Deactivate users who are no longer exist in AD but were added into resource pool

Question

Hello forum members,
does anyone know how to deactivate users who are no longer exist in AD , but were added into resource pool?
I an trying to write some code that would update a custom value for each resource, but my code breaks whenever it encounters a resource that is not longer exists in AD. Any suggestions are appreciated.
  // Modify the resources, code was taken from http://msdn.microsoft.com/en-us/library/websvcresource.resource.updateresources(v=office.12).ASPX
                foreach (SvcResource.ResourceDataSet.ResourcesRow resourceRow in resourceDs.Resources)
                    Console.WriteLine("Check out " + resourceRow.RES_NAME);
                    if (resourceRow.IsRES_CHECKOUTBYNull())
                        resourceSvc.CheckOutResources(new Guid[] { resourceRow.RES_UID });
                        checkedOut = true;
                    else
                        if (resourceRow.RES_CHECKOUTBY == me)
                            checkedOut = true;
                        else
                            checkedOut = false;
                            Console.WriteLine("\tCan't check out this resource, skip updating this one.");
                    if (checkedOut)
                        SvcResource.ResourceDataSet updateDs = resourceSvc.ReadResource(resourceRow.RES_UID);
                            if (resourceRow.RES_TYPE <= (int)PSLibrary.Resource.Type.INACTIVATED_OFFSET)
                                updateDs.Resources[0].RES_CODE = "A" + rand.Next(1000, 9999);
                                Console.WriteLine("Update RES_CODE to " + updateDs.Resources[0].RES_CODE);
                                resourceSvc.UpdateResources(updateDs, false, false);
                                Console.WriteLine("Check in " + resourceRow.RES_NAME);
                                resourceSvc.CheckInResources(new Guid[] { resourceRow.RES_UID }, false);
                    Console.ForegroundColor = ConsoleColor.Yellow;
                    Console.WriteLine("".PadRight(30, '-'));
                    Console.ResetColor();
tatiana

Answer 1

This is the logic I used:
1) Try to inactivate the user
2) If it fails with "AdminNTAccountNotFound" then delete
try {
using( OperationContextScope ocs = new OperationContextScope( resourceClient.InnerChannel ) ) {
resourceClient.CheckOutResources( new Guid[] { resourceUID } );
// Perform the update
rsDS = ( SvcResource.ResourceDataSet ) rsDS.GetChanges();
resourceClient.UpdateResources( rsDS, false, true );
catch( Exception ex ) {
if( ex.Message.Contains( "AdminNTAccountNotFound" ) ) {
try {
resourceClient.CheckInResources( new Guid[] { resourceUID }, true );
catch {
//The resource does not have a valid account, deleting...
using( OperationContextScope ocs = new OperationContextScope( resourceClient.InnerChannel ) ) {
resourceClient.CheckOutResources( new Guid[] { resourceUID } );
resourceClient.DeleteResources( new Guid[] { resourceUID }, "No longer in RBS structure and/or AD" );
120811049008