Jan 31, 2018

ASP.NET MVC: Display Total and Avg in Table footer in Razor Views

There are various cases in which you may want to display results from aggregate functions (Sum, Avg, Count, Min, Max) performed over the columns in the grid in their footer. This post explains how to display aggregate functions in ASP.NET MVC Razor views.

Used Environment for this post: VS 2015 Update 3, ASP.NET MVC 5

For ASP.NET Web Forms, Read following post:
Displaying Total in ASP.NET Gridview Footer Row Without using Template Field

Jan 15, 2018

Azure Functions + Cognitive Services: Automate Image Moderation

Generally, User submitted images (profile pictures, social media posts, and business documents) are needed to be moderated to protect business and quality. If a large number of images are submitted in an application then manual moderation is time consuming and is not instantaneous. This post explains how to automate image moderation using Azure functions and Cognitive Services. Automated moderation applies machine learning and AI to cost-effectively moderate at scale, without human involvement.

Aug 15, 2016

Generalize a method to read any master table with C# and Dapper

On a web page or application form, it is common to have different master data like Country, State…etc. available in dropdownlist, listbox or any other control. It is needed to read all master data from database and bind to proper controls. This post explains different ways to read master tables with C# and Dapper.

Aug 15, 2016

ASP.NET Core Identity: Allow Login with either Email or Username

Do you want to allow user to login with either Username or Email address? ASP.NET Identity uses Username for Signin verification and In default Core template, Email is used as Username. In this post, we will change ASP.NET Core Identity setup to allow both Username and Email on login.

Assumptions:
1. Username is unique for each user. It is either input by user or generated by application on registration.
2. No @ symbol allowed in Username.

Jul 17, 2016

ASP.NET Core MVC: Enums with Select TagHelper

In this post, we will see how to use select tag helper in ASP.NET Core MVC and how to bind select tag helper to model data or enum values. The following environment is used for this post:

ASP.NET Core 1.0.1
Dapper 1.50.2
Visual Studio 2015 update 3

For the demo, let us assume we have following Department enum

Jul 17, 2016

PostgreSQL Enum, C# and Dapper

Error: column "Gender" is of type enum but expression is of type text.

Are you getting this error when you are using enum datatype in PostgreSQL database? This blog post explains how to fix the error with C# and Dapper. The following environment is used for this post:

Jul 16, 2016

ASP.NET Core Identity: Add Roles on Application Startup

In ASP.NET Core application, you want to seed roles and users in the database. This post explains how to add Roles on application startup using ASP.NET Core Identity. It is written in following environment:

ASP.NET Core 1.0.1
Postgresql 9.5.4 database
Npgsql 3.1.9
Dapper 1.50.2
Visual Studio 2015 update 3
Identity.Dapper

Apr 10, 2016

Visual Studio Code: Setting Environment Variable for Tasks

Visual Studio Code (VSCode) is a lightweight, open-source code editor and available on Linux, Mac OSX, and Windows. One of the key features of Visual Studio Code is its great debugging support for Node.js (JavaScript and TypeScript) and another feature is to run Tasks(Grunt, Gulp, MSBuild…etc.) from the IDE. If you are new to VSCode, I would recommend to see following video which shows how to debug Node.js app, put break-point and use watch window, use environment variable in Visual Studio Code editor:

Mar 22, 2016

How to display SSRS Report in ASP.NET MVC Application

Today, we will explain how to show SSRS reports in ASP.NET MVC application. Suppose you already created awesome SSRS reports and want to use MVC as Report viewing application. Here is your solution.
Open existing application or create new MVC application. You can install reporting package from NuGet.
Go to Tools -> Library Package Manager -> click on Package Manager Console and type following command into command window.

Jan 7, 2016

Installing Linux, Apache, MySQL, PHP (LAMP) Stack on Ubuntu 14.04

I was working to setup development environment of this website on Ubuntu 14.04 virtual machine. So decided to write a post on it. This post explains how to install LAMP stack (Linux, Apache, MySQL and PHP) on Ubuntu 14.04.

Installation:

Run following commands:

sudo apt-get update
sudo apt-get install apache2 php5 libapache2-mod-php5 mysql-server libapache2-mod-auth-mysql php5-mysql phpmyadmin