ASP.NET Razor - How to create a POST form for List of objects?

user_17125688 0
Viewed 153

I need to create a POST form to add new objects to database. I have to create a Razor page where I can add new lesson form on click of a button. And after it on click of another button all the lessons should be added to DB context. I still don't know how to do it so I want you to help me

 public class Course
{
    public Guid Id { get; set; }
    public string Category { get; set; }
    public string Title{ get; set; }
    public List<Lesson> Lessons { get; set; } = new List<Lesson>();
}
public class Lesson
{
    public Guid Id { get; set; }
    public string Title { get; set; }
    public string Text { get; set; }
}

Here is some image of what I mean: enter image description here

DB has a Course table and a Lesson table. Please tell me how I can create a page to create new 'Course' with dynamic amount of 'Lessons'

razor-pages asp.net-core razor asp.net-mvc asp.net
1 Answers

Please try with this in your controller method you need to pass from the page.

public ActionResult PostMethod(Course course, FormCollection formCollection)
{
    string title = course.Title; // Title value
    string category = course.Category; // Category value
    //add course into database
    if (course.Lessons != null && course.Lessons.Count > 0)
    {
        foreach (var item in course.Lessons)
        {
            //add Lessons into database
        }
    }
}

Please note in this example you are going to perform many operations in databases you have to manage transaction as well for this.

Using Transactions or SaveChanges(false) and AcceptAllChanges()?

user_58558840
Related