ISqlBuilderLoader.LoadByPageAsync(int currentIndex, int pageSize, params object[] parameters) Method

.NET Standard 2.x

Asynchronously retrieves data starting from a specified row by the built SQL statement.

Namespace: SnapObjects.Data

Assembly: SnapObjects.Data.dll

Syntax

public Task<ILoadable<TModel>> LoadByPageAsync(int currentIndex, int pageSize, params object[] parameters)

Parameters

currentIndex System.Int32

The zero-based index number of the first row.

pageSize System.Int32

The number of rows per page.

parameters System.Object[]

(Optional) One or more values that you want to use as retrieval arguments in the SQL SELECT statement.

Returns

Task<ILoadable<TModel>>

Returns a task that represents the asynchronous operation.

Examples

The following code example demonstrates how to use the LoadByPageAsync method.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Appeon.ApiDoc.Models.School;
using SnapObjects.Data;

namespace Appeon.ApiDoc.ISqlBuilderLoaderExamples
{
    public class LoadByPageAsyncExample
    {
        private readonly SchoolContext _context;
        private ISqlModelMapper mapper;
        
        public LoadByPageAsyncExample(SchoolContext dataContext)
        {
            // Sets the data context.
            _context = dataContext;
            mapper = _context.SqlModelMapper;
        }

        public async Task<int> Example1()
        {
            var builder = mapper.GetQueryBuilder<Person>();
            
            int count = (await builder.LoadByPageAsync(0, 30)).ToList().Count;
            
            Console.WriteLine("Count: {0}", count);
            
            return count;
            
            /*The code produces the following output:
             
                Count: 30
            */
            
        }
    }
}

Applies to

.NET Standard

2.x