组合框如何依赖于其他组合框 [英] How combobox depend on other combobox

问题描述

在MS Access数据绑定中创建一个3级组合框级联过滤器，如示例Country - >州 - >城市。



在combo-box1国家/地区的选择应该在组合框2中显示在州选择城市之后应该显示在combo-box3下



我的尝试：



选择时combo-box1中的国家/地区各自的状态显示在combo-box2中，城市显示在combo-box3中的时间

In MS Access databinding create a 3-level combo box cascading filter like in example Country--> State --> City .

selection in countries in combo-box1 respective states should display in combo-box2 the after upon state selection cities should get displayed under combo-box3

What I have tried:

when selection in countries in combo-box1 respective state display in combo-box2 and city display in combo-box3 at a time

推荐答案

我试过的内容：是为了你要把你试过的代码写下来。您被要求在5天前提供示例源代码。



如果我们看不出这些问题，我们无法帮助您解决问题。 />


然而，问题的措辞是这样的，它表明它可能是家庭作业。我们不为你做作业。这样做会适得其反，因为练习可以帮助你将知识融入你的大脑。



所以再试一次问题，包括你写的代码（@ kmn1235已经给你一个提示）并解释与你想要发生的事情相比会发生什么。



然后我们将非常乐意为您提供帮助

The "What I have tried:" is there for you to put the code that you have tried to write. You were asked to provide sample source code 5 days ago.

We can't help you fix your problems if we can't see what those problems are.

However, the question is worded in such a way that it suggests it may be homework. We don't do homework for you. To do so is counter-productive as exercises are set to help you cement knowledge into your brain.

So try asking the question again, include the code that you have written (@kmn1235 has already given you a hint) and explain what happens compared to what you wanted to happen.

Then we will be very happy to help you

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