Assign users to jobs C#

Question

I have a user table that contains active and disabled users(tblUsers), I also have a transaction table(tblTransactions) with rows of records and an empty UserId colunm.
I want to select from UserId of active users from tblUsers and distribute those Id's across UserId column of tblTransactions.
Am basically trying to assign jobs from tblTransaction to active users in tblUsers. Am coding a C# and building a windows service to do this task.

Answer 1

1) Create an Entity Framework model for your database.  Head here
https://msdn.microsoft.com/en-us/data/ef to learn how.
2) Then you will be able to write C# like this
using (var db = new MyDbContext())
var activeUsers = db.tblUsers.Where(u => u.IsActive).ToList();
var unassignedTransactions = db.tblTransactions.Where(t => t.UserId == null).ToList();
var numActiveUsers = activeUsers.Count;
for (int i=0;i<unassignedTransactions.Count;i++)
var tran = unassignedTransactions[i];
tran.User = activeUsers[i % numActiveUsers];
db.SaveChanges();
Also if you can, remove the "tbl" prefix from all your tables.  It's not helpful.
David
David http://blogs.msdn.com/b/dbrowne/