generic-list

I'm doing the synchronization between the two lists. IList<Event> GoogleEvents and Table<myEvent> DB.Events; On google side i'm using this String Summary, String Description, EventDateTime Start, EventDateTime End, Event.RemindersData Reminders; On db side like this my code is like this foreach (myEvent item in DB.Events) { if (item.GoogleID == "" || item.GoogleID == null)// i add event my db { //Add dbEvent to google and save id to googleid column } } foreach (Event item in myGoogleCalendar.Items) { if (DB.Events.Where(o => o.GoogleID == item.Id).Count() == 0)// i add event google { //Add

I need to count the items that meet a criteria in a List(Of Structure) in .NET 2.0. For example: Dim listcars as New List(Of car) Structure car Dim Name as String Dim year as Integer End structure Now I need to count all cars with name Toyota, etc.. How do I do it? You want List.LongCount . Dim CarList As New List(Of Car) Dim Model As String = "Toyota" Dim ToyotaCount As Long = CarList.LongCount(Function(car) car.Name = Model) Dim toyotas As Integer = carList.Count(Function(c) c.Name = "Toyota") Here you go. var count = carList.Count(x => x.Name == "Toyota"); The syntax is blatantly wrong, but

I am a threading noob and I am trying to write a custom thread safe generic list class in C# (.NET 3.5 SP1). I've read Why are thread safe collections so hard? . After reviewing the requirements of the class I think I only need to safely add to the list and return the list. The example shows pretty much all I want except it lacks the return list method therefore I've written my own public method like below: Update: based on suggestions given I've reviewed my requirements and therefore simplified the class to as below: public sealed class ThreadSafeList<T> { private readonly IList<T> list = new

This question already has answers here : Why does List<T> implement IList<T>, ICollection<T> and IEnumerable<T>? (4 answers) Closed 4 years ago . Why is IList defined like this? public interface IList<T> : ICollection<T>, IEnumerable<T>, IEnumerable public interface ICollection<T> : IEnumerable<T>, IEnumerable public interface IEnumerable<T> : IEnumerable Couldn't it just be public interface IList<T> : ICollection<T> So, to test I created these interfaces, just to be sure if that works! public interface IOne { string One(); } public interface ITwo : IOne { string Two(); } public interface

Similar question have been asked here but none fits to my need. I made test cases to see which is faster. But I feel my linq code is still slow. How do I construct the linq code for faster performance? Others said using double .Tolist() can cause slower operation, when I test it, it shows that it is faster than any other tests. Test: Preparation --------------------------------------------------------------- return Properties of UserInfo(userinf, true){ UserID = userinf.UserID; FirstName = userinf.user.FirstName; MiddleName = userinf.user.MiddleName; LastName = userinf.user.LastName; LoginID =