Member 'object.Equals(object, object)' cannot be accessed with an instance reference; qualify it with a type name instead

Question

When I used the following code in C#...

int totalValue = 0;
int total = 0;
totalValue = int.Parse(Session[\"price\"].ToString()) * int.Parse(Session[\"day\"]         


        

Answer 1

int totalValue = 0;
int total = 0;
totalValue = int.Parse("2".ToString()) * int.Parse("2".ToString());
string s = "Yes";
totalValue += s.Equals("Yes",StringComparison.CurrentCultureIgnoreCase) ? 80 : 0;