CODEWITHSUNDEEP
c#.net
user3342256
user3342256

Reputation: 1290

Added Elements to List<Tuple>

I have a List defined as the following:

List<Tuple<string, long, DateTime>> firefoxBookmarkPaths = new List<Tuple<string, long, DateTime>>();

However I'm having trouble adding to my list:

List<Tuple<string, long, DateTime>> firefoxBookmarkPaths = new List<Tuple<string, long, DateTime>>();

long fileSize = 0;
string bookmarkFile = null;
string directoryToCheck = null;
DateTime fileModifiedDate = DateTime.MinValue;

foreach (var dir in basePersistDirectories)
{
    directoryToCheck = dir + @"\C\Users" + @"\" + Environment.UserName + @"\" + @"AppData\Roaming\Mozilla\Firefox\Profiles";
    if (Directory.Exists(directoryToCheck))
    {
        var subDirectories = Directory.GetDirectories(directoryToCheck);
        foreach (var directory in subDirectories)
        {
            bookmarkFile = directory + @"\places.sqlite";

            if (File.Exists(bookmarkFile))
            {
                fileSize = new FileInfo(bookmarkFile).Length;
                fileModifiedDate = new FileInfo(bookmarkFile).LastWriteTimeUtc;
            }
        }

        firefoxBookmarkPaths.Add(bookmarkFile, fileSize, fileModifiedDate);
    }
}

The line firefoxBookmarkPaths.Add(bookmarkFile, fileSize, fileModifiedDate); is throwing error "No overload for method 'Add' takes 3 arguments." How can I add elements to this list?

Upvotes: 0

Views: 66

Answers (2)

Keveloper
Keveloper

Reputation: 783

You are not calling .Add() with a tuple, you are calling .Add() with three parameters, which it has no overloaded method for (as the error message tells you). Instead, you'll need to do something like this:

firefoxBookmarkPaths.Add(Tuple.Create(bookmarkFile, fileSize, fileModifiedDate));

Or, if you are using C# 7.0, you can use some syntactic sugar:

firefoxBookmarkPaths.Add((bookmarkFile, fileSize, fileModifiedDate));

Edit

As pointed out in a comment below, this is not syntactic sugar, but a different type. Although if you are using C# 7.0, using the different type would also be good.

Upvotes: 5

Steve
Steve

Reputation: 216293

List<T>Add method requires a T value when you try to add something.
So your line should be 

firefoxBookmarkPaths.Add(new Tuple<string, long, DateTime>
                     (bookmarkFile, fileSize, fileModifiedDate));

Upvotes: 2

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