C#

Indítsd 2026-ot argentin tangóval! Nincs szükséged semmilyen előzetes tánctudásra, és egyedül vagy párban is jelentkezhetsz! Várunk szeretettel minden tangózni vágyót! Oktató: Szeghalmi Endre Kezdés: 2026. jan. 12., hétfő 20:00 – 21:00. Az órák minden hétfőn ugyanebben az időpontban folytatódnak. Helyszín: Roxy Stúdió, Tátra u. 4. Jelentkezés és további infók: A [www.tangolibre.hu/tango-tanfolyam/](http://www.tangolibre.hu/tango-tanfolyam/?fbclid=IwZXh0bgNhZW0CMTAAYnJpZBExbDFsUmtNd2dIQVpmSHY3TXNydGMGYXBwX2lkEDIyMjAzOTE3ODgyMDA4OTIAAR50fTXksGSsXPYTo3IYigrZIXxtxdytBSer6v-jm9Y7HrcgPGLXn9R-dfaPCg_aem_0misiL79POQIY53C46m1Mw) oldalon találsz minden részletet, és itt tudsz regisztrálni. ✦ ✦ ✦ ✦ ✦ ✦ ✦ ✦ Start 2026 with Argentine tango! No prior dance experience is required, and you can sign up either alone or with a partner. We warmly welcome everyone who would like to dance tango! Instructor: Endre Szeghalmi Start: Monday, January 12, 2026, 8:00–9:00 PM Classes will continue every Monday at the same time. Venue: Roxy Studio, Tátra u. 4. Registration and more information: [www.tangolibre.hu/en/tango-classes-for-totally-beginners/](http://www.tangolibre.hu/en/tango-classes-for-totally-beginners/?fbclid=IwZXh0bgNhZW0CMTAAYnJpZBExbDFsUmtNd2dIQVpmSHY3TXNydGMGYXBwX2lkEDIyMjAzOTE3ODgyMDA4OTIAAR50fTXksGSsXPYTo3IYigrZIXxtxdytBSer6v-jm9Y7HrcgPGLXn9R-dfaPCg_aem_0misiL79POQIY53C46m1Mw)

Enjoy your time learning and practicing public speaking with Budapest Toastmasters! There is no need to speak or any previous experience in Public Speaking. --- 👉Keycode: 12, 3rd Floor. Please arrive by 6:20 PM, the meeting starts at 6:30 PM👉No registration or dress code is needed, the event is FREE.👉NOTE: We will have signs in the place so you can locate easily the Toastmasters Meeting room. --- Toastmasters International is a world leader in communication and leadership development. Our membership is 313,000 strong. Members improve their speaking and leadership skills by attending one of the 14,650 clubs in 126 countries that make up our global network of meeting locations. The world needs leaders. Leaders head families, coach teams, run businesses, and mentor others. These leaders must not only accomplish but must also communicate. By regularly giving speeches, gaining feedback, leading teams, and guiding others to achieve their goals in a supportive atmosphere, leaders emerge from the Toastmasters program. Every Toastmaster's journey begins with a single speech. During their journey, they learn to tell their stories. They listen and answer. They plan and lead. They give feedback—and accept it. Through our community of learners, they find their path to leadership.

Come and play boardgames with others in English! This event is hosted by the [Játszóház projekt](https://www.facebook.com/jatszohazprojekt). This group organizes game nights, they provide the games and explain the rules if you need it. They have a huge collection of board games, check it out [here](https://boardgamegeek.com/collection/user/jatszohazprojekt?own=1&subtype=boardgame&ff=1). If you wish to play with a specific game, they will ask what games to bring, usually on the day of the event in a facebook post. Check out the [event on facebook](https://www.facebook.com/events/1649367082889890) for more information. We usually split up into smaller groups based on games, and switch as the night goes on, so you can arrive late. You can bring your own game or choose one from the pile! ***Important*** **This event is not free!** You will have to buy a wristband at the entrace for 1000 HUF (500 HUF for students). You can pay with cash or you can buy your ticket [here](https://www.tixa.hu/jhz260309). You can buy drinks and food at the bar, please don't bring your own — — — Let me know if you have any questions, you can contact me or ask in the comment section. We also have a WhatsApp group chat, feel free to join [here](https://chat.whatsapp.com/JThEZv724MJ3hvnwBpfJA7)

Welcome to Salsa Made Easy! Learn salsa step by step with our beginner-friendly classes. Perfect for men and women who want to dance confidently, have fun, and enjoy the rhythm of Latin dance Classes are every Monday from 18:30-20:00 \*\*Classes are in English only\*\* 4 weeks class-26000FT Single classes-7500FT Can't join our weekly classes? No problem you can learn from the comfort of your home with our online beginners classes, check it out www.salsamadeeasy.com

**Bouldering & Rope Climbing \| Small Groups \| Friendly Atmosphere** Want to try climbing or get more confident on the wall? Join our **beginner-friendly climbing sessions** for adults and kids (9+). No prior experience needed — just curiosity and willingness to move 💪 **Languages:** English / Hungarian / Russian *** ### 🔹 Monday — Bouldering (Low Wall) Perfect for beginners: low wall, soft mats, focus on strength, technique and movement. 🕔 **17:00–18:40** 📍 Mountex, 1134 Budapest, Váci út 19 📌 **Pre-registration required** **Training:** 4000 HUF / person **Gym entry (paid separately):** * Adults: 3500 HUF * Children under 14: 2290 HUF Equipment rental available on site. *** ### 🔹 Thursday — Rope Climbing (15 m Wall) Learn rope climbing and belaying on a **full-height wall** with an instructor. 🕔 **17:00–19:00** 📍 BigWall, 1047 Budapest, Károlyi István u. 10 📌 **Pre-registration required** **Training:** 5000 HUF / person **Gym entry (paid separately):** * Adults: 3990 HUF * Students (under 26): 2990 HUF * Children under 14: 1990 HUF All necessary equipment can be rented at the gym. *** ### ⭐ Why join? * Beginner-friendly, supportive coaching * Small groups and personal attention * Adults & kids train together * Safe environment and clear instruction * Great way to get stronger and meet active people * In the warm season, we **occasionally move from the gym to real rock outdoors** *** ### 💳 Regular climbers If you attend **both days regularly**, you can buy a pass: **29,000 HUF — 8 consecutive sessions** *** 👉 **Sign up in advance — spots are limited.** Feel free to message me if you have questions!

**REGISTER HERE:** [https://onebetsson.typeform.com/betssonmeetup](https://onebetsson.typeform.com/betssonmeetup "https://onebetsson.typeform.com/betssonmeetup") We’re thrilled to invite you to our next **Betsson Group** **Data & AI MeetUp**, where innovation meets real‑world impact! Join us on **March 11th from 17:45** for an evening packed with inspiring talks, live demos, and networking with fellow tech and data enthusiasts. This time, we’re diving deep into **two exciting topics shaping the future of software development and enterprise AI**: 📌 **Topic 1: “The Revolution of AI in Software Development”** **Speaker:** Cleber De Lima, Director of Data & AI, Betsson Group This presentation explores how AI has fundamentally changed software development and how you can take advantage of AI capabilities to become **10X more productive**. Cleber will share practical strategies for leveraging AI tools across the entire development lifecycle — from writing and testing code to debugging and deploying - enabling you to ship features faster and focus on high‑value problem‑solving. Whether you’re just starting to explore AI tools or looking to optimize your workflow, you’ll walk away with **actionable insights** to immediately boost your productivity. 📌 **Topic 2: “Re‑Architecting for the New World”** **Speaker:** Tatiana Petrache, Senior AI Specialist & Alexander Pedersen, Enterprise Account Executive, Snowflake Join Snowflake to learn how leading enterprises are **shipping AI‑powered products in minutes - not months -** while maintaining strong governance, performance, and quality. This session breaks down the blueprint for a **lean, high‑efficiency foundation** designed to scale AI and machine learning across the entire ecosystem. You’ll also see a **live demo** showing how to build a **production‑ready AI app in minutes**, ready for the New World. 🎯 Whether you’re a **data scientist, engineer, analyst, or tech enthusiast**, this event promises valuable insights, engaging discussions, and the chance to connect with like‑minded professionals. Seats fill up quickly, so don’t wait, reserve your spot now and be part of an inspiring evening of learning, networking, and innovation! **REGISTER HERE:** [https://onebetsson.typeform.com/betssonmeetup](https://onebetsson.typeform.com/betssonmeetup "https://onebetsson.typeform.com/betssonmeetup")

Ebben az előadásban 3–4 vezető EDR működését vizsgáljuk meg technikai szinten: hogyan hookolják a rendszer DLL-eket, hogyan használnak ETW-t és miként integrálják az AMSI-t. Az előadás bemutatja a patch/bypass alapelveit is, gyakorlati példákon keresztül. Célunk egy erős technikai alap megadása azoknak, akik mélyebben szeretnének elindulni az EDR-ek elemzésének és megkerülésének világában. Előadó: Django.

Következő meetuponkon a Morgan Stanley lát minket vendégül. Agenda: 17:30 - 18:00 Regisztráció 18:00 Köszöntő: HUPPUG és Morgan Stanley Session 1: Copilot Studio in Practice: Agents That Simply Work - Jaray István Session 2: Can you make Citizen Development work? What I learned from my first Power Platform projects - Marcell Pörczi 19:15 - 20:00 Networking Ahogy eddig megszokhattátok, az esemény nem lesz közvetítve, illetve felvéve. A helyek limitáltak, így megkérnénk Titeket, ha nem tudnátok jönni, akkor szabadítsátok fel a helyeteket. A helyszínt és a cateringet a Morgan Stanley biztosítja! A helyek befoglalása megjelenés nélkül befolyásolhatja a következő eseményeinken való részvétel lehetőségét. 🇺🇸 At our next meetup, our host will be hosted Morgan Stanley. Agenda 17:30 – 18:00 Registration 18:00 Welcome: HUPPUG and Morgan Stanley Session 1: Copilot Studio in Practice: Agents That Simply Work – István Jaray Session 2: Can you Make Citizen Development Work? What I Learned from My First Power Platform Projects – Marcell Pörczi 19:15 – 20:00 Networking As you’ve come to expect, the event will not be streamed or recorded. Since the number of seats is limited, we kindly ask that if you cannot attend, please free up your spot. The venue and catering are provided by Morgan Stanley. Please note that reserving a seat and not attending may affect your ability to participate in our future events.

Középhaladó argentin tangó óra heti rendszerességgel januártól! Várunk szeretettel! **Időpont**: Szerda, 19.00 - 20.15 (első alkalom 2026-ban: **január 6.)** **Helyszín**: Shift Stúdió, Andrássy út 35., 2. em., 12-es kapucsengő **Oktatók** Serbán Andrea és Szeghalmi Endre [További részletek és órarend](www.tangolibre.hu) ✦✦✦ Intermediate Argentine tango class held on a **weekly basis**. **🕒 Time** Wednesday, 7:00–8:15 PM **📍 Location** Shift Studio, Andrássy út 35., 2nd floor **Teachers** Andrea Serban & Endre Szeghalmi Prices: [https://tangolibre.hu/en/prices/](https://tangolibre.hu/en/prices/)

Csatlakozz a KEZDŐ 2 kurzusunkhoz! **Időpont:** Keddenként 20:00–21:00 (első alkalom 2026-ban: **január 6.)** **Helyszín**: Roxy Táncstúdió Tátra utca 4., 1136 Budapest [Teljes órarendünk](https://tangolibre.hu/orarend/) **Tanárok**: Szeghalmi Endre és Serbán Andrea ✦✦✦ Join our **Beginner 2 Argentine Tango course**! This class is for dancers who already know the basics and would like to continue developing their technique, connection, and enjoyment of tango. **🕒 Time** Tuesdays 8:00–9:00 PM First class in 2026: **January 6** **📍 Location** Roxy Dance Studio Tátra utca 4., 1136 Budapest **Teachers** Endre Szeghalmi & Andrea Serbán **Prices:**[ https://tangolibre.hu/en/prices/](https://tangolibre.hu/en/prices/)

Csatlakozz a Kezdő 1 kurzusunkhoz! Ez a kurzus a **2025 szeptemberében indult Teljesen kezdő csoportunk folytatása**, de új érdeklődők is csatlakozhatnak, ha már van minimális tapasztalatuk argentin tangóban. **Időpont:** Keddenként 19:00–20:00 (első alkalom 2026-ban: január 6.) **Helyszín:** Roxy Táncstúdió, Tátra utca 4., 1136 Budapest **Tanárok:** Szeghalmi Endre és Serbán Andrea Teljes órarendünk: [https://tangolibre.hu/orarend/](https://tangolibre.hu/orarend/?fbclid=IwZXh0bgNhZW0CMTAAYnJpZBEwaDNKZFpsQVh2dUpJMklKd3NydGMGYXBwX2lkEDIyMjAzOTE3ODgyMDA4OTIAAR7-aVO75w-5o1MEitQYD_hyAji9mGat21L3FYSxxPdYQTAUrjN9qopadYwkuw_aem_cRLCRnGqUCcsUeCJj_XpyA) Árak: [https://tangolibre.hu/arak/](https://tangolibre.hu/arak/) \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Beginner 1 Argentine Tango Course – continuation** This course is the continuation of our Total Beginner group started in September 2025. New participants are also welcome if you already have some basic experience in Argentine tango. **Time:** Tuesdays 7:00–8:00 PM (First class in 2026: **January 6)** **📍 Location:** Roxy Dance Studio, Tátra utca 4., 1136 Budapest **Teachers:** Endre Szeghalmi & Andrea Serbán Prices: [https://tangolibre.hu/en/prices/](https://tangolibre.hu/en/prices/) ***

Haladó argentin tangó óra heti rendszerességgel januártól! Várunk szeretettel! **Időpont**: Szerda, 20:15 - 21:30 (első alkalom 2026-ban: **január 6.)** **Helyszín**: Shift Stúdió, Andrássy út 35., 2. em., 12-es kapucsengő **Oktatók** Serbán Andrea és Szeghalmi Endre Órarend: [https://tangolibre.hu/orarend/](https://tangolibre.hu/orarend/) ✦✦✦ Advanced Argentine tango class held on a **weekly basis**. **🕒 Time** Wednesday, 8:15–9:30 PM **📍 Location** Shift Studio, Andrássy út 35., 2nd floor **Teachers** Andrea Serban & Endre Szeghalmi Prices: [https://tangolibre.hu/en/prices/](https://tangolibre.hu/en/prices/)

**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!