捕获entity.entityAspect.entityManager.createEntity的错误

Question

当我在代码下面运行时 -

this.entity.entityAspect.entityManager.createEntity('TblReceipt', {

ReceiptNo : 123
....
});

代码第一次正常运行并创建新实体。现在，当用户再次尝试运行它时，会给出以下错误 -

   Uncaught Error: A MergeStrategy of 'Disallowed' does not allow you to attach     an entity when an entity with the same key is already attached"

上述错误显示在控制台中。如何在javascript代码中捕获此错误并向用户显示消息？

由于

Answer 1

是的，是的。只需将它们包装在try catch块中即可 -

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