2009年6月24日 · So it is correct that the original example only answers the literal question. But since the answer may be more useful if it is generic, I've written an IQuerable extension that allows to add a like statement to the query as easy as a where statement. The extension works for both Linq as Linq-Sql.

2013年9月15日 · How do I use wildcards with LINQ? 0. Using LINQ with wildcard characters without using SqlMethods. 2.

2011年2月3日 · You can try use this article, where author describes how to build a LIKE statement with wildcard characters in LINQ to Entities. EDIT: Since the original link is now dead, here is the original extension class (as per Jon Koeter in the comments ) and usage example.

2013年10月1日 · Here's an extension method you might use. public static class EnumerableExtensions { public static IEnumerable<T> MatchesWildcard<T>(this IEnumerable<T> sequence, Func<T,string> expression, string pattern) { var regEx = WildcardToRegex(pattern); return sequence.Where(item => Regex.IsMatch(expression(item), …

Because of Linq's deffered execution following line doesn't get executed. this.OrderBy(a => Guid.NewGuid()); This just creates the query but never executed. Even if executed it won't change your collection. Don't forget Linq is a way to query data, not mutate it.

The third option I have yet to try out is to create something which can parse the search term and construct a valid Linq query, which is something @Slauma had a go at in link 2 below. But this still wouldn't work if the wildcard was not at the beginning or end of the search term.

2010年6月8日 · How can I build in wildcards to my LINQ To SQL lambda expression? This is what I have currently: var query = from log in context.Logs select log; foreach (string filter in CustomReport.ExtColsToFilter) { string tempFilter = filter; query = query.Where(Log => Log.FormattedMessage.Contains(tempFilter)); }

2013年9月17日 · I'm trying to find a solution that finds items in a list by using wildcard characters. For example, if i search battle i have to see the results of the list with these names: 1battle battle2 abatt...

2018年6月8日 · I have a functioning webhook to a Teams channel to which I can successfully post messages. I am now trying to post an adaptive card to the webhook. Using Postman and performing a Post to https://

2010年11月28日 · In SQL you can run a ISNULL(null,'') how would you do this in a linq query? I have a join in this query: var hht = from x in db.HandheldAssets join a in db.HandheldDevInfos on x.AssetID equals a.DevName into DevInfo from aa in DevInfo.DefaultIfEmpty() select new { AssetID = x.AssetID, Status = xx.Online };