set the default value of class property if it is null

 

 public int X { get; set; } = x; // C# 6 or higher

You can use this method

 

public PharmacyOrder

{

 MedicineId="na";

 MedicineName="na";

MedicineDealer="na";

}

Hello dude you can use of default constructor for your problem as this

 

class dmr
{
string stm;
public string str
{
get
{
return stm;
}

set
{
stm = value ;
}
}


public dmr()
{
str = "na";
}
}

class Demo
{

static void Main(string[] args)
{


dmr dmo = new dmr();

Console.WriteLine(dmo.str);

Console.ReadLine();
}