Petr questions

• Singleton rule questions (do not allow to create copy and deserialization)
• Predicate<int> match question
• SQL: column <> '%TEST%' does not work, why?
• C#: Accessing image added to project folder
• Why string.Replace("X","Y") works only when assigned to new string?
• Windows Forms: create the main application after login, which form to run?
• Why is my BeginInvoke method not async?
• Question regarding to value/reference type of events
• Penetration Testing vs Other Security Testing
• Lock in properties, good approach?

Petr answers