IQueryAndOrBuilder<TModel>.AndWhere(ISqlWhereCondition condition) Method

.NET Standard 2.x

Adds the AND logical operator and a search condition (specified by an ISqlWhereCondition object) to the WHERE clause.

Namespace: SnapObjects.Data

Assembly: SnapObjects.Data.dll

Syntax

  IQueryAndOrBuilder<TModel> AndWhere(ISqlWhereCondition condition);

Parameters

condition SnapObjects.Data.ISqlWhereCondition

An ISqlWhereCondition which represents a search condition in the WHERE Clause.

This object can be created by using the SqlBuilder.Where method and so on.

Returns

IQueryAndOrBuilder<TModel>

Returns anIQueryAndOrBuilder<TModel> object which can be used to add more search conditions to the current WHERE clause.

Examples

The following code example demonstrates how to use the AndWhere method to add an AND condition to the WHERE clause. In this example, the AND condition is specified by the variable for another WHERE clause.

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

namespace Appeon.ApiDoc.IQueryAndOrBuilderExamples
{
    public class AndWhereExample
    {
        private SchoolContext _context;
        
        public AndWhereExample(SchoolContext dataContext)
        {
            // Sets Data Context
            _context = dataContext;
        }

        public async Task<int> Example7()
        {
            // Get a QueryBuilder.
            var Builder = _context.SqlModelMapper.GetQueryBuilder<Person>();
            
            // Defines a SqlWhereCondition.
            var sqlwherebuilder = SqlBuilder.Where("PersonID", SqlBinaryOperator.GreaterThan,
                                    SqlBuilder.Parameter<int>("id"));
            var sqlwherebuilder2 = SqlBuilder.Where("PersonID", SqlBinaryOperator.LessThan,
                                    SqlBuilder.Parameter<int>("id2"));
                                    
            Builder.Where(sqlwherebuilder)
                   .AndWhere(sqlwherebuilder2);
            
            var result = (await Builder.LoadAsync(4, 6)).ToList();
            
            foreach (var person in result)
            {
                Console.WriteLine("PersonID:    {0}", person.PersonID);
                Console.WriteLine("FirstName:   {0}", person.FirstName);
                Console.WriteLine("LastName:    {0}", person.LastName);
                Console.WriteLine("HireDate:    {0}", person.HireDate);
                Console.WriteLine("Discriminator:   {0}", person.Discriminator);
            }
            
            return result.Count;
            
            /*This code produces the following output:
            
                PersonID:    5
                FirstName:   Roger
                LastName:    Harui
                HireDate:    7/1/1998 12:00:00 AM
                Discriminator:   Instructor
            */
        }
    }
}

Example Refer To

Model Class: Person

Applies to

.NET Standard

2.x