Compile error on ExecuteAsynch method : I finally figured it out. That...

Tue, 26 Oct 2010 15:31:39 -700

Author: BillG
Subject: 2264
Posted: 26-Oct-2010 at 3:31pm

I finally figured it out. That was hard, like pulling teeth.

          IEntityQuery query = (IEntityQuery)PredicateBuilder.FilterQuery(Mgr.Members, aCompositePredicateDescription);

             Mgr.ExecuteQueryAsync((IEntityQuery)query,
                 (op) => {
                     var results = op.Results;
                     results.ForEach(Members.Add);
                 }
                 );

            return Members;

Compile error on ExecuteAsynch method : I don't know if these changes...

Tue, 26 Oct 2010 14:25:56 -700

Author: BillG
Subject: 2264
Posted: 26-Oct-2010 at 2:25pm

I don't know if these changes get me any closer to the solution. The compile error is still the same statement but it doesn't like the ForEach statment as it doesn't belong to op.Results

IEntityQuery query = (IEntityQuery)PredicateBuilder.FilterQuery(Mgr.Members, aCompositePredicateDescription);

Mgr.ExecuteQueryAsync(query, op => op.Results.ForEach(Members.Add));

Compile error on ExecuteAsynch method : I am passing a query object to...

Tue, 26 Oct 2010 14:07:02 -700

Author: BillG
Subject: 2264
Posted: 26-Oct-2010 at 2:07pm

    I am passing a query object to my GetMembers() method that holds a variable number of search parameters. After building the query with PredicateBuilder, I want to execute the query asynchronously and in the same method use lambda statements to fill the collection instead of using a callback operation. I am getting a compile error on the ExecuteAsynch method. How do I write this method correctly? It is the line in blue at the bottom of the method.

       public ObservableCollection GetMembers(MemberQO q)
        {
List predicateDescriptions = new List();

            PredicateDescription aPredicateDescription;

            if (q.SSN != string.Empty)
            {
                aPredicateDescription = PredicateBuilder.Make(typeof(Member), "SocSecNo", FilterOperator.IsEqualTo,
                                                              q.SSN);
                predicateDescriptions.Add(aPredicateDescription);
            }

            if (q.LastName != string.Empty)
                predicateDescriptions.Add(PredicateBuilder.Make(typeof(Member), "LastName", FilterOperator.StartsWith,            q.LastName));

            if (q.FirstName != string.Empty)
                predicateDescriptions.Add(PredicateBuilder.Make(typeof(Member), "FirstName", FilterOperator.StartsWith, q.FirstName));

            if (q.EmployeeNo != string.Empty)
                predicateDescriptions.Add(PredicateBuilder.Make(typeof(Member), "EmployeeNumber", FilterOperator.IsEqualTo, q.EmployeeNo));

            if (q.CardNo != 0)
                predicateDescriptions.Add(PredicateBuilder.Make(typeof(Member), "CardNo", FilterOperator.IsEqualTo, q.CardNo));

            if (q.Status != string.Empty)
                predicateDescriptions.Add(PredicateBuilder.Make(typeof(Member), "Status", FilterOperator.IsEqualTo, q.Status));

            if (q.Office != string.Empty)
                predicateDescriptions.Add(PredicateBuilder.Make(typeof(Member), "Office", FilterOperator.IsEqualTo, q.Office));

     CompositePredicateDescription aCompositePredicateDescription = PredicateBuilder.And(predicateDescriptions.ToArray());

            var query = PredicateBuilder.FilterQuery(Mgr.Members, aCompositePredicateDescription);

           query.ExecuteAsync(op => op.Results.ForEach(Members.Add));
           return Members;
     }

DevForce Community Forum : Compile error on ExecuteAsynch method

Compile error on ExecuteAsynch method : I finally figured it out. That...

Compile error on ExecuteAsynch method : I don't know if these changes...

Compile error on ExecuteAsynch method : I am passing a query object to...