Question

Having a T-SQL query:

select [ProductNumber] ,max([ProductRevNumber])
from Products  
group by [ProductNumber]

Attempted LINQ query:

ProductsDBContext.Products.GroupBy(x => x.ProductRevNumber)
                          .Select(group => ProductNumber, 
                                           ProductRevNumber = group.Max(x => x.ProductRevNumber));

The lambda query doesn’t work.

Answer 1

I think this is what you are after:

var latestProducts = ProductsDBContext.Products
    .GroupBy(p => p.ProductNumber).Select(g => new 
    {
        ProductNumber = g.Key,
        MaxProductRevNumber = g.Max(p => p.ProductRevNumber))
    });