ASP.NET

accts.Add(acct);
Session["acctObjects"] = accts;

if (Session["acctObjects"] != null)
    accts = (List<acct>)Session["acctObjects"];
accts.Add(acct);
Session["acctObjects"] = accts;

if (Session["acctObjects"] != null)
    accts = (List<acct>)Session["acctObjects"];
else
    accts = new  List<acct>();

accts.Add(acct);
Session["acctObjects"] = accts;

const string AcctObjectsSessionKey = "acctObjects";
...
accts = (List<acct>)Session[AcctObjectsSessionKey] ?? new List<acct>();
accts.Add(acct);
Session[AcctObjectsSessionKey] = accts;

Hi Helgard W,

To create a scheduler application in ASP.NET, you can use various libraries and techniques available in the .NET ecosystem. I can provide you with some guidance to get started.

ASP.NET WebForms vs. ASP.NET MVC:
First, decide whether you want to develop the application using ASP.NET WebForms or ASP.NET MVC. WebForms provides a more event-driven model, while MVC offers a more structured and testable approach. Both can be used to create a scheduler application, so choose the one that suits your requirements and familiarity.

Database Setup:
You will need a database to store the scheduled meetings and user information. You can use SQL Server or another database of your choice. Set up the necessary tables to store meetings, users, and permissions.

User Registration and Authentication:
Implement user registration and authentication functionality so that users can create accounts and log in to the application. ASP.NET provides built-in features like Membership or newer ASP.NET Identity for this purpose.

Scheduler Interface:
Create a user interface that allows users to schedule meetings. You can use ASP.NET controls or client-side libraries like jQuery or React to build an interactive interface. When a user schedules a meeting, store the meeting details in the database.

Meeting Display:
Implement a page or pages that display the scheduled meetings to the users with appropriate permissions. Retrieve the meeting data from the database and present it in a user-friendly manner. You can use ASP.NET controls or client-side frameworks like Angular or Vue.js for this.

Permissions and Security:
Implement a permission system to control who can view and schedule meetings. You can assign roles or permissions to users and check these permissions before displaying or modifying meeting data.

Notifications:
Consider adding email notifications to notify participants about scheduled meetings or any updates. You can use libraries like SendGrid or SMTP to send emails from your ASP.NET application.

Testing and Deployment:
Test your application thoroughly to ensure it functions as expected. Once testing is complete, deploy the application to a web server or hosting environment.

If you are planning to develop android mobile applications within visual studio, then you can start within the ASP.NET project template. But, if you want to go simple like Java, then C# is another good option. C# is somewhat similar to Java.