如果 datagridviewcombobox 的值不在 datagridviewcomboboxcolumn 数据源中，我该怎么办？
我遇到的情况是下拉列表必须仅包含“活动”对象。然而，这并不意味着当前组合框值将在列表中（它是在对象处于活动状态时选择的，但不再处于活动状态）。
现在的情况是，抛出了一个异常。我认为在 datagridview 的 dataerror 处理程序中，它表示该值不在列表中。
我需要做的是找到填充每个 datagridview 行时触发的一些事件，这样我就可以检查并查看组合框值是否在组合框数据源中...如果没有，我会添加它。这是我能看到的唯一解决方案。但问题是，我应该使用哪个事件处理程序？
最好，我希望能够概括此检查并将其放入从 datagridview 继承的类中。这样我就不用再担心这个问题了。
有什么想法吗？
艾萨克
I've got a situation where the drop down list has to contain only 'active' objects. However this doesn't mean the current combobox value will be in the list (it was selected at a time that object was active, but is not active anymore).
As things are now, there's an exception thrown.. I think in the dataerror handler of the datagridview, that says the value is not in the list.
What I need to do is find some event that is fired when each datagridview row is populated, so I can check and see if the combobox value is in the combobox datasource... if not, I'd add it. That's the only solution I can see. But the question is, which event handler should I use for this?
Preferably, I'd like to be able to generalize this check and put it in a class that inherits from datagridview. This way, I won't have to worry about this problem ever again.
Any ideas?
Isaac
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您可以尝试
DataBindingComplete事件。其他选项包括DataMemberChanged和DataSourceChanged。如果不看一些代码，很难判断哪个事件最合适。
You could try the
DataBindingCompleteevent. Other options includeDataMemberChangedandDataSourceChanged.It's a bit hard to tell which event would be the most appropriate without seeing some code.