Simple question here, but this has been killing me trying to get this to work...
I have a class, called Taxonomy. There is a property called, WebName, I get a list of Taxonomy classes, and would like to use .RemoveAll to remove any of the Taxonomy's within the list with the WebName.ToLower() equal to either "n/a" or "other". WebName property is of type string.
This is what I tried so far:
List<Taxonomy> theNeighborhoods = new List<Taxonomy>();
Taxonomy aNeighborhood = GetCachedNeighborhoodTaxonomy(); // Returns the Parent Taxonomy
theNeighborhoods = aNeighborhood.Children.ToList(); // This gives me a list of Taxonomy classes
How can I change theNeighborhoods List to only select values that do not have "n/a" or "other" in the WebName property of each Taxonomy?
theNeighborhoods = aNeighborhood.Children.ToList().RemoveAll(a => a.WebName.ToLower() == "n/a" || a.WebName.ToLower() == "other").ToList();
The above code gives me error, something like int has no extension ToList How to do this with .RemoveAll?
You could do one of two things. First you could use a where from LINQ:
theNeighborhoods = aNeighborhood.Children.Where(a => a.WebName.ToLower() != "n/a" && a.WebName.ToLower() != "other").ToList();
Alternatively you could call RemoveAll after getting the list, like so:
theNeighborhoods = aNeighborhood.Children.ToList();
theNeighborhoods.RemoveAll(a => a.WebName.ToLower() == "n/a" || a.WebName.ToLower() == "other").ToList();
RemoveAll returns an int that represents how many items were removed. That is why you got the error you did. I suggest looking up the documentation on RemoveAll.