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Channel

C# 1001 notes

@csharp_1001_notes

On this record: Topic · Growth · Engagement · What this channel posts · Advertising · Posts · Citations · Handles named that no longer answer · Telegram's recommendations · Cite this entry

6,651subscribers

+84 since we began measuring on 6 August 2026

Risers and fallers across the register · movement among entries of 3,162–10,000.

Register entry

Telegram ID-1001254599847
TypeChannel
Username@csharp_1001_notes
CreatedBetween 1 March 2018 and 31 August 2021 — estimated from Telegram’s id allocation, not measured. How this range is calculated.
First recorded6 August 2026
Last confirmed live25 September 2026
Measurements held15
Confirmed unchanged1 time, most recently 25 September 2026
On Telegramt.me/csharp_1001_notes

Topic

Technology — a classification, not a measurement. An on-box language model (Qwen3.6-35B-A3B-FP8, prompt version 1) read this channel’s own recent posts on 12 September 2026 and assigned it the closest of 31 fixed categories, at 99% confidence. This is a model’s judgement about what the channel is likely to be about, not a fact this register measured the way a subscriber count or a view count is measured — it can be revised on a later pass, and it carries no weight anywhere else on this page. How this classification works, and why it has no browse page of its own yet.

Growth

6,5546,6516,602.56 August 2026 — 6,567 subscribers6 August 2026 — 6,567 subscribers9 August 2026 — 6,561 subscribers12 August 2026 — 6,556 subscribers16 August 2026 — 6,554 subscribers19 August 2026 — 6,556 subscribers22 August 2026 — 6,564 subscribers26 August 2026 — 6,605 subscribers29 August 2026 — 6,618 subscribers31 August 2026 — 6,617 subscribers4 September 2026 — 6,632 subscribers9 September 2026 — 6,642 subscribers13 September 2026 — 6,637 subscribers17 September 2026 — 6,636 subscribers25 September 2026 — 6,651 subscribers6 August 202625 September 2026
15 measurements spanning 51 days, net +84. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 6,539–6,666 and does not start at zero.
Measurement log — every subscribers count we have recorded
Measured (UTC)SubscribersChange
25 Sept 2026, 16:576,651+15
17 Sept 2026, 09:366,636-1
13 Sept 2026, 17:566,637-5
9 Sept 2026, 16:386,642+10
4 Sept 2026, 10:016,632+15
31 Aug 2026, 20:136,617-1
29 Aug 2026, 03:596,618+13
26 Aug 2026, 05:036,605+41
22 Aug 2026, 21:366,564+8
19 Aug 2026, 12:026,556+2
16 Aug 2026, 13:576,554-2
12 Aug 2026, 13:236,556-5
9 Aug 2026, 18:136,561-6
6 Aug 2026, 03:196,567no change
6 Aug 2026, 02:186,567first reading

Engagement

20 posts held, back to 21 May 2026 — the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 9 pages of Telegram’s post history, 20 posts per page.

Nothing published in the last 30 days. ERR and ER are rolling 30-day measures, so there is nothing to compute — we hold 20 posts for this entry, the most recent from 8 August 2026. An engagement rate over an empty window would be a number about nothing.

What this channel posts

Video runtime
53s
Average length
53s

Measured directly from 1 video with a duration reading, out of the posts we hold for this channel — not this channel’s whole posting history, only the sample this register has actually read. An exact reading to the second, taken from the post itself rather than from Telegram’s own rounded chrome, so it carries no ≈ mark.

Advertising

Ad load
15.0%
3 of 20 posts carry an ad marker
Regulatory tokens
3
posts carrying an erid · 3 distinct tokens
Median views · ads
1,840
over 3 measured posts
Median views · rest
1,900
over 17 measured posts

An ad marker, not a judgement about a post. A post is counted here because it carries one of two explicit markings: an erid token, which Russian law has required on paid placements since 2022 and which is issued against a specific advertising contract, or a #реклама / #ad hashtag in the body, which is the channel declaring it itself. The first is documentary; the second is a self-declaration and is weaker. No classifier reads the text and decides — nothing on this site guesses that a post is an advertisement.

This is a floor, and it can only ever be a floor. A channel that runs paid placements without marking them produces no marker for us to count, and an unmarked ad is indistinguishable from an ordinary post on the public surface. The ad load above therefore means “the share of posts that declared themselves”, never “the share of posts that were paid for”. A low figure is not evidence of a channel that runs few ads.

Both figures are medians, and no ratio between them is published. Each is a view reading that actually occurred on a post, picked by percentile_disc rather than averaged, so one viral post cannot move it and no interpolated value is invented between two readings. The sample on one side is under five posts, which is too thin to compare. The two figures are shown side by side with the count behind each, and deliberately not divided into a headline like “ads get x% fewer views” — an arithmetic that is easy to print and, at this sample size, means nothing.

Advertising tokens recorded on this entry
eridPostsFirst seenLast seen
2VtzqxRqZmC110 July 202610 July 2026
2W5zFG7dRZ3130 June 202630 June 2026
2W5zFGbdS73121 May 202621 May 2026

A token repeated across several posts is one advertising contract placed more than once, which is what the identifier is for. The strings are reproduced exactly as they appeared in the post or in its click-through URL and are not validated against any registry — we record the marker a channel published, and whether it resolves to a real contract is a question for the register that issued it.

Measured over the 20 most recent posts we hold, published 21 May 2026 to 8 August 2026. Views are the latest single reading held for each post, and any reading at or above 1,000 is rounded by Telegram to three significant figures.

Recent posts

8 Aug 2026, 10:50 UTC793 viewsread 12 August 2026

🚀 C# 15 меняет подход к `unsafe`: указатели больше не означают автоматически опасный код Раньше в C# сам факт использования указателя требовал: unsafe { int* ptr; } Теперь язык движется к более точной модели: опасным считается не наличие указателя, а операция, которая реально работает с unmanaged-памятью. В preview-версии C# 15 уже не требуют unsafe: ✅ объявление pointer-типа ✅ получение адреса через & ✅ …

3 Aug 2026, 13:16 UTC≈1,190 viewsread 12 August 2026

🔥 EF Core migrations - это компилятор схемы базы, а не кнопка «создать таблицу» Опытный C#-разработчик не оставляет бизнес-инварианты только внутри SaveChangesAsync(). Проверку в приложении можно обойти прямым SQL, импортом данных, фоновым процессом или второй версией сервиса. Поэтому правила, нарушение которых делает данные некорректными, стоит закреплять в самой базе. public sealed class ProductConfiguration …

28 Jul 2026, 11:45 UTC≈1,840 viewsread 12 August 2026
Video

🚀 Claude Opus 5 за 24 часа собрал собственный космический симулятор Разработчик запустил модель на одну непрерывную сессию и получил The Long Silence - полноценную браузерную игру об исследовании космоса. По словам автора, весь код, визуал и звук создал Claude. Внутри: • процедурные звёзды, планеты, кольца и туманности • посадка на поверхность планет • перелёты между системами и fold drive • сканирование объектов,…

27 Jul 2026, 13:01 UTC≈1,840 viewsread 12 August 2026
Photo

.NET 11 готовят под эпоху AI Microsoft собрала ключевые .NET-сессии с Build 2026. Фокус - AI, агенты и развитие C#. Что показали: - union types в C#; - улучшения runtime, SDK и производительности в .NET 11; - инструменты для добавления AI в C#-приложения; - agentic web в ASP.NET Core и Blazor; - локальные AI-модели и on-device inference через .NET MAUI; - новый dotnetup для установки и обновления SDK/runtime. Важ…

27 Jul 2026, 11:03 UTC≈1,670 viewsread 12 August 2026
Photo

Каждый год в середине лета мы с друзьями собираемся на E-CODE. Ещё относительно молодая конфа Ozon Tech стала уже своего рода легендой. Не удивительно: хардовость официальной части здесь не уступает громкости афтерпати. На E-CODE 2026 нас по части бэкэнда ждут: • Runtime Async с его + и – • трассировка с eBPF • ускорение на SIMD • построение кастомной real-time системы видеоаналитики • сравнительный анализ алгоритм…

18 Jul 2026, 12:10 UTC≈1,900 viewsread 12 August 2026
Photo

🔥 Хочешь быстрее расти в IT? Хватит учиться в одиночку В IT прокачивается тот, кто каждый день видит сильные идеи, новые инструменты, реальные задачи, вакансии и разборы. Окружение решает больше, чем кажется. Собрал папки и каналы, где можно быстрее влиться в нужное направление, следить за трендами и не вариться в своём пузыре. AI: t.me/ai_machinelearning_big_data Python: t.me/pythonl Linux: t.me/linuxacademiya Х…

14 Jul 2026, 15:10 UTC≈2,270 viewsread 12 August 2026

Полезный Docker-трюк для .NET: кэшируйте NuGet-пакеты через BuildKit, а не скачивайте их заново при каждой сборке. # syntax=docker/dockerfile:1.7 FROM mcr.microsoft.com/dotnet/sdk:9.0 AS build WORKDIR /src COPY *.csproj . RUN --mount=type=cache,target=/root/.nuget/packages \ dotnet restore COPY . . RUN --mount=type=cache,target=/root/.nuget/packages \ dotnet publish -c Release -o /app NuGet-кэш не попа…

10 Jul 2026, 11:48 UTC≈2,340 viewsread 12 August 2026
Photo

⚡️ GPT-5.6 РЕЛИЗ OpenAI выкатили сразу три новые модели. • Sol - заявлено, что модель мощнее Mythos. Доступ для платных пользователей обещают в течение 24 часов. На Terminal Bench 2.1 с настройкой Ultra модель выбивает рекордные 91,9%. Первые тестеры отдельно отмечают сильную работу с интерфейсами: она уверенно собирает UI для приложений и сайтов, а не просто генерирует сырой код. • Terra - уровень Fable 5. Буде…

10 Jul 2026, 09:48 UTC≈1,840 viewsread 12 August 2026
Advertisementerid 2VtzqxRqZmCPhoto

AI-инструменты стали стандартной частью стека C#/.NET-разработчиков: ассистенты в IDE, генерация кода и тестов, помощь с документацией и ревью. По данным отраслевых отчётов, 80–90% инженеров уже используют AI-сервисы, а 97% компаний встроили AI в SDLC. Однако разрыв сегодня проходит не по доступу к моделям. У одних команд AI встроен в мультиагентные пайплайны, SDD подход и метрики качества. У других остаётся локальн…

30 Jun 2026, 15:45 UTC≈1,860 viewsread 12 August 2026

Record-типы в C#: когда модель данных не должна быть обычным class record в C# удобен там, где объект описывает данные, а не поведение и идентичность. Типичный пример: public record User(string Name, int Age); Компилятор сам сгенерирует конструктор, Equals, GetHashCode, ToString и деконструкцию. Но главное отличие не в сокращении кода, а в семантике. Обычный class сравнивается по ссылке: var a = new UserClas…

30 Jun 2026, 14:31 UTC≈1,410 viewsread 12 August 2026
Advertisementerid 2W5zFG7dRZ3Photo

Методы, их перегрузка и расширения. Бесплатный урок специализации «C#-разработчик» Методы — одна из базовых вещей в C#, без которой невозможно нормально писать, читать и поддерживать код. Но у начинающих разработчиков часто всё смешивается: где обычный метод, где перегрузка, как работает сигнатура, зачем нужны параметры по умолчанию и в каких случаях использовать params. На открытом уроке 2 июля в 20:00 разберём, ч…

24 Jun 2026, 16:30 UTC≈2,180 viewsread 12 August 2026

Продвинутый C#-трюк: обновляй `Dictionary` без двойного поиска Многие пишут так: if (dict.TryGetValue(key, out var value)) { dict[key] = value + 1; } else { dict[key] = 1; } Проблема: ты сначала ищешь ключ через TryGetValue, а потом снова лезешь в словарь через dict[key]. В hot path это лишняя работа. Есть более взрослый вариант: using System.Runtime.InteropServices; ref var count = ref CollectionsM…

Showing the 12 most recent of 20 posts we hold for @csharp_1001_notes. View and reaction counts are the latest single reading for each post, not a live figure, and a recent post is still accumulating both. A view count marked ≈ was rounded by Telegram before we ever saw it — t.me prints views in full below 1,000 and to three significant figures above, so ≈1,200,000 means somewhere between 1,150,000 and 1,249,999. Unmarked counts are exact. Text is reproduced from the public post preview and truncated for length.

Mentions

Named by 48 registered channels — every channel on the register whose own posts have named this one, by its current username or any other username it currently holds, merged from two separately captured readings of the same fact so a namer caught by only one of them is not missed and a namer both caught is not counted twice. A username this channel has since dropped is not matched — that handle may belong to someone else now, and crediting today’s namer to yesterday’s owner would misattribute it. The 24 listed below are the most frequent namers; the rest are counted above but not each listed.

A mention is a weaker signal than a forward and is counted separately for that reason — naming a channel is not republishing it, and a handle in a post body is easy to place deliberately. The post counts beside each row below are distinct posts in which the handle appeared, from posts we have read on both sides — the “Named by N registered channels” figure above is a different count, of distinct NAMING CHANNELS rather than posts, and is not the sum of the rows under it.

Appears in Telegram’s recommendations for other channels

The reverse of the list above, and a different kind of signal. This does not require this channel to have ever been asked about directly — each row below is a channel we DID ask Telegram about, whose Telegram-generated list happened to include this one. A channel can appear here with an empty list above it, because being named by someone else’s query is independent of having been queried itself.

Linux Academy
@linuxacademiya · 28,434
Telegram ranks this channel #38 of 84 here — alongside 83 others — read 9 September 2026
DevOps
@DevOPSitsec · 23,684
Telegram ranks this channel #42 of 90 here — alongside 89 others — read 18 September 2026
Unity & Unreal | GameDev
@unity_gamedev_unreal · 32,817
Telegram ranks this channel #61 of 76 here — alongside 75 others — read 4 September 2026
Data Science. SQL hub
@sqlhub · 35,960
Telegram ranks this channel #64 of 87 here — alongside 86 others — read 2 September 2026

This channel appears in 4 seed channels' Telegram-generated recommendation lists in total. Each is Telegram’s list for THAT channel, not this one — see how this is measured.

Cite this entry

A live page changes as we take new readings, so a citation should name the measurement it is based on, not just the URL. The line below cites the subscriber count as measured 25 September 2026 — this entry's latest reading, not the date you are reading this.

“C# 1001 notes” (@csharp_1001_notes), 6,651 subscribers as measured 25 September 2026. Telegram Register, tgregister.com/channel/csharp_1001_notes.

Full measurement history, CC BY 4.0. Every reading this register holds for this entry, not just the latest one, as a dated, downloadable record: CSV · JSON. Free to use with attribution to tgregister.com. Each file carries its own generation timestamp, which is the figure to cite for exactly when the data was retrieved.