A nullable type : Nullable : Data Type C# Examples

A nullable type

    
using  System;  
  
class  MainClass{  
    public  static  void  Main()  {  
        int?  count  =  null;  
  
        if(count.HasValue)  
            Console.WriteLine("count  has  this  value:  "  +  count.Value);  
        else    
            Console.WriteLine("count  has  no  value");  
  
        count  =  100;  
  
        if(count.HasValue)  
            Console.WriteLine("count  has  this  value:  "  +  count.Value);  
        else    
            Console.WriteLine("count  has  no  value");          
    }  
}
    
   
  
   

count has no value
count has this value: 100

Related in same category :
• null unification
• Nullable long
• Nullable Struct
• Nullable Types Access
• Nullable Types Access
• Nullable Types Assignment
• Null Coalescing Operator
• Use nullable objects in expressions
• Assign value to nullable int
• Using ??