/// <summary> /// Executes the plug-in. /// </summary> /// <param name="localContext">The <see cref="LocalPluginContext"/> which contains the /// <see cref="IPluginExecutionContext"/>, /// <see cref="IOrganizationService"/> /// and <see cref="ITracingService"/> /// </param> /// <remarks> /// For improved performance, Microsoft Dynamics CRM caches plug-in instances. /// The plug-in's Execute method should be written to be stateless as the constructor /// is not called for every invocation of the plug-in. Also, multiple system threads /// could execute the plug-in at the same time. All per invocation state information /// is stored in the context. This means that you should not use global variables in plug-ins. /// </remarks> protected void ExecutePreValidateAccountDelete(LocalPluginContext localContext) { if (localContext == null) { throw new ArgumentNullException("localContext"); } IPluginExecutionContext context = localContext.PluginExecutionContext; IOrganizationService service = localContext.OrganizationService; ITracingService trace = localContext.TracingService; var accountTargetEntity = (EntityReference)context.InputParameters["Target"]; string message = context.MessageName; string error = ""; if (context.Depth > 1) { return; } try { EntityCollection accountEC = CommonHandler.RetrieveRecordsByOneValue("account", "accountid", accountTargetEntity.Id, service, null, OrderType.Ascending, new[] { "accountid", "gsc_ispotential" }); AccountHandler accountHandler = new AccountHandler(service, trace); Entity accountEntity = accountEC.Entities[0]; if (accountHandler.IsUsedInTransaction(accountEntity) == true) { throw new InvalidPluginExecutionException("Unable to delete corporate record(s) used in transaction"); } } catch (Exception ex) { if (ex.Message.Contains("Unable to delete corporate record(s) used in transaction")) { throw new InvalidPluginExecutionException(ex.Message); } else { throw new InvalidPluginExecutionException(String.Concat("(Exception)\n", ex.Message, Environment.NewLine, ex.StackTrace, Environment.NewLine, error)); } } }