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Linq expression for executing a "Between"

开发者 https://www.devze.com 2023-03-31 19:29 出处:网络
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.

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开发者_如何学Go.

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).


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 :)

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