ChangeConflictException Class
Represents the exception that is thrown when an update fails because database values have been updated since the client last read them.
Inheritance Hierarchy
System.Object
System.Exception
Microsoft.SharePoint.Linq.ChangeConflictException
Namespace: Microsoft.SharePoint.Linq
Assembly: Microsoft.SharePoint.Linq (in Microsoft.SharePoint.Linq.dll)
Syntax
'Declaration
<SerializableAttribute> _
Public Class ChangeConflictException _
Inherits Exception
'Usage
Dim instance As ChangeConflictException
[SerializableAttribute]
public class ChangeConflictException : Exception
Remarks
This exception is thrown by SubmitChanges() when it detects a concurrency conflict. Your code should always catch and resolve the discrepancies. For more information about resolution of conflicts, see How to: Write to Lists Using LINQ to SharePoint.
Examples
The following is a simple example of catching the exception and resolving the discrepancies.
foreach (TeamMember teamMember in teamSite.TeamMembers)
{
teamMember.TopTask = "Fiscal Planning";
}
try
{
teamSite.SubmitChanges();
}
catch (ChangeConflictException e)
{
teamSite.ChangeConflicts.ResolveAll();
teamSite.SubmitChanges();
}
For Each teamMember As TeamMember In teamSite.TeamMembers
teamMember.TopTask = "Fiscal Planning"
Next teamMember
Try
teamSite.SubmitChanges()
Catch e As ChangeConflictException
teamSite.ChangeConflicts.ResolveAll()
teamSite.SubmitChanges()
End Try
Thread Safety
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.