href =https://stackoverflow.com/questions/17930588/clearing-or-resetting-a-knockout-validation-validatedobservable>清除或重置敲门验证validatedObservable？
>
validation.group（checkedEntity，{deep：true}）;
完整的对象树还考虑了被检查实体的 entityAspect 。
entityAspect连接到实体管理器。该实体管理器包含该实体的旧状态。
完整的周期是：
fooInstance => entityAspect => entityManager => entityGroupMap => Foo :. .. => _entities => 旧实体实例
因此，我基本上有两个选项：
- 不要使用{deep：true}
- 确保在回滚后，实体管理器不再包含旧实体： li>
entityManager.rejectChanges（）;
strong> entityManager.clear（）;
I use knockout validation 2.0.3 with entity framework 6.0 and get unexpected validation errors. Here is my workflow:
Step1: (works as expected) Create a new entity with an add-dialog and try to save the new entity. Validation errors are shown because some properties are missing. This is the wanted behavior. The user cancels the dialog and I call unitofwork.rollback() to undo the creation of the new entity.
Step2: Open the edit dialog for an existing entity of the same type. Try to save it as it is. => The validation errors from step 1 are shown again!
How can I clear the validation errors after step1?
If I only execute step2, the save action works just fine.
In a related stackoverflow question It was suggested to use
errors.showAllMessages(false);
That did not resolve my issue.
Related questions:
For the validation I used
validation.group(checkedEntity, { deep: true });
The full object tree also considers the entityAspect of the checked entity. The entityAspect is connected to the entity manager. And that entity manager contains the old state of the entity.
The complete cycle is:
fooInstance => entityAspect => entityManager => entityGroupMap => Foo:... => _entities => old entity instance
Therefore I basically have two options:
- Do not use { deep: true }
- Make sure that after the rollback the entity manager does not contain the old entity any more:
entityManager.rejectChanges();
entityManager.clear();
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