IQueryAndOrBuilder<TModel>.AndWhereValue(string left, SqlBinaryOperator sqlOperator, object value) Method

.NET Standard 2.x

Adds the AND logical operator and a search condition to the WHERE clause; and specifies a SQL expression on the left of the operator and a specific value on the right of the operator.

Namespace: SnapObjects.Data

Assembly: SnapObjects.Data.dll

Syntax

  TIQueryAndOrBuilder<TModel> AndWhereValue(string left, SqlBinaryOperator sqlOperator, object value);

Parameters

left System.String

An expression on the left of the operator.

SqlBinaryOperator SnapObjects.Data.SqlBinaryOperator

An enumeration value of SqlBinaryOperator, which is the operator to test the expression on the left and the value on the right.

value System.Object

The specific value on the right of the operator.

Returns

IQueryAndOrBuilder<TModel>

Returns anTIQueryAndOrBuilder<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 AndWhereValue method to add an AND condition to the WHERE clause. In this example, the AND condition using the operator "=" to specifies that the DepartmentID value must be equal to 4.

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

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

        public async Task<int> Example2()
        {
            // Get a QueryBuilder.
            var Builder = _context.SqlModelMapper.GetQueryBuilder<Department>();
            
            Builder.WhereValue("Name", SqlBinaryOperator.NotEquals, "Economics")
                   .AndWhereValue("DepartmentID", SqlBinaryOperator.NotEquals, 1);
                   
            var result = (await Builder.LoadAsync()).ToList();
            
            foreach (var dept in result) 
            {
                Console.WriteLine("DepartmentID:    {0}", dept.DepartmentID);
                Console.WriteLine("Name:            {0}", dept.Name);
                Console.WriteLine();
            }
            
            return result.Count;
            
            /*This code example produces the following output:   
                
                DepartmentID:    2
                Name:            English
                
                DepartmentID:    7
                Name:            Mathematics
                
                DepartmentID:    10
                Name:            New Department
            */
        }
    }
}

Example Refer To

Model Class: Department

Applies to

.NET Standard

2.x