convert hex string to int c# code example

Example 1: convert to base64 c#

public static string Base64Encode(string plainText) {
  var plainTextBytes = System.Text.Encoding.UTF8.GetBytes(plainText);
  return System.Convert.ToBase64String(plainTextBytes);
}

Example 2: hex string to int c#

string hex = "142CBD";
// this returns 1322173
int intValue = int.Parse(hex, System.Globalization.NumberStyles.HexNumber);

Example 3: hex string to int c#

string prefixedHex = "0x142CBD";
// this works, and returns 1322173
int intValue = Convert.ToInt32(prefixedHex , 16);