Inheritance and Reference methods for C # constructors Override

As you all know, C # Constructors are primarily used to set the initial values of properties in a class, but it is often overlooked that the constructor method of a class can also refer to a constructor method in the calling parent class or other constructor method of itself, as in a method. Often so write a lot of duplicate code. The following code describes several uses of the class's construction method.

usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;usingSystem.Threading.Tasks;namespacepractise1{classProgram {Static voidMain (string[] args) {Testcon con=NewTestcon (); Console.WriteLine (Con.            ToString ()); TestA testA1=NewTestA (); Console.WriteLine ("Test Class A non-parametric construction method");            Console.WriteLine (Testa1.tostring ());            Console.WriteLine (); TestA testA2=NewTestA ("Set First Param"); Console.WriteLine ("test Class A A parameter construction method");            Console.WriteLine (Testa2.tostring ());            Console.WriteLine (); Testb testB1=NewTestb (); Console.WriteLine ("Test Class B No-parameter construction method");            Console.WriteLine (Testb1.tostring ());            Console.WriteLine (); Testb testB2=NewTESTB ("Set First Param"); Console.WriteLine ("Test Class B A parameter construction method");            Console.WriteLine (Testb2.tostring ());            Console.WriteLine (); Testb testB3=NewTESTB ("Set First Param","Set Second Param"); Console.WriteLine ("Test Class B Two parameter construction method");            Console.WriteLine (Testb3.tostring ());            Console.WriteLine (); Testb testB4=NewTESTB ("Set First Param","Set Second Param","Set Third Param"); Console.WriteLine ("Test Class B Three parameter construction method");            Console.WriteLine (Testb4.tostring ());            Console.WriteLine ();        Console.ReadLine (); }        classTestcon {Private string_a ="_A1"; Private string_b ="_b2"; }        /// <summary>         ///Test Class A/// </summary>         classTestA {protected string_testvaluea; /// <summary>             ///Non-parametric construction method/// </summary>              PublicTestA (): This("Set First Param")            {            }            /// <summary>             ///a method for constructing parameters/// </summary>             /// <param name= "value" ></param>              PublicTestA (stringvalue) {_testvaluea=value; }            /// <summary>             ///re-tostring Method/// </summary>             /// <returns></returns>              Public Override stringToString () {return  This. _testvaluea; }        }        /// <summary>         ///test class Testb, inheriting from the Testa class/// </summary>         classTestb:testa {protected string_testvalueb; protected string_testvaluec; /// <summary>             ///calling a construction method in a parent class/// </summary>              PublicTESTB ():Base()            {                 This. _testvalueb ="Set Second Param";  This. _TESTVALUEC ="Set Third Param"; }            /// <summary>             ///calling a construction method in a parent class/// </summary>             /// <param name= "Valuea" ></param>              PublicTESTB (stringValuea):Base(Valuea) { This. _testvalueb ="Set Second Param";  This. _TESTVALUEC ="Set Third Param"; }            /// <summary>             ///calling other constructor methods/// </summary>             /// <param name= "Valuea" ></param>             /// <param name= "Valueb" ></param>              PublicTESTB (stringValuea,stringValueb): This(Valuea, Valueb,"Set Third Param")            {            }            /// <summary>             ///three methods for constructing parameters/// </summary>             /// <param name= "Valuea" ></param>             /// <param name= "Valueb" ></param>             /// <param name= "Valuec" ></param>              PublicTESTB (stringValuea,stringValueb,stringVALUEC) {                 This. _testvaluea =Valuea;  This. _testvalueb =Valueb;  This. _TESTVALUEC =Valuec; }            /// <summary>             ///re-tostring Method/// </summary>             /// <returns></returns>              Public Override stringToString () {return  This. _testvaluea +"\ n"+ This. _testvalueb +"\ n"+ This. _testvaluec; }        }    }}

Inheritance and Reference methods for C # constructors Override