How to get all the birthdays of today?

Question

Does anyone know how to make a Linq query that gets all the birthdays of today? The code below doesn\'t work :

var getBirthdays = 
    orgContext.CreateQuery<         


        

Answer 1

You can use QueryExpression (it works for Microsoft CRM Plugin)

public EntityCollection getBirthdateList(IOrganizationService orgsService)
    {
        List birthdays = new List(); 

        //makes sure no CRM unsupported dates are passed (less than 1/1/1900)
        for (int i = Math.Min(140, DateTime.Today.Year - 1930); i > -1; i--)
        {
            //adds a different date per year
            birthdays.Add
            (
                DateTime.Now.AddYears(-i).ToString("yyyy-MM-dd")
            ); 
        }

       
        // Instantiate QueryExpression 
        var query = new QueryExpression("contact");

        // Define filter QEquote.Criteria
        var queryfilter = new FilterExpression();
        query.Criteria.AddFilter(queryfilter);

        // Define filter 
        queryfilter.FilterOperator = LogicalOperator.Or;
        queryfilter.AddCondition("birthdate",ConditionOperator.In,birthdays.ToArray());
        return orgsService.RetrieveMultiple(query); ;
    }