Represents an update attempt with one or more optimistic concurrency conflicts.
Assembly: System.Data.Linq (in System.Data.Linq.dll)
Thetype exposes the following members.
|IsDeleted||Gets a value that indicates whether the object in conflict has been deleted from the database.|
|IsResolved||Gets a value that indicates whether the conflicts for this object have already been resolved.|
|MemberConflicts||Gets a collection of all member conflicts that caused the update to fail.|
|Object||Gets the object in conflict.|
|Equals(Object)||Determines whether the specified Object is equal to the current Object. (Inherited from Object.)|
|Finalize||Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)|
|GetHashCode||Serves as a hash function for a particular type. (Inherited from Object.)|
|GetType||Gets the Type of the current instance. (Inherited from Object.)|
|MemberwiseClone||Creates a shallow copy of the current Object. (Inherited from Object.)|
|Resolve||Resolves member conflicts by keeping current values and resetting the baseline original values to match the more recent database values.|
|Resolve(RefreshMode)||Resolves member conflicts by using the specified RefreshMode.|
|Resolve(RefreshMode, Boolean)||Resolve member conflicts keeping current values and resetting the baseline original values.|
|ToString||Returns a string that represents the current object. (Inherited from Object.)|
This scenario is one in which an attempted update fails because database values have been updated since the client last read them.
The following example shows how to retrieve information about objects in conflict.
Dim db As New Northwnd("...") Try db.SubmitChanges(ConflictMode.ContinueOnConflict) Catch ex As ChangeConflictException Console.WriteLine("Optimistic concurrency error.") Console.WriteLine(ex.Message) For Each occ As ObjectChangeConflict In db.ChangeConflicts Dim metatable As MetaTable = db.Mapping.GetTable(occ.Object.GetType()) Dim entityInConflict = occ.Object Console.WriteLine("Table name: " & metatable.TableName) Console.Write("Customer ID: ") Console.WriteLine(entityInConflict.CustomerID) Console.ReadLine() Next End Try
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
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.