windowsforms-devexpress-dot-xtratreelist-6f4a776e.md
Provides data for the TreeList.InvalidNodeException event.
Namespace : DevExpress.XtraTreeList
Assembly : DevExpress.XtraTreeList.v25.2.dll
NuGet Packages : DevExpress.Win.Navigation, DevExpress.Win.TreeList
public class InvalidNodeExceptionEventArgs :
ExceptionEventArgs
Public Class InvalidNodeExceptionEventArgs
Inherits ExceptionEventArgs
InvalidNodeExceptionEventArgs is the data class for the following events:
The TreeList.InvalidNodeException event occurs when the focused node fails validation or it cannot be saved to the data source. You can handle this event to discard changes that cannot be accepted, raise an exception, display an error message box or provide any other desired response. InvalidNodeExceptionEventArgs object properties allow you to specify the contents of the error message box, identify the node that failed validation, access exception information and enable one of the predefined responses.
Object EventArgs ExceptionEventArgs InvalidNodeExceptionEventArgs
See Also