'Declaration Public Property ValidationTrigger As ValidationTrigger
public ValidationTrigger ValidationTrigger {get; set;}
Validation of a control or embeddable editor can be initiated by the end user when the user leaves the control/editor being validated, or when the value of a given property changes while the control/editor is focused. Validation can also be triggered by the end developer by calling one of the various overloads of the Validate method. The ValidationTrigger property determines which of these three events cause a validation session to begin.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2