base 64 encoder code example
Example 1: base64decode C#
string base64Encoded = "your-encoded-text";
string base64Decoded;
byte[] data = System.Convert.FromBase64String(base64Encoded);
base64Decoded = System.Text.ASCIIEncoding.ASCII.GetString(data);
Example 2: JavaScriptSerializer() and convert to base64
class Program
{
static void Main(string[] args)
{
var account = new ExternalAccount() { Name = "Someone" };
string json = JsonConvert.SerializeObject(account);
string base64EncodedExternalAccount = Convert.ToBase64String(Encoding.UTF8.GetBytes(json));
byte[] byteArray = Convert.FromBase64String(base64EncodedExternalAccount);
string jsonBack = Encoding.UTF8.GetString(byteArray);
var accountBack = JsonConvert.DeserializeObject<ExternalAccount>(jsonBack);
Console.WriteLine(accountBack.Name);
Console.ReadLine();
}
}
[Serializable]
public class ExternalAccount
{
public string Name { get; set; }
}
Example 3: Int64
sbyte value1 = 124;
short value2 = 1618;
int value3 = Int32.MaxValue;
long number1 = value1;
long number2 = value2;
long number3 = value3;
Example 4: Int64
ulong ulNumber = 163245617943825;
try {
long number1 = (long) ulNumber;
Console.WriteLine(number1);
}
catch (OverflowException) {
Console.WriteLine("{0} is out of range of an Int64.", ulNumber);
}
double dbl2 = 35901.997;
try {
long number2 = (long) dbl2;
Console.WriteLine(number2);
}
catch (OverflowException) {
Console.WriteLine("{0} is out of range of an Int64.", dbl2);
}
BigInteger bigNumber = (BigInteger) 1.63201978555e30;
try {
long number3 = (long) bigNumber;
Console.WriteLine(number3);
}
catch (OverflowException) {
Console.WriteLine("{0} is out of range of an Int64.", bigNumber);
}
Example 5: base64
function getBase64(file:any) {
return new Promise((resolve, reject) => {
const reader = new FileReader();
reader.readAsDataURL(file);
reader.onload = () => resolve(reader.result);
reader.onerror = error => reject(error);
});
}