Create tuples of eight or more elements by nesting tuple objects in the Rest property.The tuple would look like −TupleAbove, the 8th element is added using Rest property.Let us see an example.Example Live Demousing System; public class Program {    public static void Main() {       var myTuple = Tuple.Create(1, 2.5M, "Tom", "100", 5, 10.5M, "Henry", "100");       Console.WriteLine("Item1 : "+ myTuple.Item1);       Console.WriteLine("Item2 : "+ myTuple.Item2);       Console.WriteLine("Item3 : "+ myTuple.Item3);       Console.WriteLine("Item4 : "+ myTuple.Item4);       Console.WriteLine("Item5 : "+ myTuple.Item5);       Console.WriteLine("Item6 : "+ myTuple.Item6); ... Read More

Create a tuple.var myTuple = Tuple.Create(1, 2.5M, "Amit", "100");Now to access tuple elements, use the properties.To access first element.myTuple.Item1To access second element.myTuple.Item2In the same way, for other elements, use the properties as shown below −Example Live Demousing System; public class Program {    public static void Main() {       var myTuple = Tuple.Create(1, 2.5M, "Amit", "100");       Console.WriteLine("Item1 : "+ myTuple.Item1);       Console.WriteLine("Item2 : "+ myTuple.Item2);       Console.WriteLine("Item3 : "+ myTuple.Item3);       Console.WriteLine("Item4 : "+ myTuple.Item4);    } }OutputItem1 : 1 Item2 : 2.5 Item3 : Amit Item4 : 100

It occurs when Index is outside the bounds of the array.Let us see an example. We have declare an array with 5 elements and set the size as 5.int[] arr = new int[5]; arr[0] = 10; arr[1] = 20; arr[2] = 30; arr[3] = 40; arr[4] = 50;Now, we try to add the value of an element that extends the size of our array i.e.arr[5] = 60;Above, we are trying to add element at 6th position.Example Live Demousing System; using System.IO; using System.Collections.Generic; namespace Demo {    class Program {       static void Main(string[] args) {       ... Read More

Set an array and arrange it in descending order using OrderByDescending.int[] prod = { 290, 340, 129, 540, 456, 898, 765, 789, 345};Now, use the Take() method to return specified number of elements from the beginning.Enumerable units = prod.AsQueryable().OrderByDescending(s => s).Take(2);Let us see the complete code.Example Live Demousing System; using System.Linq; using System.Collections.Generic; public class Demo {    public static void Main() {       int[] prod = { 290, 340, 129, 540, 456, 898, 765, 789, 345};       // Volume of top two products       IEnumerable units = prod.AsQueryable().OrderByDescending(s => s).Take(2);       foreach (int res in units) {          Console.WriteLine(res);       }    } }Output898 789

The Format method converts value of a specified enumerated type to its equivalent string representation. Here you can also set the format i.e. d for Decimal, x for HexaDecimal, etc.We have the following enumeration.enum Stock { PenDrive, Keyboard, Speakers };The default value gets assigned (initialize).PenDrive = 0 Keyboard = 1 Speakers = 2Now, let’s say you want the value of “Keyboard” name.Stock st = Stock.Keyboard;For that, try the following and get the constant value for Keyboard name.Enum.Format(typeof(Stock), st, "d")The following is the entire example.Example Live Demousing System; class Demo {    enum Stock { PenDrive, Keyboard, Speakers };    static void ... Read More

Convert a specified value to a 32-bit unsigned integer using the Convert.ToUInt32 method.The following is our string.string str = "210";Now, let us convert it to a 32-bit unsigned integer.uint res; res = Convert.ToUInt32(str);Example Live Demousing System; public class Demo {    public static void Main() {       string str = "210";       uint res;       res = Convert.ToUInt32(str);       Console.WriteLine("Converted string '{0}' to {1}", str, res);    } }OutputConverted string '210' to 210

To find the equality between enums, use the Equals() method.Let’s say we have the following Enum.enum Products { HardDrive, PenDrive, Keyboard};Create two Products objects and assign the same values.Products prod1 = Products.HardDrive; Products prod2 = Products.HardDrive;Now check for equality using Equals() method. It would be True since both have the same underlying value.Example Live Demousing System; class Program {    enum Products {HardDrive, PenDrive, Keyboard};    enum ProductsNew { Mouse, HeadPhone, Speakers};    static void Main() {       Products prod1 = Products.HardDrive;       Products prod2 = Products.HardDrive;       ProductsNew newProd1 = ProductsNew.HeadPhone;       ... Read More

Compare two enums using the CompareTo() method in C#.The method returns any of the following value −Less than zero: Value of source is less than value of targetZero: Value of source is equal to the value of targetMore than zero: Value of source is more than value of targetExample Live Demousing System; class Program {    enum Products { HardDrive = 0, PenDrive = 4, Keyboard = 8 };    static void Main() {       Products prod1 = Products.HardDrive;       Products prod2 = Products.PenDrive;       Products prod3 = Products.Keyboard;       Console.WriteLine("Stock for {0} ... Read More

Get the last element from a sequence using the Linq Last() method.The following is our array.int[] val = { 10, 20, 30, 40 };Now, get the last element.val.AsQueryable().Last();Example Live Demousing System; using System.Collections.Generic; using System.Linq; class Demo {    static void Main() {       int[] val = { 10, 20, 30, 40 };       // getting last element       int last_num = val.AsQueryable().Last();       Console.WriteLine("Last element: "+last_num);    } }OutputLast element: 40

Use the Convert.ToUInt64() method to convert a specified value to a 64-bit unsigned integer.The following is our char.char ch = 'a';Now, let’s convert it to a 64-bit unsigned integer.ulong res; res = Convert.ToUInt64(ch);Here is the complete example.Example Live Demousing System; public class Demo {    public static void Main() {       char ch = 'a';       ulong res;       res = Convert.ToUInt64(ch);       Console.WriteLine("Converted char value '{0}' to {1}", ch, res);    } }OutputConverted char value 'a' to 97