Select rows from table1 and all the children from table2 into an object

Posted by Patrick on Stack Overflow See other posts from Stack Overflow or by Patrick
Published on 2011-01-06T18:46:15Z Indexed on 2011/01/06 20:54 UTC
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I want to pull data from table "Province_Notifiers" and also fetch all corresponding items from table "Province_Notifier_Datas". The table "Province_Notifier" has a guid to identify it (PK), table "Province_Notifier_Datas" has a column called BelongsToProvinceID witch is a foreign key to the "Province_Notifier" tables guid.

I tried something like this:

var records = from data in ctx.Province_Notifiers
              where DateTime.Now >= data.SendTime && data.Sent == false
              join data2 in ctx.Province_Notifier_Datas on data.Province_ID equals data2.BelongsToProvince_ID
              select new Province_Notifier
              {
                  Email = data.Email,
                  Province_ID = data.Province_ID,
                  ProvinceName = data.ProvinceName,
                  Sent = data.Sent,
                  UserName = data.UserName,
                  User_ID = data.User_ID,
                  Province_Notifier_Datas = (new List<Province_Notifier_Data>().AddRange(data2))
              };

This line is not working and i am trying to figure out how topull the data from table2 into that Province_Notifier_Datas variable.

Province_Notifier_Datas = (new List<Province_Notifier_Data>().AddRange(data2))

I can add a record easily by adding the second table row into the Province_Notifier_Datas but i can't fetch it back.

Province_Notifier dbNotifier = new Province_Notifier();
// set some values for dbNotifier
dbNotifier.Province_Notifier_Datas.Add(
          new Province_Notifier_Data
          {
              BelongsToProvince_ID = userInput.Value.ProvinceId,
              EventText = GenerateNotificationDetail(notifierDetail)
          });

This works and inserts the data correctly into both tables.

Edit:

These error messages is thrown:

Cannot convert from 'Province_Notifier_Data' to 'System.Collections.Generic.IEnumerable'

If i look in Visual Studio, the variable "Province_Notifier_Datas" is of type System.Data.Linq.EntitySet

The best overloaded method match for 'System.Collections.Generic.List.AddRange(System.Collections.Generic.IEnumerable)' has some invalid arguments

Edit:

var records = from data in ctx.Province_Notifiers
              where DateTime.Now >= data.SendTime && data.Sent == false        
              join data2 in ctx.Province_Notifier_Datas on data.Province_ID equals data2.BelongsToProvince_ID
              into data2list
              select new Province_Notifier
              {
                  Email = data.Email,
                  Province_ID = data.Province_ID,
                  ProvinceName = data.ProvinceName,
                  Sent = data.Sent,
                  UserName = data.UserName,
                  User_ID = data.User_ID,
                  Province_Notifier_Datas = new EntitySet<Province_Notifier_Data>().AddRange(data2List)
              };

Error 3 The name 'data2List' does not exist in the current context.

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