Question

I am trying to add some logic in this. But I am not sure how to add a second condition…

For instance:

        foreach (FolderAssetInfo e in folderAssetsList)
        {
            var foundAsset = databaseAssetsList.Find(a => a.AssetFullName == e.AssetFullName);
            //I want to add an AND logic inside the parenthesis such as:
            //a => a.AssetFullName == e.AssetFullName && a.AssetFirstName == e.AssetFirstName)

            if (foundAsset != null)
            {
                Console.WriteLine(Found it!);
            }
        }

How can I do that?

Answer 1

Your syntax is perfect:

var foundAsset = databaseAssetsList.Find(a => a.AssetFullName == e.AssetFullName && a.AssetFirstName == e.AssetFirstName);

Basically, the Predicate<T> is just syntax that will return a boolean value. Your syntax in the comment (a.AssetFullName == e.AssetFullName && a.AssetFirstName == e.AssetFirstName) will return a boolean, as written, so it will work fine for the predicate.

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The one place where you do have a syntax error is your call to Console.WriteLine – this will require you to add quotation marks:

Console.WriteLine("Found it!"); // Quotes are required here!