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How to Fix “Object Reference Not Set to an Instance of an Object” in C#?
Mar 31, 2026.
Master the dreaded 'Object reference not set' error in C#! Learn to identify, fix, and prevent NullReferenceExceptions with practical C# and ASP.NET Core examples.
Creating an Azure Web App instance with Terraform and deploying ASP.NET Core Web API
Jan 23, 2026.
Learn how to create and manage Azure Web App instances using Terraform, an Infrastructure as Code (IaC) tool. Deploy a .NET CORE API to your newly created web app for seamless cloud migration. Simplify your Azure resource management with reusable Terraform scripts.
Server Error in ‘/’ Application – Object Reference Not Set to an Instance of an Object
Jan 16, 2026.
Troubleshoot the 'Object reference not set to an instance of an object' error in ASP.NET. Learn to identify the cause using stack traces and implement safe, defensive coding practices with null checks to prevent runtime errors.
How Do I Fix “Object Reference Not Set to an Instance of an Object” in C#?
Dec 03, 2025.
Learn simple, clear, and practical ways to fix the common C# error "Object reference not set to an instance of an object." Understand why it happens, how to identify the root cause, and how to prevent it using real-world examples.
What is the difference between class method, static method, and instance methods?
Aug 21, 2025.
In Python, methods are functions defined inside a class. They can be categorized into three types: instance methods, class methods, and static methods. Each serves a different purpose and is used in different situations. This article explains the differences in simple words with detailed explanations and examples.
C# Singleton Pattern: One Instance to Rule Them All
Apr 16, 2025.
The Singleton Design Pattern in C# ensures only one instance of a class exists and provides a global access point. It's ideal for managing shared resources like logging, configuration, or database connections.
How to Set Up an EC2 Instance with a Custom AMI
Mar 24, 2025.
A custom AMI in AWS saves time by allowing you to launch EC2 instances with pre-installed software and configurations. Instead of setting up each server manually, you can create an AMI, reuse it for multiple instances, and speed up deployments.
How to Set Up an EC2 Instance as a Web Server
Feb 20, 2025.
This article walks you through launching the instance, configuring security groups, installing Apache, and customizing your web page, enabling you to host static websites or dynamic applications on EC2.
How to Allow an EC2 Instance Access to an S3 Bucket
Feb 12, 2025.
Learn how to connect an EC2 instance with an existing S3 bucket for seamless data transfer, backups, and file storage. This step-by-step guide covers setting up permissions, using IAM roles, and accessing S3 from EC2 via the AWS CLI.
Assigning a Static Private IP While Launching an Instance in AWS
Jan 29, 2025.
Learn how to assign a static private IP to an AWS EC2 instance during launch for consistent internal communication, avoiding IP conflicts, and ensuring predictable application dependencies within a VPC subnet.
How to Attach an Elastic/Static IP to an EC2 Instance in AWS
Jan 20, 2025.
Elastic IP (EIP) in AWS is a static IPv4 address that stays fixed even if you stop/start your EC2 instance. It ensures a persistent, reliable IP that can be reassigned to different instances, offering flexibility and control.
Singleton Pattern: Ensuring a Single Instance in .NET Core
Sep 09, 2024.
In this article, we learn about Singleton Pattern: Ensuring a Single Instance in .NET Core. The Singleton Pattern ensures a class has only one instance, providing global access. It's commonly used for managing shared resources like logging, configurations, or database connections, ensuring efficient resource usage.
SQL Server on Azure VMs vs Managed Instance vs SQL Database
Aug 12, 2024.
Based on the type of the cloud service each Relational azure service use and different aspects formulated the differences and uses cases when to use each database solution.
🖥️ How to Create an Azure Container Instance in Microsoft Azure
May 16, 2024.
Learn how to deploy Azure Container Instances effortlessly with our comprehensive guide. Discover step-by-step instructions for setting up and managing containerized applications in Microsoft Azure.
Inject a DbContext Instance Into BackgroundService in .NET Core
May 05, 2024.
In this article, Learn how to inject and use a DbContext instance within a BackgroundService in .NET Core. Utilize dependency injection to access database operations from a background task, ensuring proper lifecycle management with scoped services.
Safely Changing the Instance Name of SQL Server
Jan 04, 2024.
Changing the instance name of a SQL Server involves several steps and should be done with caution. Secure process for changing the instance name of SQL Server. This guide ensures a smooth transition, covering essential steps and precautions to safeguard your SQL Server configuration.
Elastic Block Store vs Instance Store in AWS
Dec 19, 2023.
Elastic Block Store vs Instance Store in AWS.
Create EC2 Instance in AWS
Nov 21, 2023.
This article will showcase the steps to Create EC2 instance in AWS.
Creating Your Own Virtual Computer: A Step-by-Step EC2 Instance Guide on AWS
Aug 27, 2023.
Discover the Cloud's Power: Dive into the world of cloud computing with our easy-to-follow guide. Learn how to set up your very own virtual computer using AWS's EC2 instances. No prior experience needed – just your curiosity and a desire to explore the future of technology.
Connect To AWS EC2 Instance Using SSH
May 09, 2023.
Steps to connect to AWS EC2 instance using OpenSSH from Windows 10 /11.
Create Microsoft Azure Key Vault Service Instance Using Azure Cloud Portal
Mar 22, 2023.
In this article, you will learn how to create microsoft azure key vault service instance using azure cloud portal.
How To Create And Work With Manage Instance Group In Google Cloud Platform
Feb 15, 2023.
In this article, we would try to understand more about Manage Instance Group. We would also see features of Manage Instance Group like Auto Scaling, Auto Healing, and canary deployment.
Understanding Instance Templates And Leveraging Instance Templates To Simplify VM Instance Creation Process
Feb 08, 2023.
In this article, we would try to understand more about VM Instance template. We would also see how we can spin up multiple VM instances quickly using instance template mechanism.
How To Get Metadata Information Of An Azure Instance Using REST API
Jan 12, 2023.
In this article, you will learn how to get Metadata Information of an Azure Instance using REST API.
Database Recovery (1): Clone Database From One Instance To Another In SQL Server
Dec 26, 2022.
In this article,you will learn how to clone database or tables from one instance to another in SQL Server.
Azure Machine Learning - Create Compute Instance And Compute Cluster
Mar 11, 2022.
In this article, we’ll learn about Azure Machine Learning and create computer cluster and compute instance in Machine Learning Workspace in Azure which we’ll use for our project on the Azure Machine Learning Series. This article is a part of the Azure Machine Learning Series.
Setup HTTPS For Nginx On AWS EC2 Linux Instance Using Docker And Certbot
Jan 27, 2022.
How to install Https certificate in ngnix using certbot(lets encrypt) with docker
Deploy A Dockerized Laravel Application To AWS ECS With EC2 Instance Launch Type Using GitHub Actions
Jan 17, 2022.
In this article, you will learn how to deploy a docker-ized Laravel applications to AWS ECS EC2 launch type.
How A Regular User Can Cancel Running Flow Instance Automatically?
Jan 13, 2022.
In this article we will learn to allow a regular user to cancel the running FLOW instance automatically when he/she changes the status of their record to Cancelled.
Save Running FLOW Instance URL In Your Record
Jan 10, 2022.
In this article we will be looking at how you can store the URL of instance of the FLOW, which is running for a record, we will be storing the URL in that record itself. This will be handy when it comes to management of the FLOW
Creating Notebook Instance In Amazon SageMaker
Sep 07, 2021.
We learnt about Amazon SageMaker and Connecting AWS to Visual Studio Code in the previous articles, AWS SageMaker and How To Connect VS Code To AWS. In this article, we’ll learn to set up the notebook instance in Amazon SageMaker.
Class Vs Instance In C#
Jul 13, 2021.
This is the coding challenge of the HackerRank where we have to solve the particular problem statement using the class and instance of that class.
How To Create SQL Server Instance In The Managed Virtual Machine
Jun 14, 2021.
In this article, you will learn how to create SQL server instance in the managed virtual machine.
💻 Connect To EC2 Instance In Windows 10 Via SSH
Dec 23, 2020.
Connect to EC2 instance on Windows 10 via SSH using tools like PuTTY or OpenSSH. Generate and use key pairs for secure authentication, accessing your AWS resources directly from your Windows environment.
How To Create AWS EC2 Instance And Host .NET Application With IIS
Oct 12, 2020.
In this article, we will learn the process of creating an AWS EC2 instance with Windows Server to host a .NET Core application using IIS. It covers AWS basics, setting up an EC2 instance, configuring storage and security, enabling IIS, and managing the server.
Create Amazon Linux AMI EC2 Instance And Deploy NodeJS Application
Oct 08, 2020.
With this article, one should easily create an Amazon EC2 instance and deploy a nodeJS application and also learn how to install node modules directly on EC2 instance
How To Create AWS EC2 Instance And Host NodeJS Application With Nginx
Sep 28, 2020.
By the end of this article, you will be able to create an instance( Virtual machine) in AWS, connect to it, and host your Node.js Application. You will learn how easy it is to get your Node application up and running with AWS.
How To Create AWS EC2 Instance And Host PHP Applications
Sep 08, 2020.
By the end of this article, you will be able to create an AWS EC2 instance or Virtual Machine(VM) and you will be host PHP applications.
Static Instance Variable And Non-Static Instance Variable Difference - Java
Aug 06, 2020.
Let see the use of static keyword with the variable and the difference between the static variable and non-static variable in Java.
Create Virtual Machine Instance In Compute Engine In The Google Cloud Platform
Aug 05, 2020.
In this article, we will learn how to create VM Instances with Google Cloud Platform’s Computer Engine.
Playing With C# Strings Instance Methods
Nov 12, 2019.
String manipulation is one of the favorite subjects of developers when learning C#. In this article, we are going to focus on string instance methods. We might not cover every method, but most of the common ones will be tackled.
How To Launch A Windows Server Instance On Google Cloud Platform
Oct 18, 2019.
In this article, I’m going to describe how to Create a windows server and run a virtual machines through a Compute Engine on Google Cloud Infrastructure.
Creating Azure API Management Instance Service
Aug 14, 2019.
Azure API Management is very useful in providing REST API’s for performing operations such as on selected entities and in this article we will create an instance service and then we will import and publish API.
Host Your Sample App In AWS Instance Using EC2 Service
Jul 16, 2019.
This article will show you how you can host your sample application to EC2 Instance in AWS.
Setup Your EC2 Instance And RDS Using CloudFormation
Apr 01, 2019.
Learn how to Setup Your EC2 Instance And RDS Using CloudFormation.
Get to the Bottom of C# Object Reference Not Set to an Instance of an Object in Visual Studio
Nov 24, 2018.
Struggling to understand why you're receiving the C# error Object Reference Not Set to an Instance of an Object? Learn the basics of this issue in Visual Studio and uncover the potential solutions our comprehensive guide offers.
Creating Azure Container Instance - Step By Step Demo
Jul 03, 2018.
In this article, I am showing a step by step demo of how to create Azure Container Instances by using Microsoft Azure Command Line Interface.
Sync Up Our EC2 Instance With S3 Bucket
May 31, 2018.
Today, I will be showing how to sync up an EC2 instance with S3 bucket.
Deploy Multiple Instance Of SPFx Webpart In Same App Catalog
Apr 16, 2018.
As SharePoint Framework solutions are deployed as tenant-wide app packages, the client app package needs to deploy in the tenant app catalog. And all these instances of the web parts refer to the bundled JavaScript files from the CDN location specified in the package that is deployed in the app catalog. So, by following the software development lifecycle, it needs to have the ability to run Development, Staging and Production environments as different Site Collections in the same tenant.
To Execute the Workflow Instance through Power-Shell Script
Mar 20, 2017.
Steps To Create List Definition And List Instance In SharePoint 2013 Using Visual Studio
Sep 29, 2016.
In this article, you will learn how to create List Definition and List Instance in SharePoint 2013, using Visual Studio.
Azure Cloud Service - Scale Up Instance Size
Sep 13, 2016.
In this article, we will learn how to Scale up the instance size in Azure Cloud Service, using Visual Studio.
Throttling In WCF: Concurrent Instance and Session - Part Two
Jul 20, 2016.
In this article, you will learn about concurrent instance and session, using throttling in WCF.
SharePoint 2013: How to Start Workflow on a List Item Using Workflow Instance Service
May 01, 2016.
In this article you will learn how to start Workflow on a List Item using Workflow Instance Service in SharePoint 2013.
Copy Data From One Instance To Another Instance In SQL Server
Feb 25, 2016.
In this article you will learn how to copy data from one Instance to another instance in SQL Server.
Different Ways To Create Instance Of The WCF Service
Dec 04, 2015.
In this article you will learn different ways to create Instance of the WCF Service.
Elvis To Rescue From "Object Reference Not Set To An Instance Of An Object"
Oct 22, 2015.
The article is about using Elvis operator which is introduced in C# 6.0. It gives an example of how to use it.
Dynamically Create Instance of a Class at Runtime in C#
Mar 11, 2015.
This article explains how to create an instance of a class using the class name at runtime.
How to Uninstall a SQL Server Instance in SQL Server 2008R2 and 2008
Aug 05, 2014.
This article describes how to uninstall a SQL Server instance in SQL Server 2008R2 and 2008.
Changing SQL Server Instance Name Using a SQL Server Alias
Jul 11, 2014.
In this article I will explain how to change an instance name using a SQL Server alias.
Working With Instance and Static Data Members of a Class in C#
Jul 02, 2014.
This article explains instance and static data members of a class in C#.
Create Site Definition With List Instance in SharePoint 2013
Feb 05, 2014.
In this article I provide a practical example of creating a Site Definition with List Instance in SharePoint 2013.
3 Techniques For Instance Management in WCF
Sep 10, 2013.
Instance management basically defines the binding of service instance to a request received from a client.
Running Single Instance of the Application
Jul 08, 2012.
This article will show you how to do it using Mutex.
Single Instance Based - Instance Management in WCF hosted on Web App
Dec 20, 2011.
Today, in this article let dig out some theory stuff first and later we will try to implement the studied concepts i: e Per Single based Instance Management using WCF.
Per Session Based - Instance Management in WCF hosted on Web App
Dec 18, 2011.
Today, in this article let dig out some theory stuff first and later we will try to implement the studied concepts i:e Per Session based Instance Management using WCF.
Per Call Based - Instance Management in WCF hosted on Web App
Dec 18, 2011.
Today, in this article let dig out some theory stuff first and later we will try to implement the studied concepts i: e Per Call based Instance Management using WCF.
WCF Instance Management
Sep 14, 2011.
WCF Instance Management is the name for a set of techniques used by WCF to bind client requests to service instances, governing which service instance handles which client request. This is a service side implementation detail.
Windows Azure - Reimage a Running Role Instance of an ASP.Net Azure Web Application
Jul 13, 2011.
In this article we are going to see how to ReImage a running instance of an Azure application using the Windows Azure Management Portal
Windows Azure - Reboot a Running Role Instance of an ASP.Net Azure Web Application
Jul 13, 2011.
In this article we are going to see how to reboot a running instance of an ASP.Net Azure Web Application using the Windows Azure Management Portal
Advantage of [ServiceDependency] in WCSF - Instance Reuse
Apr 06, 2011.
Here we will see Advantage of [ServiceDependency] in WCSF - Instance Reuse.
How to: Execute only one instance of application concurrently
Sep 07, 2010.
There was a requirement that the application can’t run more than one instance, and if already running then show the message to the user and set that window as active. Here we will see how to do that.
3 Ways to Do WCF instance Management (Per call, Per session and Single)
Jun 07, 2010.
Many times we would like to control the way WCF service objects are instantiated on WCF server. You would like to control how long the WCF instances should be residing on the server.
Single Instance Of Application In C#
Mar 25, 2010.
There is some application that we want that only single instance of application works at a time. So here in this article is the logic for doing that.
Checking Previous Instance (Single Instance) Of An C# Windows Application, Also Setting MDI Child Form To A MDI Parent
Sep 04, 2008.
In this article I will describe how to check previous instance (single instance) of an C# windows application and also whether a MDI child is set to a MDI parent
Access the Same Instance of Internet Explorer Window
Jun 26, 2008.
This tip shows how to open an URL inside an Internet Explorer browser window from your C# application. Furthermore it shows how to update that specific window.
Creating an Instance of Internet Explorer in C#
Dec 19, 2002.
I was trying to write a program that opened an instance of Internet Explorer in a separate window, rather than use the Browser control that comes with the .NET platform.
Single Instance Control Component
Sep 23, 2002.
This article is on a single Instance control component which checks whether any instance of your application is running on the System.
What are AWS EC2 M8azn Instances?
Mar 20, 2026.
Unlock peak performance with AWS EC2 M8azn instances! Ideal for high-frequency workloads, low latency apps, and real-time processing. Boost speed & scalability.
How Do Reserved Instances Actually Save Money in Azure?
Jan 11, 2026.
Unlock Azure cost savings with Reserved Instances! Learn how they offer significant discounts by committing to predictable compute usage. Avoid common pitfalls & maximize ROI.
How Do I Right Size EC2 Instances to Save Money?
Jan 11, 2026.
How do you right size EC2 instances to save money? Learn how to use CloudWatch metrics, instance family selection, Auto Scaling, and gradual resizing to reduce AWS EC2 costs safely.
How Do Savings Plans and Reserved Instances Actually Save Money in AWS?
Jan 11, 2026.
Unlock AWS cost savings! Demystify Savings Plans & Reserved Instances. Learn how to reduce compute costs by committing to predictable usage. Avoid common pitfalls!
Overview of Web Server Deployment on an Amazon EC2 Instance
Dec 19, 2025.
Deploy a web server on Amazon EC2! This guide walks you through launching an EC2 instance, configuring network settings, and accessing your live web server. Perfect for beginners!
An Overview of EC2 Instances
Dec 11, 2025.
An Overview of EC2 Instances
How to Deploy Container to Azure Container Instances using Azure CLI?
Nov 26, 2025.
Deploy containers to Azure Container Instances (ACI) using Azure CLI. Learn to create resource groups, configure container settings, and verify your deployment. ACI simplifies container management without VMs.
Always Ready, Never Cold: How Pre-Warmed Instances Power Real-Time Enterprise Systems
Oct 16, 2025.
Discover how pre-warmed instances in Azure Functions eliminate cold starts and power real-time enterprise systems. Learn how to configure a Premium plan for sub-200ms latency, crucial for fraud detection, payment processing, and mission-critical applications. Explore best practices for optimal performance, cost efficiency, and secure VNET integration to guarantee immediate and reliable responses in the cloud.
Docker-in-Docker: Setup, Use Cases, and Benefits with Azure Container Instances
Mar 31, 2025.
Running Docker-in-Docker (DinD) on Azure enables isolated, scalable environments for testing, building, and deploying containerized applications using Azure Container Instances.
How to Create and Attach an Amazon EBS Volume to an EC2 Instance
Jan 22, 2025.
Amazon Elastic Block Store (EBS) provides scalable, high-performance block storage for EC2 instances in AWS. EBS volumes offer reliable, fault-tolerant, and persistent storage for data, databases, and applications.
How to Launch Your First EC2 Instance
Dec 20, 2024.
Launching your first AWS EC2 instance introduces you to cloud computing. It involves choosing an AMI, selecting instance types, configuring security groups, and setting up key pairs. Use the AWS Free Tier to start exploring virtual servers, storage options, and networking in the cloud.
PowerShell 7 - Create New PowerShell Instances
Oct 21, 2024.
Learn how to open fresh PowerShell sessions, automate workflows, and take advantage of cross-platform scripting. This guide covers step-by-step instructions for setting up and running new PowerShell instances.
Accessing Multiple Instances of the Same Field in Dynamics 365
Jun 30, 2024.
When working with forms in Dynamics 365, fields may appear in multiple places. By default, Xrm.Page.getControl("fieldname") returns the first instance of a field. To access other instances, use the control collection and specify the index.
Understanding Modern Cloud Solutions: App Service, Container Instances, Container Apps, and Kubernetes Service
Jun 02, 2024.
Understanding Modern Cloud Solutions" explores Azure services like App Service, Container Instances, Container Apps, and Kubernetes Service. Dive into containerization, orchestration, scalability, and DevOps practices for efficient deployment and management in the cloud.
Limiting Class Instances in C# with Private Constructor
Feb 06, 2024.
Control class instances in C# by using a counter and private constructor. Explore limiting class instances in C# with a private constructor and a counter variable. Control the instantiation and set a maximum limit for better class management and efficiency.
Navigating AWS EC2 Instances
Sep 05, 2023.
This article offers real-world examples, the best examples that empower you to become a proficient cloud practitioner while focusing on EC2 instance's role in your AWS Journey.
Exploring AWS EC2 Instances: Features, Deployment, and Hands-On Insights
Aug 23, 2023.
Explore AWS Article Collection: Unveil AWS EC2 Instances and More. Discover the versatility of virtual servers, from lifecycle management to load balancing. Embrace the cloud revolution and embark on an insightful journey.
Running SAP Applications with High-Performance and Reliability: Azure Virtual Instances for SAP Solutions
May 09, 2023.
Azure provides a range of virtual machine (VM) instances that are optimized for SAP workloads. These instances are designed to provide the best performance and availability for running SAP applications on Azure
Create, Deploy And Run A Dockerized .NET Core App On An Azure Container Instance
Feb 22, 2023.
In this tutorial, we will learn how to create dockerized asp.net core web api and we will learn to deploy and run it on Azure.
Understanding Internal/External IP Address in Google Cloud VM Instances And Working With Static IP Address
Jan 30, 2023.
In this article, we will understand difference between Internal and External IP address of VM instance. We would also learn how to create a static IP Address and assign it to VM Instance.
Deploy And Run .NET Core 7 Web API On Azure Container Registry And Container Instance
Dec 26, 2022.
In this article, you will learn how to deploy and Run .NET Core 7 Web API on Azure Container Registry and Container Instance
Create The Container Instances In Azure Portal
Nov 13, 2022.
In this article, you will learn how to create the container instances in azure portal