Parsing Strings into Numbers with the NumberStyles Enumeration

// throws System.FormatException
var number = int.Parse(" 1,000 ");

// parses into 1000
var number = int.Parse(" 1,000 ", System.Globalization.NumberStyles.AllowThousands | System.Globalization.NumberStyles.AllowLeadingWhite | System.Globalization.NumberStyles.AllowTrailingWhite);

source: https://codewithshadman.com/csharp-number-and-datetime-tips

Preventing Ambiguous DateTime Parsing and Mis-parsing

//parses
var d1 = DateTime.ParseExact("02/21/2020", "MM/dd/yyyy", null);

//throws exec
var d2 = DateTime.ParseExact("21/02/2020", "MM/dd/yyyy", null);

source: https://codewithshadman.com/csharp-number-and-datetime-tips