Question

I got a good answer to my previous question but it’s actually even more complicated:

I need to pass to this stored procedure a list of ints:

ALTER proc [dbo].[Invoice_GetHomePageInvoices] (
      @AreaIdList varchar(max)
,      @FinancialYearStartDate datetime = null
,      @FinancialYearEndDate datetime = null

Here’s what I have so far:

public virtual IEnumerable<HomePageInvoice> GetHomePageInvoices(IList<Area> areas, FinancialYearLookup financialYear)
{
    var areaIds = areas.Select(x => x.Id).ToList();

    //return _db.Database.SqlQuery<HomePageInvoice>(string.Format("EXEC Invoice_GetHomePageInvoices @AreaIdList = '{0}', @FinancialYearStartDate = '{1}', @FinancialYearEndDate = '{2}'", areas.ToString(), financialYear.StartDate.ToString(), financialYear.EndDate.ToString()));

    var startDate = new SqlParameter("FinancialYearStartDate", financialYear.StartDate);
    var endDate = new SqlParameter("FinancialYearEndDate", financialYear.EndDate);

    return _db.Database.SqlQuery<HomePageInvoice>("Invoice_GetHomePageInvoices", startDate, endDate);
}

So the the datetime parameters are sorted. But how would you send the ids to the stored proc given I current have a List<int> and sql expects @AreaIdList varchar(max)

Answer 1

String.Join?

String.Join(",", areaIds)