ASP.NET Core Tutorial – Full Auction App
Updated: February 24, 2025
Summary
This tutorial demonstrates how to create an auction web application from scratch, allowing users to list items, place bids, and add comments. It covers building models for listings, bids, and comments, setting up the database, implementing user authentication, and enhancing user experience with features like pagination and search. Specific functionalities such as adding and closing bids, managing comments, and displaying personalized bid data are explained in detail to help viewers create a comprehensive auction platform.
TABLE OF CONTENTS
Building Auction Web Application
Learn how to build an auction web application where users can create listings and place bids. Features include adding comments, pagination, and uploading images.
Creating Models
Create models for the project, such as Listing, Bid, and Comment, with necessary properties to facilitate the auction functionality.
Database Connection
Set up the database connection using Entity Framework and SQL Server Management Studio, including creating a new database.
Handling Data in Controllers
Implement methods in controllers to interact with the database, retrieve data, and handle interactions between views and models.
Designing the Frontend
Design the index view page using HTML and CSS, including styling for listings, images, and bid submission forms.
Managing User Authentication
Implement user authentication and authorization, allowing users to log in, create listings, place bids, and view only their own data.
Implementing Additional Features
Add features like pagination, search functionality, and navigation menu to enhance user experience and improve site navigation.
Implementing Bidding Functionality
In this section, the process of implementing bidding functionality, including adding and closing bids, is discussed. Methods in the controller for these functionalities are created, along with the form for adding a bid.
Creating Bids Service
A service for managing bids is created, and the process of adding bids to the database is detailed. The creation of a method for saving changes in the context is explained.
Closing Bidding
The procedure for closing bidding is outlined, where the bidding can only be closed by the user who posted the listing. The method for closing the bidding and updating the listing status is demonstrated.
Adding Comments
The implementation of adding comments is described, along with creating a comment service to interact with the database. The functionality of adding comments to listings is illustrated.
Displaying Specific Listings
The process of displaying specific listings that the user has bid on is explained. Methods in the controller and service for retrieving bid data from the database are created.
FAQ
Q: What are some features of the auction web application discussed in the file?
A: Features include adding comments, pagination, uploading images, user authentication and authorization, search functionality, and navigation menu.
Q: What models are created for the project to facilitate the auction functionality?
A: Models such as Listing, Bid, and Comment are created with necessary properties.
Q: How is the database connection set up in the project?
A: The database connection is set up using Entity Framework and SQL Server Management Studio, including creating a new database.
Q: What methods are implemented in the controllers to interact with the database?
A: Methods are implemented to retrieve data, handle interactions between views and models, manage bids, and save changes in the context.
Q: Explain the process of adding and closing bids in the auction web application.
A: The process includes creating methods in the controller, adding a bid form, managing bids with a service, and closing bidding by the user who posted the listing.
Q: How is user authentication and authorization handled in the project?
A: User authentication and authorization are implemented to allow users to log in, create listings, place bids, and view only their own data.
Q: What is the functionality of adding comments to listings?
A: The functionality involves creating comments, a comment service to interact with the database, and adding comments to listings.
Q: What enhancements are made to improve user experience and site navigation in the web application?
A: Features such as pagination, search functionality, and a navigation menu are added to enhance user experience and improve site navigation.
Q: How is specific bid data retrieved from the database for display?
A: Methods in the controller and service are created for retrieving bid data from the database.
Q: Explain the procedure for closing bidding and updating the listing status.
A: The procedure involves creating a method for closing the bidding and updating the listing status, allowing only the user who posted the listing to close the bidding.
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