.NET List<T> Concat vs AddRange

What is the difference between the AddRange and Concat functions on a generic List? Is one recommended over the other?

ObservableCollection Doesn't support AddRange method, so I get notified for each item added, besides what about INotifyCollectionChanging?

I want to be able to add a range and get updated for the entire bulk. I also want to be able to cancel the action before it's done (i.e. collection changing besides the 'changed'). Related...

c# Linq `List<Interface>.AddRange` Method Not Working

I have an interface defined as below: public interface TestInterface{ int id { get; set; } } And two Linq-to-SQL classes implementing that interface: public class tblTestA : TestInterface{ ...

List<IJob>.AddRange(List<Job>) doesn't work

I discovered that a list of concrete objects cannot be added to a list of interface object. public static void AddJob(List<IJob> masterJobs, List<Job> jobs) { masterJobs.AddRange(jobs); ...

Is it possible to create constructor-extension-method ? how?

Is it possible to add a constructor extension method? Sample Use Case I want to add a List< T > constructor to receive specific amount of bytes out of a given partially filled buffer (without the...

How to place caret inside an empty DOM Element Node

How can I place the caret (collapsed range) inside an empty element node. This code is supposed to work, but it doesnt. node = document.getElementById('some-empty-strong-node') range =...

Set selection range in javascript IE8

I'm working on a wysiwyg editor using div[contenteditable=true] and I want to set a selection range from offset X of Node A to offset Y of Node B. I did it well on Firefox and IE9, the code is...

ConcurrentBag - Add Multiple Items?

Is there a way to add multiple items to ConcurrentBag all at once, instead of one at a time? I don't see an AddRange() method on ConcurrentBag, but there is a Concat(). However, that's not working...

Can I somehow temporarily disable WPF data binding changes?

I have a WPF application that uses MVVM data bindings. I am adding items to an ObservableCollection<...> and quite many of them indeed. Now I am wondering that every time I add one to the...

List.AddRange with IEnumerable<T> parameter not working?

I have the following scenario where I want to add some items to a List... List<T> items = new List<T>(); IEnumerable<T> addItems = someCollection.Where(...); items.AddRange(addItems); Using this...

How to add a range of items to an IList?

There is no AddRange() method for IList<T>. How can I add a list of items to an IList<T> without iterating through the items and using the Add() method?

Is there an AddRange equivalent for a HashSet in C#

With a list you can do: list.AddRange(otherCollection); There is no add range method in a HashSet. What is the best way to add another ICollection to a HashSet?

How to Enqueue a list of items in C#?

Using lists I use List<int> list = new List<int>(); list.AddRange(otherList); How to do this using a Queue?, this Collection does not have a AddRange Method. Queue<int> q = new...

Replacing proxyAddresses values

We have a c# script that needs to update/replace the proxyAddresses contents. I believe I understand how to add a range of values as follows: DirectoryEntry entry = new...

Why not inherit from List<T>?

When planning out my programs, I often start with a chain of thought like so: A football team is just a list of football players. Therefore, I should represent it with: var football_team = new...

javascript copy rich text contents to clipboard

Premise I need help copying rich text to the clipboard using JavaScript. I have searched around and haven't found anything to suit my specific needs. Code function ctrlA1(corp) { with(corp)...

Specified cast is not valid C# Entity Framework

Hi I have been getting this Specified cast is not valid in my code but when I connect to my backup database I do not get the Specified cast is not valid error. I am not sure what is going...

Difference between Add and AddRange in arrayList c#

Can anyone tell when to use Add() and AddRange() of ArrayList?

Copy to clipboard using Javascript in iOS

I'm using this function to copy a URL to the clipboard: function CopyUrl($this){ var querySelector = $this.next().attr("id"); var emailLink = document.querySelector("#"+querySelector); ...

Why am I getting the error "Cannot instantiate implementation type" for my generic service?

I have a generic repository that I have been instantiating right in my WEB API Controller no problem for a while. This is what my controller used to look like: [Route("api/[controller]")] public...

YouTube Apps Script API only runnable by accounts without a YouTube channel?

This is such a strange issue and there seems to be no documentation of it anywhere online. Whenever I try to execute a script that requires authorization to access an API, the code will only...

How do I nest a KeyValue pair within AWS CDK PolicyStatement AddAction method?

I am currently trying to replicate another developer's powershell script functionality using the AWS CDK with a .NET application. He is generating a CloudFormation template (YAML) using...

Add List<> To Another List<> by filtering

I have one model class: public class Person { public int Id { get; set; } public string Name { get; set; } } When I adding two list with this: List<Person> people1 = new List<Person> { ...

How to update the data range of an existing graph using app script? [Google Sheets]

I have created the script below, which runs from an onedit function for when cell J1 is edited. The graph exists in the sheet titled 'Daily Data'. The data it will be using is from a sheet titled...

Jodit: pasting text that calls the html paste pop up fails

I'm adding a Jodit editor to a webpage. I'd like to be able to paste formatted text from, say, MS Word, into the editor. I can paste text that does not call the little pop-up for pasting html...

React-Quill - addRange(): The given range isn't in document

I am trying to make a simple blog using React-Quill text editor. I want to get the value of the ReactQuill Editor and preview it on a different route. I've been trying to achieve this since quite...

The instance of entity type 'Outlet' cannot be tracked because another instance with the key value is already being tracked

I want to use AddRange() method while store employee salaries. But at the execution context.context.EmployeeSalaries.AddRange(employeeSalaries); I get the exception The instance of entity type...

An error occurred while writing to logger(s). (Cannot open log for source '.NET Runtime'. You may not have write access.)

I have created a web application in .Net core 3.1 and trying to access DB using EF Core. While accessing it, I am getting below error. Strangely, it was working before and nothing have changed on...

Outlier removal using the minimal cost function hiding the second image

Update After receiving no response for the question I posted yesterday, I did my own research on how to complete the Matrix entries for Matrix A and Matrix B so that my method would calculate and...