C# string to number code example

Example 1: string to int c#

int x = Int32.Parse("1234");

Example 2: c# how to convert string to int

var myInt = int.Parse("123"); // this one throw exception if the argument is not a number
var successfullyParsed = int.TryParse("123", out convertedInt); //this returns true if the convertion has been successfully done (integer is stored in "convertedInt"), otherwise false.

Example 3: parsing string to int c#

string userInput = Console.ReadLine();
int convert;
Int32.TryParse(userInput, out convert);  // Converting String to int

Example 4: convert string to number C#

int x = 0;

Int32.TryParse(TextBoxD1.Text, out x);

Example 5: convert string to int c#

Int16.Parse("100"); // returns 100
Int16.Parse("(100)", NumberStyles.AllowParentheses); // returns -100

int.Parse("30,000", NumberStyles.AllowThousands, new CultureInfo("en-au"));// returns 30000
int.Parse("$ 10000", NumberStyles.AllowCurrencySymbol); //returns 100
int.Parse("-100", NumberStyles.AllowLeadingSign); // returns -100
int.Parse(" 100 ", NumberStyles.AllowLeadingWhite | NumberStyles.AllowTrailingWhite); // returns 100

Int64.Parse("2147483649"); // returns 2147483649

Example 6: how to convert string to int in c#

string a = ("2");
int b = Convert.ToInt16(a)