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    IQueryWhereBuilder.WhereValue(string left, object value) Method

    .NET Standard 2.x

    Creates a WHERE clause, and adds a search condition to the WHERE clause. Specifies a SQL expression on the left of the operator and a specific value on the right of the operator. The operator is '='.

    Namespace: SnapObjects.Data

    Assembly: SnapObjects.Data.dll

    Syntax

      IQueryAndOrBuilder<TModel> WhereValue(string left, object value)
    

    Parameters

    left System.String

    An expression on the left of the operator.

    value System.Object

    A specific value on the right of the operator.

    Returns

    IQueryAndOrBuilder<TModel>

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

    Examples

    The following code example uses the WhereValue method to specify that data retrieved from the "Department" table must have "Economics" as its Name value.

    using Appeon.ApiDoc.Models.School;
    using SnapObjects.Data;
    using System;
    using System.Threading.Tasks;
    
    namespace Appeon.ApiDoc.IQueryWhereBuilderExamples
    {
        public class WhereValueExample
        {
            private SchoolContext _context;
            
            public WhereValueExample(SchoolContext dataContext)
            {
                // Sets Data Context
                _context = dataContext;
            }
    
            public async Task<int> Example1()
            {
                // Get a QueryBuilder.
                var Builder = _context.SqlModelMapper.GetQueryBuilder<Department>();
                
                // Creates a WHERE clause, and adds a search condition to the WHERE clause. 
                // Specifies a SQL expression on the left of the operator and a specific
                // value on the right of the operator. The operator is '='.
                Builder.WhereValue("Name", "Economics");
                
                var result = (await Builder.LoadAsync()).FirstOrDefault();
                
                Console.WriteLine("DepartmentID:    {0}", result.DepartmentID);
                Console.WriteLine("Name:            {0}", result.Name);
                Console.WriteLine("Budget:          {0}", result.Budget);
                Console.WriteLine("Administrator:   {0}", result.Administrator);
                Console.WriteLine("StartDate:       {0}", result.StartDate);
                
                return result.DepartmentID;
                
                
                /*This code example produces the following output:   
                
                    DepartmentID:    4
                    Name:            Economics
                    Budget:          200000.0000
                    Administrator:   4
                    StartDate:       9/1/2007 12:00:00 AM
                */
            }
        }
    }
    

    Example Refer To

    Model Class: Department

    Applies to

    .NET Standard

    2.x

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