C#

🗓 **English Speaking Club — Tuesday Meetup at Surf Coffee (Moscow, Veskovsky Lane, 3)** Want to practice your English, meet new people, and have some fun? *Join our English Speaking Club this Wednesday at 19:00 at Surf Coffee (Moscow, Veskovsky Lane, 3)! ☕️* 💬 **What to Expect:** We meet in a **friendly atmosphere to chat 1-on-1 in English — every 15–20 minutes you’ll switch partners**, so you get to talk to many different people. **After that, we play some English board games** — it’s a great way to relax, laugh, and keep practicing naturally. 🎲✨ ⏳ **Duration:** *Around 2 hours total:* 🗣 *1.5 hours of chatting* ☕️ *5-min break* 🎯 *25 min of English games* 👥 **Who Can Join:** *Our club welcomes everyone from Intermediate to Advanced (B2–C2) levels. We’re here to practice and get better together.* 💵 **Price & Registration:** * 🇷🇺 **For locals:** *600₽ + a drink at the café* * 📱 **Sign up in advance** *via* [Telegram-bot](https://t.me/Payment_RealTalkEnglish_bot) * **✨ If it’s your first time,** *you can pay at the meeting — welcome!* * 🌍 ***For foreigners: FREE entry — no sign-up required!*** ⚡️ **Club Rules:** * ***Speak English only.*** * ***Don’t “teach” or correct others unless they ask for help.*** * ***Be respectful and open-minded — we’re all here to connect and learn together.*** * ***Don’t impose your religious, political, or other personal views on others.*** * ***Please order a drink or snack to support the café that hosts us.*** ☕️ ✏️ **Questions?** *Don't hesitate to reach out to Kirill via* [WhatsApp ](https://wa.me/+79857387761) / [Telegram](https://t.me/RealTalkSpeakingClub).

🗓 **English Speaking Club — Tuesday Meetup at Surf Coffee (Moscow, Veskovsky Lane, 3)** Want to practice your English, meet new people, and have some fun? *Join our English Speaking Club this Wednesday at 19:00 at Surf Coffee (Moscow, Veskovsky Lane, 3)! ☕️* 💬 **What to Expect:** We meet in a **friendly atmosphere to chat 1-on-1 in English — every 15–20 minutes you’ll switch partners**, so you get to talk to many different people. **After that, we play some English board games** — it’s a great way to relax, laugh, and keep practicing naturally. 🎲✨ ⏳ **Duration:** *Around 2 hours total:* 🗣 *1.5 hours of chatting* ☕️ *5-min break* 🎯 *25 min of English games* 👥 **Who Can Join:** *Our club welcomes everyone from Intermediate to Advanced (B2–C2) levels. We’re here to practice and get better together.* 💵 **Price & Registration:** * 🇷🇺 **For locals:** *600₽ + a drink at the café* * 📱 **Sign up in advance** *via* [Telegram-bot](https://t.me/Payment_RealTalkEnglish_bot) * **✨ If it’s your first time,** *you can pay at the meeting — welcome!* * 🌍 ***For foreigners: FREE entry — no sign-up required!*** ⚡️ **Club Rules:** * ***Speak English only.*** * ***Don’t “teach” or correct others unless they ask for help.*** * ***Be respectful and open-minded — we’re all here to connect and learn together.*** * ***Don’t impose your religious, political, or other personal views on others.*** * ***Please order a drink or snack to support the café that hosts us.*** ☕️ ✏️ **Questions?** *Don't hesitate to reach out to Kirill via* [WhatsApp ](https://wa.me/+79857387761) / [Telegram](https://t.me/RealTalkSpeakingClub).

**🗓 English Speaking Club — Saturday Meetup at Stars Coffee (Arbat, 19)** Want to practice your English, meet new people, and have some fun? **Join our English Speaking Club this Saturday at 15:00 at Stars Coffee (ул. Арбат, 19)! ☕️** 💬 **What to Expect:** We meet in a **friendly atmosphere to chat 1-on-1 in English — every 15–20 minutes you’ll switch partners**, so you get to talk to many different people. **After that, we play some English board games** — it’s a great way to relax, laugh, and keep practicing naturally. 🎲✨ ⏳ **Duration:** *Around 2.5 hours total:* *🗣 2 hours of chatting* *☕️ 5-min break* *🎯 25 min of English games* 👥 **Who Can Join:** *Our club welcomes everyone from Intermediate to Advanced (B2–C2) levels. We’re here to practice and get better together.* 💵 **Price & Registration:** * 🇷🇺 **For locals:** 600₽ *+ a drink at the café* * 📱 **Sign up in advance** *via* [Telegram-bot](https://t.me/Payment_RealTalkEnglish_bot) * ✨ **If it’s your first time**, *you can pay at the meeting — welcome!* * 🌍 ***For foreigners: FREE entry — no sign-up required!*** ⚡️ **Club Rules:** * ***Speak English only.*** * ***Don’t “teach” or correct others unless they ask for help.*** * ***Be respectful and open-minded — we’re all here to connect and learn together.*** * ***Don’t impose your religious, political, or other personal views on others.*** * ***Please order a drink or snack to support the café that hosts us.*** ☕️ ✏️ **Questions?** *Don't hesitate to reach out to Kirill via* [WhatsApp](https://wa.me/+79857387761) / [Telegram](https://t.me/RealTalkSpeakingClub). **💻 Stay connected:** [Our Telegram channel](https://t.me/RealTalk_english_speaking_club) [Our VK](https://vk.com/yourrealtalk)

🗓 **English Speaking Club — Sunday Meetup at Grabli (Pyatnitskaya Street, 27с1)** Want to practice your English, meet new people, and have some fun? *Join our English Speaking Club this Sunday at 15:00 at Grabli (Pyatnitskaya Street, 27с1)! ☕️* 💬 **What to Expect:** We meet in a **friendly atmosphere to chat 1-on-1 in English — every 15–20 minutes you’ll switch partners**, so you get to talk to many different people. **After that, we play some English board games** — it’s a great way to relax, laugh, and keep practicing naturally. 🎲✨ ⏳ **Duration:** *Around 2 hours total:* 🗣 *1.5 hours of chatting* ☕️ *5-min break* 🎯 *25 min of English games* 👥 **Who Can Join:** *Our club welcomes everyone from Intermediate to Advanced (B2–C2) levels. We’re here to practice and get better together.* 💵 **Price & Registration:** * 🇷🇺 **For locals: 600₽** *+ a drink at the café* * 📱 **Sign up in advance** *via* [Telegram-bot](https://t.me/Payment_RealTalkEnglish_bot) * ✨ **If it’s your first time**, *you can pay at the meeting — welcome!* * 🌍 ***For foreigners: FREE entry — no sign-up required!*** ⚡️ **Club Rules:** * ***Speak English only.*** * ***Don’t “teach” or correct others unless they ask for help.*** * ***Be respectful and open-minded — we’re all here to connect and learn together.*** * ***Don’t impose your religious, political, or other personal views on others.*** * ***Please order a drink or snack to support the café that hosts us.*** ☕️ ✏️ **Questions?** *Don't hesitate to reach out to Kirill via* [WhatsApp ](https://wa.me/+79857387761) / [Telegram](https://t.me/RealTalkSpeakingClub). **💻 Stay connected:** [Our Telegram channel](https://t.me/RealTalk_english_speaking_club) [Our VK](https://vk.com/yourrealtalk)

**🗓 English Speaking Club — Friday Meetup at Stars Coffee (Arbat, 19)** Want to practice your English, meet new people, and have some fun? **Join our English Speaking Club this Friday at 19:00 at Stars Coffee (ул. Арбат, 19)!** ☕️ 💬 **What to Expect:** We meet in a **friendly atmosphere to chat 1-on-1 in English — every 15–20 minutes you’ll switch partners,** so you get to talk to many different people. **After that, we play some English board games** — it’s a great way to relax, laugh, and keep practicing naturally. 🎲✨ ⏳ **Duration:** *Around 2 hours total:* *🗣 1.5 hours of chatting* *☕️ 5-min break* *🎯 25 min of English games* 👥 **Who Can Join:** *Our club welcomes everyone from Intermediate to Advanced (B2–C2) levels. We’re here to practice and get better together.* 💵 **Price & Registration:** * 🇷🇺 **For locals:** *600₽ + a drink at the café* * 📱 **Sign up in advance** *via* [Telegram-bot](https://t.me/Payment_RealTalkEnglish_bot) * ✨ **If it’s your first time**\*, you can pay at the meeting — welcome!\* * ***🌍 For foreigners: FREE entry — no sign-up required!*** ⚡️ **Club Rules:** * Speak English only. * Don’t “teach” or correct others unless they ask for help. * Be respectful and open-minded — we’re all here to connect and learn together. * Don’t impose your religious, political, or other personal views on others. * Please order a drink or snack to support the café that hosts us. ☕️ ✏️ **Questions?** Don't hesitate to reach out to Kirill via [WhatsApp](https://wa.me/+79857387761) / [Telegram](https://t.me/RealTalkSpeakingClub).

🗓 **English Speaking Club — Wednesday Meetup at Stars Coffee (Butyrskiy Val, 10)** Want to practice your English, meet new people, and have some fun? *Join our English Speaking Club this Wednesday at 19:00 at Stars Coffee (ул. Бутырский Вал, 10)! ☕️* 💬 **What to Expect:** We meet in a **friendly atmosphere to chat 1-on-1 in English — every 15–20 minutes you’ll switch partners**, so you get to talk to many different people. **After that, we play some English board games** — it’s a great way to relax, laugh, and keep practicing naturally. 🎲✨ ⏳ **Duration:** *Around 2 hours total:* 🗣 *1.5 hours of chatting* ☕️ *5-min break* 🎯 *25 min of English games* 👥 **Who Can Join:** *Our club welcomes everyone from Intermediate to Advanced (B2–C2) levels. We’re here to practice and get better together.* 💵 **Price & Registration:** * 🇷🇺 **For locals:** *600₽ + a drink at the café* * **📱Sign up in advance** *via* [Telegram-bot](https://t.me/Payment_RealTalkEnglish_bot) * ✨ **If it’s your first time,** *you can pay at the meeting — welcome!* * 🌍 ***For foreigners: FREE entry — no sign-up required!*** ⚡️ **Club Rules:** * ***Speak English only.*** * ***Don’t “teach” or correct others unless they ask for help.*** * ***Be respectful and open-minded — we’re all here to connect and learn together.*** * ***Don’t impose your religious, political, or other personal views on others.*** * ***Please order a drink or snack to support the café that hosts us.*** ☕️ ✏️ **Questions?** *Don't hesitate to reach out to Kirill via* [WhatsApp ](https://wa.me/+79857387761) / [Telegram](https://t.me/RealTalkSpeakingClub). **💻 Stay connected:** [Our Telegram channel](https://t.me/RealTalk_english_speaking_club) [Our VK](https://vk.com/yourrealtalk)

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 **Abstract** TBD **YouTube Link** TBA

On Thursday, March 12, 2026, we will meet at the TEKSystems offices at 700 N Hurstbourne Pkwy. Doors will open at 6:00 p.m., and the presentations will begin sharply at 6:30 p.m. Along with an excellent presentation, TEKsystems will provide food. Please RSVP so we know how much food to order. Afterward, we will go to Brick House Tavern for drinks and food to continue the conversation. The session will also be broadcast at https://twitch.tv/TaleLearnCode. ### Much Ado About Nullable - C# Nullable Reference Types Explained In 2019 (C# 8.0) Microsoft introduced a feature that has generated a lot of confusion, debate and outright dissent. I'm talking about Nullable Reference Types. In this presentation, I we dig into this feature, explore why it exists, what problem it tries to solve, how it works, and how people have critiqued it, so that you as a programmer can decide if and how you want to use it.

Window functions have nothing to do with the Windows operating system but provide a “window” to a result set when used in SQL queries. They are powerful, set-based methods to view data in unexpected ways. Window functions provide easy, set-based solutions to solve some common problems: * Using running totals * Performing operations in intervals * Identifying data gaps and islands * Performing aggregates without losing detail Many people are confused by window functions and do not know how to use them properly. This session will explore window functions, how they work, and how to use them. Demonstrations with several examples will solidify how window functions can simplify queries and make them more powerful.

Bring your work or your hobby, hang out, and code with us. Follow @buckeyecocoa for more information.

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: **Python Tips and Tricks on iOS** **Mike Kennedy** What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

We will show a variety of methods for building agents that run in Microsoft Foundry. This covers the different types of agents: Prompt, Multi, and Hosted, as well as the development lifecycle using evals and traces.

Columbus Code & Coffee is an inclusive, informal co-working session. People of all skill levels attend, and we love it that way. Many people (optionally) bring projects to work on, and many other people (optionally) socialize the entire time. It's entirely up to you! **What to Expect at the Intro Circle** \~\~\~\~\~\~\~\~\~\~\~\~\~ Near the beginning of the event (1:30 pm), we do a standup: * Organizer announcements, updates, and logistics Round 1 - (7 secs max): * Your name * What you're working on * What you can help others with Round 2: * Community events you wanna plug. If none, that's cool too. Round 3: * Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool. After the introduction circle, everything is self-organized! Feel free to work alone, pair up, attend one of our workshops/presentations, or mingle!