在数据表上执行约束 [英] EnforceConstraint on Datatable

问题描述

在数据集上是一个EnforceConstraints属性，指示是否应启用约束。尽管数据表也可以有约束，但我不能禁用数据表的约束。

On a dataset is a EnforceConstraints property indicating whether the constraints should be enabled. Althought a datatable also can have constraints i cannot disable the constraints for a datatable.

我的情况是我有一个数据表，该数据表在内存中使用，并且其中一列具有唯一约束。有时我想暂时禁用唯一约束。我怎样才能做到这一点？我想到的唯一一件事就是删除并重新添加约束。有更好的方法吗？

My case is that I have datatable which i use in memory with a uniqueconstraint on one of the columns. Sometimes i want to temporarily disable the unique constraint. How can I do this? The only thing I came up with is removing and re-adding the constraint. Is there a better way?

推荐答案

基本上，我所做的就是遍历约束素并删除它们。进行操作，然后在表上重新添加约束

Basically what i did is loop through the contrains and remove them. Do the action and re-add the constraints on the table

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