IMetaList<TDwo>.Exists(string name) Method

.NET Standard 2.x

Determines whether the list contains the element.

Namespace: DWNet.Data

Assembly: DWNet.Data.dll

Syntax

bool Exists(string name);

Parameters

name System.String

The name of the element to search for.

Examples

The following code example demonstrates how to use the Exists Method.

using DWNet.Data;
using System;

namespace Appeon.ApiDoc.IMetaListExamples
{
    public class ExistsExample
    {
        private readonly SchoolContext _context;

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

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

            datastore.Retrieve();
			
			// Gets the properties of the Columns.
            var columnMetas = datastore.DwMeta.Columns;
            Console.WriteLine("Columns Count: {0}", columnMetas.Count);

            // Determines if a column named Departmentid exists
            bool result = columnMetas.Exists("Departmentid");
            Console.WriteLine("Result: {0}", result);

            // Determines if a column named DepartmentName exists
            result = columnMetas.Exists("DepartmentName");
            Console.WriteLine("Result: {0}", result);

            /*This code produces the following output:
            
            Columns Count: 5
            Result: true
            Result: false
            */
        }
    }
}

Example Refer To

Model Class: D_Department
DataWindow File: d_department

Applies to

.NET Standard

2.x