All posts by Ravi Ranjan Kumar

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SQL SERVER – How to Fix Error : ‘System.OutOfMemoryException’ was thrown. (mscorlib) while executing script

In this article, we will learn how to solve System.OutOfMemoryException error while executing scripts in SQL Server Management Studio. Issue : It is ok to execute average size of the script using SQL Server Management Studio but If you want to execute a large SQL

SQL SERVER – How to Fix Error : Database diagram support objects cannot be installed

What is a Database Diagram Support in SQL SERVER SQL Server management studio(Any versions) allows you to create Database Diagrams to use graphically and show the complete structure of the database. Additionally, you can create and modify tables, columns, relationships, Indexes and constraints there. Error: Database

How to solve SSL/TLS validation error while making connection in C#

In this article, you will learn how to deal with SSL/TLS validation error using C#. If you are trying to establish a connection with a web server using c# and getting an exception as given below : SocketException: An existing connection was forcibly closed by

RabbitMQ with C#

In this article, you will learn how to write a basic program using RabbitMQ and C# like how to create connections, how to publish a message in the queue and how to receive that message from a queue. Before writing code, I assume you have

JWT Authentication with ASP.NET WEB API

In this article, we will learn how to authenticate ASP.NET WEB API using JSON Web Token(JWT). If you are new to JWT then I would like to request you to please go through with our article which briefly explains A Basic Introduction to JSON Web

A Basic Introduction to JSON Web Token(JWT)

In this article, you will learn the basic fundamental of JWT like how it works, what is JWT, what is the structure of JWT. If you would like to implement JWT based authentication in your API, you can either use one of the existing open

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How to use FileUpload control inside ASP.Net AJAX Update Panel

There are plenty of questions asked by developers around the globe that they are not able to use FileUpload control inside ASP.Net Ajax update panel. Their issues are FileUpload control inside Asp.Net Ajax update panel doesn’t hold any file and also return false for

Upload and Download File from Database using ASP.Net Web API

This article will guide you how to upload a file in the database and download it from the database(SQL Server) using ASP.Net Web API and Entity Framework. To consume Web API you can simply use JQuery Ajax. Create a Table in the Database First, you

Validating UIDAI Aadhaar number using Verhoeff Algorithm

If you are working on such application where you have to authenticate Aadhaar number entered by the user you may want to validate it using any standard algorithm before sending it to UIDAI server to get auth response. Before learning how to write code using Verhoeff


C# ConcurrentDictionary with Examples

In the previous blog C# Dictionary with Examples, we have learned about C# Dictionary and how to use it for different purposes like Initialization, adding values, reading values, etc. In this article, we are going to learn about ConcurrentDictionary and how to use it for different purposes.