Datagridview call cellvalidating
It turns out that this is trickier than it might seem and doesn’t work great out of the box from .NET, but, not to fear, there are several easy work-arounds that will get the trick done.Also, the drop down list will add / remove handlers so you can easily test out which handlers do what without having to specifically comment out lines of code. You can also use the Visual Style Renderer class to paint standard controls using the current theme.This helps identify when, and in what order, events are being handled without explicitly having to set breakpoints and wait for the code to catch each event.In the options group box, you can choose to include event handlers notifications or not.Microsoft is conducting an online survey to understand your opinion of the Msdn Web site.
After looking into the problem at some length, MSDN actually seems to offer the best solution right on their Cell Content Click event page. I like that it tells us very specifically what has happened to the grid at the point in time when the event is raised and handled.
We would not want the Cell Value Changed event firing every single time a letter was added to a person’s last name.
Still, it doesn’t make much sense when we think about the way Check Box’s work, in that, they can only ever be On or Off, and that once you have made your selection, you’re probably pretty confident that you want to change the value.
However, I am not sure that I fully understand your scenario. Regards, Jack the Telerik team I think I am looking for the same effect.
No values are changed in the data source before validation.