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.select() in c#

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Centric Printing answered on November 17, 2022 Popularity 9/10 Helpfulness 2/10

answer .select() in c#

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.select() in c#

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//First import LINQ
using System.Linq;

//Used to transform all elements in a list.
int[] arr = [1, 3, 5, 6];
int y = 3;
arr.Select(x => x * y).ToArray();
//used .ToArray() to copy it back into the original array.
//arr now equals [3, 9, 15, 18];
//Learn more by looking into LINQ; worth it if you have never heard of it.

Popularity 9/10 Helpfulness 2/10 Language csharp

Source: Grepper

Tags: c#

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Contributed on Nov 17 2022

Centric Printing

0 Answers Avg Quality 2/10

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static void HasRows(SqlConnection connection)
{
    using (connection)
    {
        SqlCommand command = new SqlCommand(
          "SELECT CategoryID, CategoryName FROM Categories;",
          connection);
        connection.Open();

        SqlDataReader reader = command.ExecuteReader();

        if (reader.HasRows)
        {
            while (reader.Read())
            {
                Console.WriteLine("{0}\t{1}", reader.GetInt32(0),
                    reader.GetString(1));
            }
        }
        else
        {
            Console.WriteLine("No rows found.");
        }
        reader.Close();
    }
}

Popularity 7/10 Helpfulness 3/10 Language csharp

Source: Grepper

Tags: c# select

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Contributed on Dec 26 2022

dr4ft

0 Answers Avg Quality 2/10

select c#

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using System.Linq; // Make 'Select' extension available
...
var ages = people.Select(person => person.Age).ToArray();

Popularity 9/10 Helpfulness 2/10 Language csharp

Source: stackoverflow.com

Tags: c# select sele

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Contributed on Nov 27 2022

eliud onyango

0 Answers Avg Quality 2/10

select in c#

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using System;
using System.Data;
using System.Data.SqlClient;

namespace YourNamespace
{
    class Program
    {
        static void Main(string[] args)
        {
            string connectionString = "Your_Connection_String"; // Replace with your actual database connection string

            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                connection.Open();

                string query = "SELECT * FROM YourTable"; // Replace "YourTable" with the actual name of your table

                using (SqlCommand command = new SqlCommand(query, connection))
                {
                    SqlDataReader reader = command.ExecuteReader();

                    while (reader.Read())
                    {
                        // Retrieve data from each row
                        int id = (int)reader["ID"];
                        string name = (string)reader["Name"];
                        // ...

                        // Process the retrieved data as needed
                        Console.WriteLine($"ID: {id}, Name: {name}");
                    }

                    reader.Close();
                }
            }

            Console.ReadLine();
        }
    }
}

Popularity 8/10 Helpfulness 1/10 Language csharp

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Contributed on Sep 12 2023

YOU.com

0 Answers Avg Quality 2/10

.select() in c#

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