Question

I received this error on following code.Is this + sign is not available in C# ?

Error : Operator ‘+’ cannot be applied to operands of type ‘System.date.time’ and ‘char’

 return StartDate +';'+EndDate;

EDIT :

After the answers i edited code like this.but then i got those error

return StartDate.ToString() + ';' + EndDate.ToString();

Error : Since Hdate.HDate(); return void,a return keyword must not be followed by an object expression

The Whole Code is here :Click Here to see whole code

Answer 1

Just use “;” instead of ‘;’:

return StartDate +";"+EndDate;

There is a + operator for strings (Concat) and it will operate on objects (with .ToString()) – so the statement is valid if you give a string.
In your case there is none such operator for characters and the compiler cannot know that you implicitly want to convert everything to string.

EDIT: to your second problem (consider making it a new question in the future):

straight from your code (full version):

public HDate(){

    DateTime today = DateTime.Now;
    /* snip - not relevant */   
       return StartDate+';'+EndDate;
   }

you see: this is a constructor for your HDate type – and you return something in the last statment … but you MUST not