public void QueryAllCustomersWithOrders()
{
var q = context.CreateQuery <IQDSP.Customer>("Customers").Expand("Orders");
int totalCustomerCount = q.Count();
int totalOrdersCount = context.CreateQuery <IQDSP.Order>("Orders").Count();
var qor = q.Execute() as QueryOperationResponse <IQDSP.Customer>;
DataServiceQueryContinuation <IQDSP.Customer> nextCustLink = null;
int custCount = 0;
int orderCount = 0;
do
{
ICollection previousOrderCollection = null;
foreach (var c in qor)
{
try
{
if (previousOrderCollection != null)
{
qor.GetContinuation(previousOrderCollection);
Assert.Fail("Out of scope collection did not throw");
}
}
catch (ArgumentException)
{
}
var nextOrderLink = qor.GetContinuation(c.Orders);
while (nextOrderLink != null)
{
if (custCount % 2 == 0)
{
var innerQOR = context.Execute <IQDSP.Order>(nextOrderLink) as QueryOperationResponse <IQDSP.Order>;
foreach (var innerOrder in innerQOR)
{
context.AttachLink(c, "Orders", innerOrder);
c.Orders.Add(innerOrder);
}
nextOrderLink = innerQOR.GetContinuation();
}
else
{
nextOrderLink = context.LoadProperty(c, "Orders", nextOrderLink).GetContinuation();
}
}
previousOrderCollection = c.Orders;
orderCount += c.Orders.Count;
custCount++;
}
nextCustLink = qor.GetContinuation();
if (nextCustLink != null)
{
qor = context.Execute <IQDSP.Customer>(nextCustLink) as QueryOperationResponse <IQDSP.Customer>;
}
} while (nextCustLink != null);
Assert.AreEqual(totalCustomerCount, custCount);
Assert.AreEqual(totalOrdersCount, orderCount);
Assert.AreEqual(totalOrdersCount, context.Links.Count);
Assert.AreEqual(totalCustomerCount + totalOrdersCount, context.Entities.Count);
}
