private: This modifier makes a member only visible inside the class.

internal: This modifier makes a member only visible inside the class or within the same assembly.

protected: This modifier makes a member only visible inside the class or derived classes.

public: This modifier makes a member visible everywhere.

static: This keyword makes the member shared by all instances and accessed through the type.

const: This keyword makes a field a fixed literal value that should never change.

readonly: This keyword makes a field that can only be assigned at runtime using a constructor.

A method with 16383 parameters can be compiled, ran, and called. Any more than that and an unstated exception is thrown at runtime. IL has predefined opcodes to load up to four parameters and a special opcode to load up to 16-bits (65,536) parameters. A best practice is to limit your methods to three or four parameters. You can combine multiple parameters into a new class to encapsulate them into a single parameter. You can find more information on this at http://stackoverflow.com/questions/12658883/what-is-the-maximum-number-of-parameters-that-a-c-sharp-method-can-be-defined-as

A constructor allocates memory and initializes field values.

If you don't apply the [Flags] attribute to an enum type when you want to store combined values, then a stored enum value that is a combination will return as the stored integer value instead of a comma-separated list of text values.

You can use the partial keyword to split the definition of a type over multiple files.