Are you using LINQ in C# and requite to remove all objects matching the condition from a List ? Read this blog post to find out how to delete all objects matching the condition from a List using LINQ.
How to Remove all the objects matching the condition from a List using LINQ ?
One can use the Remove method defined in the System.Collections.Generic.List class to delete or remove an object matching the condition .
The Remove method removes the first occurrence of the specific object from the List .
If you want to remove all the objects matching the condition from a List using LINQ , you can use the RemoveAll to delete all the occurrence of the objects that match the criteria.
In the below example , the movies contains the list of all movies which is ordered by the name of the actor and the movie name and is assigned to moviesLamba1 .
Then all the movies that has the actor name “hero1” is removed from the moviesLamba1 using the RemoveAll function and the lambda expression.
List<Movie> movies = new Movies(); var moviesLamba1 = movies.OrderBy(m => m.Actor).ThenBy(m => m.MovieName).ToList(); moviesLamba1.RemoveAll(x => x.Actor == "hero1");