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System.Runtime.Serialization.SerializationException Error

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Posted on by BlackBeard

445

Hello Experts,

im getting the Error "System.Runtime.Serialization.SerializationException:" in my Custom Workflow Step.

Did anyone know a solution?

This is my code:

                if (maschinenringstring != null)
                {

                    QueryExpression maschinenringquery = new QueryExpression("account");
                    maschinenringquery.ColumnSet = new ColumnSet(true);
                    maschinenringquery.Criteria.AddCondition("name", ConditionOperator.Like, maschinenringstring);
                    maschinenringquery.Criteria.AddCondition("businesstypecode", ConditionOperator.Equal, 4);

                    // query ausführen
                    EntityCollection retrievemaschinenring = service.RetrieveMultiple(maschinenringquery);

                    if (retrievemaschinenring.Entities.Count == 1)
                    {
                        Entity MaschinenringRef = retrievemaschinenring.Entities[0];
                        Maschinenring.Set(executionContext, new EntityReference("account", MaschinenringRef.Id));
                        tracingService.Trace("Maschinenring gefunden und zugeordnet");
                    }
                    else
                    {
                        tracingService.Trace("Keinen Maschinenring gefunden");
                    }
                }

Kind Regards,
Léon

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a33ik 84,331 Most Valuable Professional on at

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Hello,

Can you please provide full code? This code looks good.

Additionally can you please tell on what line your code fails?

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gdas 50,091 Moderator on at

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Hi Leon,

Could you please try with this . I just modified the query expression part , let me know which line you are getting error after modifying this.

if (maschinenringstring != null) { ConditionExpression condition1 = new ConditionExpression(); ConditionExpression condition2 = new ConditionExpression(); FilterExpression filter1 = new FilterExpression(); filter1.FilterOperator = LogicalOperator.Or; condition1.AttributeName = "name"; condition1.Operator = ConditionOperator.Like; condition1.Values.Add("%" + maschinenringstring + "%"); filter1.Conditions.Add(condition1); condition2.AttributeName = "businesstypecode"; condition2.Operator = ConditionOperator.Equal; condition2.Values.Add(4); filter1.Conditions.Add(condition2); QueryExpression maschinenringquery = new QueryExpression(); maschinenringquery.Criteria.AddFilter(filter1); maschinenringquery.EntityName = "account"; maschinenringquery.ColumnSet = new ColumnSet(); maschinenringquery.ColumnSet.AddColumns("name", "accountid", "accountnumber", "statuscode"); EntityCollection retrievemaschinenring = service.RetrieveMultiple(maschinenringquery); if (retrievemaschinenring.Entities.Count == 1) { Entity MaschinenringRef = retrievemaschinenring.Entities[0]; Maschinenring.Set(executionContext, new EntityReference("account", MaschinenringRef.Id)); tracingService.Trace("Maschinenring gefunden und zugeordnet"); } else { tracingService.Trace("Keinen Maschinenring gefunden"); } }

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BlackBeard

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Hello,

this is the complete code:

    /// </summary>    
    public sealed class SelectMaschinenring : WorkFlowActivityBase
    {

        //create Trace Service
        private ITracingService tracingService;

        #region Properties 
        //Property for Entity mrd_abrufschein
        [RequiredArgument]
        [Input("Maschinenring")]
        public InArgument<string> maschinenringstring { get; set; }
        #endregion



        private IOrganizationService service { get; set; }

        /// <summary>
        /// Executes the WorkFlow.
        /// </summary>
        /// <param name="crmWorkflowContext">The <see cref="LocalWorkflowContext"/> which contains the
        /// <param name="executionContext" > <see cref="CodeActivityContext"/>
        /// </param>       
        /// <remarks>
        /// For improved performance, Microsoft Dynamics 365 caches WorkFlow instances.
        /// The WorkFlow's Execute method should be written to be stateless as the constructor
        /// is not called for every invocation of the WorkFlow. Also, multiple system threads
        /// could execute the WorkFlow at the same time. All per invocation state information
        /// is stored in the context. This means that you should not use global variables in WorkFlows.
        /// </remarks>
        public override void ExecuteCRMWorkFlowActivity(CodeActivityContext executionContext, LocalWorkflowContext crmWorkflowContext)
        {

            // Create the tracing service
            tracingService = executionContext.GetExtension<ITracingService>();
            if (tracingService == null)
            {
                throw new InvalidPluginExecutionException("Failed to retrieve tracing service.");
            }
            tracingService.Trace("Entered SelectMaschinenring.Excecute(), Activity Instance Id: {0}, Workflow Instance Id: {1}",
                executionContext.ActivityInstanceId,
                executionContext.WorkflowInstanceId);

            // Create the context
            IWorkflowContext context = executionContext.GetExtension<IWorkflowContext>();

            if (context == null)
            {
                throw new InvalidPluginExecutionException("Failed to retrieve workflow context.");
            }

            tracingService.Trace("SelectMaschinenring.Execute(), Correlation Id: {0}, Initiating User: {1}",
                context.CorrelationId,
                context.InitiatingUserId);

            IOrganizationServiceFactory serviceFactory = executionContext.GetExtension<IOrganizationServiceFactory>();
            service = serviceFactory.CreateOrganizationService(context.UserId);

            try
            {
                if (maschinenringstring != null)
                {

                    QueryExpression maschinenringquery = new QueryExpression("account");
                    maschinenringquery.ColumnSet = new ColumnSet(true);
                    maschinenringquery.Criteria.AddCondition("name", ConditionOperator.Like, maschinenringstring);
                    maschinenringquery.Criteria.AddCondition("businesstypecode", ConditionOperator.Equal, 4);

                    // query ausführen
                    EntityCollection retrievemaschinenring = service.RetrieveMultiple(maschinenringquery);

                    if (retrievemaschinenring.Entities.Count == 1)
                    {
                        Entity MaschinenringRef = retrievemaschinenring.Entities[0];
                        Maschinenring.Set(executionContext, new EntityReference("account", MaschinenringRef.Id));
                        tracingService.Trace("Maschinenring gefunden und zugeordnet");
                    }
                    else
                    {
                        tracingService.Trace("Keinen Maschinenring gefunden");
                    }
                }                


            }
            catch (Exception ex)
            {
                tracingService.Trace("Fehler in Methode SelectMaschinenring " + ex.Message);

            }

        }

        // Output aus Class Provisionsdaten
        [Output("Maschinenring")]
        [ReferenceTarget("account")]
        public OutArgument<EntityReference> Maschinenring { get; set; }
        
    }

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RaviKashyap 55,410 Moderator on at

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Hi,

Can you try setting null on the output parameter on the if part where the retrieved account is not euals 1 and see if it works?

=======

if (retrievemaschinenring.Entities.Count == 1)

{

Entity MaschinenringRef = retrievemaschinenring.Entities[0];

Maschinenring.Set(executionContext, new EntityReference("account", MaschinenringRef.Id));

tracingService.Trace("Maschinenring gefunden und zugeordnet");

}

else

{

Maschinenring.Set(executionContext, null);

tracingService.Trace("Keinen Maschinenring gefunden");

}

==============

Also, could you please share a screenshot of the error messahe, it looks like it is occuring on the workflow itself and not this workflow activity.

Hope this helps.

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BlackBeard 445 on at

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so i tried to convert the variable in a string.

Now the error message is another one.

Is my InArgument empty?

I checked the Input in my Workflow and it was filled.

Entered SelectMaschinenring.Excecute(), Activity Instance Id: 1, Workflow Instance Id: 9f1169ea-5407-41ba-96f9-ca70fd068cc8

SelectMaschinenring.Execute(), Correlation Id: 1caad332-665b-459c-8f2e-c1c5e50b12db, Initiating User: a1223db7-c8a1-e611-80ea-5065f38b1311

System.Activities.InArgument`1[System.String]

System.Activities.InArgument`1[System.String]

Keinen Maschinenring gefunden

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RaviKashyap 55,410 Moderator on at

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Could you please elaborate " i tried to convert the variable in a string." you changed the input parameter?

You are getting this message after adding the below line?

Maschinenring.Set(executionContext, null);

Screenshot of the error will help!

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BlackBeard 445 on at

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No, the Line wont work...

If i trace the maschinenringstring variable i only get System.Activities.InArgument`1[System.String] but not the Text in the String.

Kind Regards

Léon

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a33ik 84,331 Most Valuable Professional on at

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Hello,

Try to replace line

maschinenringquery.Criteria.AddCondition("name", ConditionOperator.Like, maschinenringstring);

with line

maschinenringquery.Criteria.AddCondition("name", ConditionOperator.Like, maschinenringstring.Get(executionContext));

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Temmy Wahyu Raharjo 2,916 on at

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Andrew Butenko is correct. You need to get the string inside InArgument variable first:

var condition = maschineringstring.Get(executionContext);

if (!string.IsNullOrEmpty(condition))

{

QueryExpression maschinenringquery = new QueryExpression("account");

maschinenringquery.ColumnSet = new ColumnSet(true);

maschinenringquery.Criteria.AddCondition("name", ConditionOperator.Like, condition);

maschinenringquery.Criteria.AddCondition("businesstypecode", ConditionOperator.Equal, 4);

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