DataSet.MergeFailed Event
.NET Framework 4.5
Occurs when a target and source DataRow have the same primary key value, and EnforceConstraints is set to true.
Namespace: System.Data
Assembly: System.Data (in System.Data.dll)
For more information about handling events, see Consuming Events.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.