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data grid & projections?
Can I write a projection & have LinqPad produce the link to the projection in the grid results? Like it produces on FKs:
Like this: https://stackoverflow.com/a/23794102/185123 but w/ the grid view.
Can I write a projection & have LinqPad produce the link to the projection in the grid results? Like it produces on FKs:
Like this: https://stackoverflow.com/a/23794102/185123 but w/ the grid view.
Comments
The
OnDemandextension method might help. This creates a DumpContainer that lazily expands a sequence.Eagerly:
Customers.Select (c => new { c.ID, c.Name, Purchases = Purchases.Select (p => p.Description).OnDemand() })Lazily (we need to ensure that LINQ-to-SQL does not include the projection in the expression tree):
Func<Customer, DumpContainer> projection = c => c.Purchases.Select (p => p.Description).OnDemand(); Customers.Select (c => new { c.ID, c.Name, Purchases = projection(c) }).Dump();or:
void Main() { Customers.Select (c => new { c.ID, c.Name, Purchases = Projection(c) }).Dump(); } static DumpContainer Projection (Customer c) => c.Purchases.Select (p => p.Description).OnDemand();