IEmbeddedLoadable.IncludeAll(bool cascade = false) Method

.NET Standard 2.x

Loads data for the embedded properties in TModel for all rows.

If the ModelEmbedded attribute is applied in the property, the property will use the SQL query (defined in the detail model class specified by the ModelType property of the ModelEmbedded attribute) to retrieve data from database. The cascade parameter can be used to decide whether to retrieve data for the embedded properties in the detail model or the granddetail model.

Namespace: SnapObjects.Data

Assembly: SnapObjects.Data.dll

Syntax

  IEmbeddedLoadable<TModel> IncludeAll(bool cascade = false);

Parameters

cascade System.Boolean

Only when the ModelEmbedded attribute is applied in the property, the cascade parameter can be used to decide whether to retrieve data for the embedded properties in the detail model or the granddetail model. See master-detail-granddetail for more info.

The default value is false.

Returns

SnapObjects.Data.IEmbeddedLoadable<TModel>

Returns an IEmbeddedLoadable<TModel> object whose methods can be used to further obtain the data result set or perform data operations such as embedded queries.

Examples

The following code example demonstrates how to load students and online flag that belong to the Poetry course.

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

namespace Appeon.ApiDoc.IEmbeddedLoadableExamples
{
    public class IncludeAllExample
    {
        private SchoolContext _context;

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

        public void Example()
        {
            var mapper = _context.SqlModelMapper;

            // Loads the course of Poetry (Course ID = 2030).
            var course = mapper.LoadByKey<CourseInfo>(2030).FirstOrDefault();

            // Loads students and online flag.
            mapper.LoadEmbedded(course).IncludeAll();

            Console.WriteLine("Students who have selected the course of {0}:",
               course.Title);

            // Students.
            Console.WriteLine();
            foreach (CourseStudentInfo student in course.Students)
            {
                Console.WriteLine("Course ID is {0}.",
                    student.CourseID);
                Console.WriteLine("Student ID is {0}.",
                    student.StudentID);
            }

            // Online flag.
            Console.WriteLine();
            if (course.OnlineFlag == 1)
            {
                Console.WriteLine("Online flag is True.");
            }
            else
            {
                Console.WriteLine("Online flag is False.");
            }

            /*The code produces the following output is
            
            Students who have selected the course of Poetry:

            Course ID is 2030.
            Student ID is 2.
            Course ID is 2030.
            Student ID is 3.

            Online flag is True.
            */
        }
    }
}

Applies to

.NET Standard

2.x