generic-list_开发者

Explanation of how List class works

I have a question about the List class. From what I understand List is a class deriving from the Collection class. My problem is that when I read examples on the internet, it says for example List <[详细]

2023-04-12 09:22 分类：问答

How to pass List<DerivedClass> when param type is List<BaseClass>?

How can i pass a list which is a list of DerivedObjects where the Method is expecting a list of BaseObjects. I am converting the list .ToList<BaseClass>() and am wondering if there is a better w[详细]

2023-04-11 01:45 分类：问答

Why does List.Clear() also get rid of a class property?

I have the following class: Public Class ID Private sID as List(Of Integer) Public property IDlist as List(Of Integer)[详细]

2023-04-10 05:45 分类：问答

Filtering a list with linq

Being new to linq, I am having trouble trying to apply a filter to a List object. This is what I have so far[详细]

2023-04-09 08:01 分类：问答

How to clone a generic list of instances of a class derived from an abstract class in C#?

I have a base class: abstract class Base and some derived classes: class Derived: Base, that all data members are in the base class. I have another generic list: List<Base> list. Now I want to p[详细]

2023-04-03 21:04 分类：问答

What is the VB.NET syntax for using List.FindAll() with a lambda?

In C# I have been performing a FindAll in a 开发者_开发知识库generic list as follows: List<group.category> tlist = list.FindAll(p => p.parid == titem.catid);[详细]

2023-04-02 02:08 分类：问答

how to get byte size of type in generic list?

I have this generic list and I want to get the byte size of the type like if T is string or int etc., I tried both ways as written in getByteSize(), and just to let you know I am using only one way at[详细]

2023-04-02 00:02 分类：问答

Orderby in generic list

I have a generic l开发者_高级运维ist which I form from two other lists. The orderby doesn\'t seem to be working correctly. BeOrders come first (ordered by date) then BTOrders (ordered by date). Have I[详细]

2023-04-01 20:21 分类：问答

How do I get my data to show in correct DataGridView column?

I am trying to populate my DataGridView with custom columns imported from Excel.This should be easy but for the life of me, I am stuck in a brainlock.I should be able to select the specific columns (w[详细]

2023-04-01 14:14 分类：问答