Linq expression for executing a “Between”

问题

In SQL you have the ability to write a query that executes a between on a column that is of type 'nvachar' and simply returns to you all the rows that are between the min and max values specified.

For Example,

Table (Id:Int, Name:nvarchar):

Contents:
1, Annie
2, Bill
3, Frank
4, Phil
5, Ted

Select * where Name Between 'Frank' and 'Ted'

Should return Frank, Phil, and Ted.

Is there a way to do this with linq or am I going to have to create a custom query and execute it? The only examples I have seen involve dates or integers which make it very easy (can use the comparison operators like <, > etc).

回答1:

You'd use CompareTo instead:

var query = from name in names
            where name.CompareTo("Frank") >= 0 &&
                  name.CompareTo("Ted") <= 0
            select name;

Use > and < to be exclusive (i.e. to exclude Frank and Ted).

Basically it's the same as using < and >, but with methods :)

来源：https://stackoverflow.com/questions/7235859/linq-expression-for-executing-a-between