Friday, May 25, 2018

Passing Data in an MVC Application (ViewBag, ViewData, and TempData)

Maintaining the state of a Web application is very important when passing the data between multiple requests. In an ASP.NET application, we use different techniques or ways to pass the data from one page to other. ASP.NET provides Session, ViewState, QueryString, Cross Page Posting, and so forth. Most of the time, developers find difficulties understanding and using ViewData, ViewBag, and TempData in an ASP.NET MVC application. In this article, I will explain ViewData, ViewBag, and TempData with examples, and show you how to pass data in an MVC application in different scenarios.

Understanding Action Filters in ASP.NET MVC

To understand MVC Action Filters, we have to know how ASP.NET MVC routing works. When a user types an ASP.NET MVC application URL in the browser, it lands at the UrlRoutingModule. The routing module parses the requested URL and then invokes the corresponding controller and action. Finally, the controller renders the appropriate view and the response is sent to the user. Now assume, a developer wants to inject some additional processing logic which could be reused across multiple controllers and actions in the request response life cycle. MVC custom filters allow developers to inject additional processing logic in the request-response life cycle.

Team Project Using Visual Studio Team Services

Microsoft Visual Studio Team Services (VSTS) is a Cloud-based platform that provides an integrated, collaborative environment that supports Git, Team Foundation Version Control (TFVC), Agile Tools, Continuous Integration, Tools for Java, Reporting, Release Management, Package Management, DevOps, Testing Tools, and many more. Because VSTS services are available on the Cloud, that easily can be used by teams that are distributed across different geographical locations.

Mocking API Responses in Azure API Management Portal

A mock API imitates a real API call by providing a realistic JSON or XML response to the requester. Mock APIs can be designed on a developer...