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Showing posts from July 17, 2023

Ref Vs Out Keyword

                                                 Ref Vs Out Keyword Ref vs Out Keyword in C#     Ref-      1)R ef parameter should have the same value.      2)Ref keyword is used to pass an argument as a reference     3) No Need to initialize out parameter before passing it.             Eg:=int a;      4) Out parameter must be initialized before returning.   Out -       1)O ut parameters are not required to have value      2)Out keyword is also used to pass an argument like ref keyword      3)Must initialize Ref parameter else error.          Eg:=int b=5;        4) Ref parameter  initialized not necessary. When t...
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String Program in C#

using System; using System.Linq; 1)Reverse Name String  in C# String Name="Sudam"; int Len=Name.Length-1; while(Len>=0) { Console.Write(Name[Len]); Len--; } ----------------------------------------- Output --madus ----------------------------------------- 2)Reverse Words of a String in C# string s = "I Name Is Sudam"; string[] a = s.Split(' '); int temp= a.Length - 1; while (temp >= 0) {     Console.Write(a[temp] + ' ');     temp--; } ------------------------------------------ Output --Sudam Is Name I ---------------------------------------- 3) How to Fine count how many double letters are in a string? int doubleLetters = 0; string characters = "Hello"; for (int i = 0; i < characters.Length - 1; i++) {     if (characters[i] == characters[i + 1])     {         doubleLetters++;         i++;     }     Console.WriteLine(doubleLetters); } -----------------------------------------...
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CSV using XmlNode

 To create a CSV from an XmlNode in C#, you can follow these steps: 1. Parse the XML structure using XmlNode. 2. Extract the data you need from child nodes. 3. Write the CSV content using a StringBuilder or directly with StreamWriter. Here's a sample code snippet: using System; using System.IO; using System.Text; using System.Xml; public class XmlToCsvConverter {     public static void ConvertXmlNodeToCsv(XmlNode rootNode, string csvFilePath)     {         StringBuilder csvContent = new StringBuilder();         // Assuming all child nodes have the same structure         // Add header         if (rootNode.HasChildNodes)         {             XmlNode firstRow = rootNode.FirstChild;             for (int i = 0; i < firstRow.ChildNodes.Count; i++)             {     ...
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Controller_Model. cs

Controller using Microsoft.AspNetCore.Http; using Microsoft.AspNetCore.Mvc; using NZWalks.API.Helper; using NZWalks.API.Models; using System.Net; namespace NZWalks.API.Controllers {     [ApiController]     [Route("api/[controller]")]     public class ConnectionController : ControllerBase     {         private readonly IConfiguration _configuration;         public ConnectionController(IConfiguration configuration)         {             _configuration = configuration;         }         [HttpGet("validate")]         public IActionResult ValidateAllConnections()         {             var hostname = Dns.GetHostName();             var connectionStrings = new List<ConnectionItem>();           ...
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