I can't get value of base class field from child class object in c#

Question

using System; public class Program { public static void Main() CloudCollectionHelper cloudHelper = new CloudCollectionHelper(); SlackHelper slackHelper = new SlackHelper(); cloudHelper.DatabaseID=12345; Console.WriteLine(slackHelper.GetSlackPageTokens()); } class CloudCollectionHelper { public long DatabaseID { get; set; } } class SlackHelper:CloudCollectionHelper { public long GetSlackPageTokens() { return DatabaseID; } } } current output: 0 Expected Output: 12345 I need output 12345 because DatabaseID from the cloudhelper so i need that databaseID in the slackhelper. this is my c# online compiler: https://dotnetfiddle.net/QNQeEX I dont want to write something below because I have 1000+ field in the cloudhelper SlackHelper slackHelper = new SlackHelper(); slackHelper.DatabaseID=12345; Console.WriteLine(slackHelper.GetSlackPageTokens()); Thanks in advance.

Sachin Singh · Answer

your code should be like below public static void Main() { SlackHelper sh = new SlackHelper(); Console.WriteLine(sh.GetSlackPageTokens()); Console.ReadLine(); } public class CloudCollectionHelper { public long DatabaseID { get; set; } } public class SlackHelper:CloudCollectionHelper { public long GetSlackPageTokens() { DatabaseID = 12345; return DatabaseID; } }

Mageshwaran R · Answer

Hi Talaviya, Try this code: class Vehicle // base class (parent) { public string brand = "Ford" ; // Vehicle field public void honk() // Vehicle method { Console.WriteLine( "Tuut, tuut!" ); } } class Car : Vehicle // derived class (child) { public string modelName = "Mustang" ; // Car field } class Program { static void Main( string [] args) { // Create a myCar object Car myCar = new Car(); // Call the honk() method (From the Vehicle class) on the myCar object myCar.honk(); // Display the value of the brand field (from the Vehicle class) and the value of the modelName from the Car class Console.WriteLine(myCar.brand + " " + myCar.modelName); } }