使用linq用动态条件字符串过滤通用列表

Question

I am using .NET 3.5

I have a List of Company.cs objects.

I want to filder a this list dynamically with LINQ that means the user enters this string in a textbox:

(CompanyName = "Google") OR 
(Country = "Czech Republic") or
 (CompanyName = "Microsoft") AND
 (Country = "USA")

How can I use this string together with linq and a .Where() clause to filter the existing company objects?

Or is it better at all to use a DataTable and use the Select method?

Answer 1

Check out the Dynamic LINQ library .

Edit:

Sorry, I've misunderstood you.

If you have company and country lists like:

var compNames = new[] { "Boo", "Foo" };
var countries = new[] { "Germany", "Bubu" };

Then you can filter like this:

from c in companies 
where compNames.Contains(c.Name) || countries.Contains(c.Country)
select c