LinqToSql - Parallel - DataContext and Parallel
- by Gregoire
In .NET 4 and multicore environment, does the linq to sql datacontext object take advantage of the new parallels if we use DataLoadOptions.LoadWith?
EDIT
I know linq to sql does not parallelize ordinary queries. What I want to know is when we specify DataLoadOption.LoadWith, does it use parallelization to perform the match between each entity and its sub entities?
Example:
using(MyDataContext context = new MyDataContext())
{
DataLaodOptions options =new DataLoadOptions();
options.LoadWith<Product>(p=>p.Category);
return this.DataContext.Products.Where(p=>p.SomeCondition);
}
generates the following sql:
Select Id,Name from Categories
Select Id,Name, CategoryId from Products where p.SomeCondition
when all the products are created, will we have a
categories.ToArray();
Parallel.Foreach(products, p =>
{
p.Category == categories.FirstOrDefault(c => c.Id == p.CategoryId);
});
or
categories.ToArray();
foreach(Product product in products)
{
product.Category = categories.FirstOrDefault(c => c.Id == product.CategoryId);
}
?
