Question

I have a collection of objects (IQueryable). Each object has various properties, some string some datetime, I’m not concerned about the datetime properties. How can I iterate through each object and return a collection of those objects that maybe have null values in one or more fields

For simplicity, consider a collection of Employees

Each employee may have two properties:
FirstName (string)
LastName (string)

I’d like to have a method that could iterate through all employees in the employee collection and return a collection of employees that either have first name or last name missing, i.e null or an empty string.

using .NET 3.5 with C#

Answer 1

Employees.Where(e => string.IsNullOrEmpty(e.FirstName) || string.IsNullOrEmpty(e.LastName))