IModelEntry<TModel> Interface

.NET Standard 2.x | Current Version (1.0.1)

0.5.0-alpha 1.0.1 (current)

Represents a object that contains the data of the TModel object and the state of the data.

It provides methods, properties, and events for accessing and manipulating the data and state.

Namespace: SnapObjects.Data

Assembly: SnapObjects.Data.dll

Inheritance Constructor

SnapObjects.Data.IModelEntry

Syntax

   public interface IModelEntry<TModel>;

Examples

The following code example demonstrates how to use IModelEntry to get and set details for a student record which contains data and state.

using Appeon.ApiDoc.Models.School;
using SnapObjects.Data;
using System;

namespace Appeon.ApiDoc.IModelEntryExamples
{
    public class IModelEntryExample
    {
        private SchoolContext _context;

        public IModelEntryExample(SchoolContext dataContext)
        {
            // Sets the data context.
            _context = dataContext;
        }

        public void Example(IModelEntry<Person> student)
        {
            // Gets the model state.
            Console.WriteLine("Model State: {0}",
                 student.ModelState.ToString());

            // Gets the properties.
            Console.WriteLine("Properties:");
            foreach (var propertyName in student.Properties)
            {
                Console.WriteLine(propertyName);
            }

            // Gets the property state of Enrollment Date.
            Console.WriteLine("Enrollment Date State: {0}",
                student.GetPropertyState("EnrollmentDate").ToString());

            // Gets the current value of Enrollment Date.
            Console.WriteLine("Current Enrollment Date: {0}",
                 student.GetCurrentValue("EnrollmentDate"));

            // Gets the original value of Enrollment Date.
            Console.WriteLine("Original Enrollment Date: {0}",
                 student.GetOriginalValue("EnrollmentDate"));

            student.CurrentValueChanged += showValueChanges;

            // Sets Enrollment Date with a new value.
            student.SetCurrentValue("Enrollment Date", new DateTime(2019, 1, 3));

            /* The code produces the following output:
            
            Model State: Modified
            Properties:
            PersonID
            LastName
            FirstName
            HireDate
            EnrollmentDate
            Discriminator
            Enrollment Date State: Modified
            Current Enrollment Date: 1/2/2019 12:00:00 AM
            Original Enrollment Date: 1/1/2019 12:00:00 AM
            EnrollmentDate Changed to 1/3/2019 12:00:00 AM
            */
        }

        private void showValueChanges(string name, object value)
        {
            Console.WriteLine("{0} changed to {1}",
                name, value);
        }
    }
}

Example Refer To

Model Class: Student
Controller Class: IModelEntryExampleController