有什么方法可以找出哪个 TField 正在引发 EDBClient 并显示消息“需要字段值”。
我有一个包含多个字段的 TClientDataSet，我收到此异常，我确信我忘记设置一个字段值，但问题是，哪个字段？
有什么方法可以快速找出哪个字段引发了此异常？
编辑
我解决了问题，我将 TClientDataSet 连接到错误的提供程序，该提供程序在服务器上有一个必填字段，但在客户端上没有此字段。
但它仍然不会使我的问题无效，我花了很多时间来弄清楚，如果我有某种方法知道哪个服务器端必填字段引发了此错误，那么我很快就会意识到我的错误是什么。
编辑2
相关QC：
#5557 - 解决为“按设计”。
#54380 - 打开
I have one TClientDataSet with several Fields and I'm getting this exception, I'm sure that I forgot to set one field value, but the question is, which Field?
Is there some way to find out quickly which field is raising this exception?
EDIT
I solved the problem, I was connecting the TClientDataSet to the wrong provider, which had a required field on the server but didn't have this field on the client.
But it still doesn't invalidate my question, I lost a lot of time to figure it out, and if I had some way to know which server side required field was raising this error it would be very quick to realise what was my mistake.
EDIT 2
Related QCs:
#5557 - Solved as "As Designed".
#54380 - Open
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当调试器通知您异常时，请查看调用堆栈。 导航到正在迭代字段列表的例程，并检查此时的循环控制变量，以了解程序在引发异常之前已遍历字段列表多远。
如果循环控制变量不准确，则在该例程中设置断点并重新运行程序。 逐步执行，直到再次出现异常。
另一种选择是查看所有字段并亲自查看哪个字段缺少值。
When the debugger notifies you of the exception, look at the call stack. Navigate to the routine that is iterating over the list of fields, and inspect the loop-control variable at that point to find out how far through the field list your program got before raising an exception.
If the loop-control variable isn't accurate, then set a breakpoint in that routine and re-run your program. Step through until you get the exception again.
Another option is to look at all the fields and see for yourself which one lacks a value.