Retrive Dynamic Entity based on Entity name & Guid

 
       public DynamicEntity retriveEntity(string EntityName, string recordGuid)
    {
        TargetRetrieveDynamic targetRetrieve = new TargetRetrieveDynamic();

        // Set the properties of the target.
        targetRetrieve.EntityName = "contact";
        targetRetrieve.EntityId = new Guid(rec_guid);

        // Create the request object.
        RetrieveRequest retrieve = new RetrieveRequest();

        // Set the properties of the request object.
        retrieve.Target = targetRetrieve;
        retrieve.ColumnSet = new AllColumns();

        // Indicate that the BusinessEntity should be retrieved as a DynamicEntity.
        retrieve.ReturnDynamicEntities = true;

        // Execute the request.
        RetrieveResponse retrieved = (RetrieveResponse)_svc.Execute(retrieve);

        // Extract the DynamicEntity from the request.
       DynamicEntity R_entity = (DynamicEntity)retrieved.BusinessEntity;
       return R_entity;
    }