Question

I am slowly porting over an app from MySQL to use Linq2Sql – but one query has stumped me a bit.

SELECT * FROM Pages WHERE DomainID = @reportid AND (PageContent REGEXP ‘display:[ \t]*none’) > 0 ORDER BY URL ASC

Any ideas on how I would write something like this with Linq2SQL? Its the REGEXP bit thats got me stumped?

Answer 1

Why not use LINQ to return items that match on reportid and that contain ‘display:’, to minimise the amount of data being returned from the server, and then use regex on client side to filter that list down?

var query = Pages.Where( p => p.DomainId == 1 && p.PageContent.IndexOf("display:") > 0).OrderBy( o => o.URL );

var regex = new Regex(@"display\:[\t]*none");

foreach (var page in query)
{
    if( regex.IsMatch(page.PageContent) )
    {
        // Do whatever...                    
    }                    
}