Can anyone help me to find out the mistake

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When I cretae a list like below am getting error system.linq.Iqueyable<anonymoustype1#>doesnot contains a definition for 'ToList' and the best extension method overload 'system.linq.parellelIEnumerable.ToList<<Tsource> has some invalid arguements.Can anyone help me to findout the mistake?

C#

List<ren> renewedorderlist = 
  (from ordernum in salesContext.SL_OrderIdMapper
     where ordernum.OrderNumber==placeOrderModel.OrderInfo.OrderID
   from orderDetail in salesContext.SL_OrderDetails
     where ordernum.OrderId == orderDetail.OrderId
   from renProducts in salesContext.products
     where renProducts.pid == orderDetail.ProductID
   from licenseDetails in salesContext.SL_LicenseDetails
     where licenseDetails.OrderDetailId == orderDetail.OrderDetailId
   from licenses in salesContext.SL_License
     where licenses.LicenseId == licenseDetails.LicenseId
   from oldProducts in salesContext.products
     where oldProducts.pid == licenses.ProductID
   select new
   {
     OrderId = ordernum.OrderNumber,
     OldProductName = oldProducts.productdesc,
     NewProductName = renProducts.productdesc,
     Quantity = orderDetail.Quantity,
     LicenseID = licenses.LicenseId
   }).ToList<ren>();

Posted 30-Apr-14 2:12am

NithyaGopu

Updated 30-Apr-14 2:13am

Kornfeld Eliyahu Peter

v2

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Thomas Daniels · Accepted Answer · 2014-04-30T02:22:00

You try to convert a collection of anonymous types to a List with elements of the type ren. Change select new { into select new ren() {

C#

List<ren> renewedorderlist = 
  (from ordernum in salesContext.SL_OrderIdMapper
     where ordernum.OrderNumber==placeOrderModel.OrderInfo.OrderID
   from orderDetail in salesContext.SL_OrderDetails
     where ordernum.OrderId == orderDetail.OrderId
   from renProducts in salesContext.products
     where renProducts.pid == orderDetail.ProductID
   from licenseDetails in salesContext.SL_LicenseDetails
     where licenseDetails.OrderDetailId == orderDetail.OrderDetailId
   from licenses in salesContext.SL_License
     where licenses.LicenseId == licenseDetails.LicenseId
   from oldProducts in salesContext.products
     where oldProducts.pid == licenses.ProductID
   select new ren() // <-- here
   {
     OrderId = ordernum.OrderNumber,
     OldProductName = oldProducts.productdesc,
     NewProductName = renProducts.productdesc,
     Quantity = orderDetail.Quantity,
     LicenseID = licenses.LicenseId
   }).ToList<ren>();