C cellvalidating cancel
Canceling this event cancels the changes to the current cell.When this event is canceled in data-bound mode, the new value is not pushed to the underlying data source.This was fixed by the following in the cancel button click event: Setting Causes Validation to false is the key, however this alone is not enough.If the buttons parent has Causes Validation set to true, the validating event will still get called.True is by the way the default setting) Now for the solution: When a control belongs to a parent control - you should set the causes validation of the Parent to false, if you want the kind of behaviour I wanted. The two issues do deal with validation but they are very different and they are not linked. Causes Validation Property: Gets or sets a value indicating whether the control causes validation to be performed on any controls that require validation when it receives focus.I did not realise the Cell was a child control of the actual Data Grid View. The Cancel buttons Causes Validation does not refer to the behaviour implemented by Cell Validating event on the Data Grid View.
The Data Grid View class provides a convenient way to perform validation before data is committed to the data store.If you choose to participate, the online survey will be presented to you when you leave the Msdn Web site. Doing so can cause your application or the operating system to stop responding.framework 3.5 C# C# data Grid View Cell Validating event fires regardless of Causes Validation set to false of Cancel button I have the Cancel buttons Causes Validation set to false but the above event still fires. First of all - The validating events of a control CAN be supressed by setting the Causes Validation = false of the other control that gest focus to. For example if you do not want the validation event of a Text box to fire when you click the Cancel button ( as you would ), then you must set the btn Cancel. For all who tried to answer - Thanks for the attention. But for the record and others who may stumble upon , I am writing this note.For more information, see the WM_KILLFOCUS topic in the "Keyboard Input Reference" section, and the "Message Deadlocks" section of the "About Messages and Message Queues" topic in the MSDN library at The following code example uses the derived class Text Box and validates an e-mail address that the user enters.For more information on the upcoming change, we invite you to read our blog post.Microsoft is conducting an online survey to understand your opinion of the Msdn Web site.If the e-mail address is not in the standard format (containing "@" and "."), the validation fails, an Error Provider icon is displayed, and the event is canceled.This example requires that a Text Box and Error Provider control have been created on a form.