IDataStore.Max<TModel, TResult>(Func<TModel, TResult> selector) Method

.NET Standard 2.x

Invokes a transform function on each row of the primary buffer in the DataStore and returns the maximum result value.

Namespace: DWNet.Data

Assembly: DWNet.Data.dll

Syntax

  public TResult Max<TModel, TResult>(Func<TModel, TResult> selector);

Type Parameters

TModel

The type of a model class that matches with the current DataObject.

TResult

The type of the value returned by selector.

Parameters

selector System.Func<TModel,TResult>

A transform function to apply to each row.

Returns

TResult

The maximum value.

Examples

The following code example demonstrates how to get the maximum value for budget from the Department table.

using Appeon.ApiDoc.Models;
using DWNet.Data;
using System;

namespace Appeon.ApiDoc.IDataStoreExamples
{
    public class MaxExample
    {
        private readonly SchoolContext _context;

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

        public void Example1()
        {
            // Instantiates a DataStore object with datawindow: d_department.
            var datastore = new DataStore("d_department", _context);

            datastore.Retrieve();

            // Gets the maximum value for budget.
            // The largest budget is 350000.00
            decimal maxBudget = datastore.Max<D_Department, decimal>
                (d => d.Budget);

            Console.WriteLine("Max Budget: {0}",
                               maxBudget);

            /*This code produces the following output:
             
            Max Budget: 350000.0000
            */
        }
    }
}

Example Refer To

Model Class: D_Department
DataWindow File: d_department

Applies to

.NET Standard

2.x