Este método se usa para devolver un entero sin signo de 16 bits convertido a partir de dos bytes en una posición específica en una array de bytes.
Sintaxis:
public static ushort ToUInt16 (byte[] value, int startIndex);
Parámetros:
valor: Es una array de bytes.
startIndex: Es la posición inicial dentro del valor.
Valor devuelto: este método devuelve un entero sin signo de 16 bits formado por dos bytes que comienzan en startIndex .
Excepciones:
- ArgumentException: si startIndex es igual a la longitud de bytes menos 1.
- ArgumentNullException: si los bytes son nulos.
- ArgumentOutOfRangeException: si startIndex es menor que cero o mayor que la longitud de bytes menos 1.
Los siguientes programas ilustran el uso del método BitConverter.ToUInt16 :
Ejemplo 1:
CSHARP
// C# program to demonstrate
// BitConverter.ToUInt16(Byte[], Int32);
// Method
using System;
class GFG {
// Main Method
public static void Main()
{
try {
// Define an array of byte values.
byte[] bytes = {32, 0, 0, 42, 0, 65,
0, 125, 0, 197, 0,
168, 3, 41, 4, 125,
32};
// Display the values of the myArr.
Console.Write("Initial Array: ");
// calling the PrintIndexAndValues()
// method to print
PrintIndexAndValues(bytes);
// print char value
Console.WriteLine("index byte Array ushort value");
for (int index = 0; index < bytes.Length - 1;
index = index + 2) {
ushort values = BitConverter.ToUInt16(bytes, index);
Console.WriteLine(" {0} {1} {2}",
index, BitConverter.ToString(bytes,
index, 2), values);
}
}
catch (ArgumentNullException e) {
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
catch (ArgumentOutOfRangeException e) {
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
catch (ArgumentException e) {
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
}
// Defining the method
// PrintIndexAndValues
public static void PrintIndexAndValues(byte[] myArr)
{
for (int i = 0; i < myArr.Length; i++) {
Console.Write("{0} ", myArr[i]);
}
Console.WriteLine();
Console.WriteLine();
}
}
Producción:
Initial Array: 32 0 0 42 0 65 0 125 0 197 0 168 3 41 4 125 32 index byte Array ushort value 0 20-00 32 2 00-2A 10752 4 00-41 16640 6 00-7D 32000 8 00-C5 50432 10 00-A8 43008 12 03-29 10499 14 04-7D 32004
Ejemplo 2: para ArgumentException
CSHARP
// C# program to demonstrate
// BitConverter.ToUInt16(Byte[], Int32);
// Method
using System;
class GFG {
// Main Method
public static void Main()
{
try {
// Define an array of byte values.
byte[] bytes = {32, 0, 0, 42, 0, 65,
0, 125, 0, 197, 0,
168, 3, 41, 4, 125 };
// Display the values of the myArr.
Console.Write("Initial Array: ");
// calling the PrintIndexAndValues()
// method to print
PrintIndexAndValues(bytes);
// print char value
Console.WriteLine("index element ushot value");
for (int index = 1; index < bytes.Length;
index = index + 2) {
if (index == bytes.Length - 1) {
Console.WriteLine();
Console.WriteLine("startindex is {0} which is equals to "+
"the length of Array minus 1.", index);
ushort values = BitConverter.ToUInt16(bytes, index);
Console.WriteLine(" {0} {1} {2}",
index, BitConverter.ToString(bytes,
index, 2), values);
}
else {
ushort values = BitConverter.ToUInt16(bytes, index);
Console.WriteLine(" {0} {1} {2}",
index, BitConverter.ToString(bytes,
index, 2), values);
}
}
}
catch (ArgumentNullException e) {
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
catch (ArgumentOutOfRangeException e) {
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
catch (ArgumentException e) {
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
}
// Defining the method
// PrintIndexAndValues
public static void PrintIndexAndValues(byte[] myArr)
{
for (int i = 0; i < myArr.Length; i++) {
Console.Write("{0} ", myArr[i]);
}
Console.WriteLine();
Console.WriteLine();
Console.WriteLine("initial Array in string: {0} ",
BitConverter.ToString(myArr));
Console.WriteLine();
}
}
Producción
Initial Array: 32 0 0 42 0 65 0 125 0 197 0 168 3 41 4 125 initial Array in string: 20-00-00-2A-00-41-00-7D-00-C5-00-A8-03-29-04-7D index element ushot value 1 00-00 0 3 2A-00 42 5 41-00 65 7 7D-00 125 9 C5-00 197 11 A8-03 936 13 29-04 1065 startindex is 15 which is equals to the length of Array minus 1. Exception Thrown: System.ArgumentException
Ejemplo 3: para ArgumentOutOfRangeException
CSHARP
// C# program to demonstrate
// BitConverter.ToUInt16(Byte[], Int32);
// Method
using System;
class GFG {
// Main Method
public static void Main()
{
try {
// Define an array of byte values.
byte[] bytes = {32, 0, 0, 42, 0, 65, 0, 125, 0,
197, 0, 168, 3, 41, 4, 125};
// Display the values of the myArr.
Console.Write("Initial Array: ");
// calling the PrintIndexAndValues()
// method to print
PrintIndexAndValues(bytes);
// print char value
Console.WriteLine("index element ushot value");
for (int index = 0; index < bytes.Length + 1;
index = index + 2) {
if (index == bytes.Length) {
Console.WriteLine();
Console.WriteLine("startindex is {0} which is greater than "+
"the length of Array minus 1.", index);
ushort values = BitConverter.ToUInt16(bytes, index);
Console.WriteLine(" {0} {1} {2}",
index, BitConverter.ToString(bytes,
index, 2), values);
}
else {
ushort values = BitConverter.ToUInt16(bytes, index);
Console.WriteLine(" {0} {1} {2}",
index, BitConverter.ToString(bytes,
index, 2), values);
}
}
}
catch (ArgumentNullException e) {
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
catch (ArgumentOutOfRangeException e) {
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
catch (ArgumentException e) {
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
}
// Defining the method
// PrintIndexAndValues
public static void PrintIndexAndValues(byte[] myArr)
{
for (int i = 0; i < myArr.Length; i++) {
Console.Write("{0} ", myArr[i]);
}
Console.WriteLine();
Console.WriteLine();
Console.WriteLine("initial Array in string: {0} ",
BitConverter.ToString(myArr));
Console.WriteLine();
}
}
Producción
Initial Array: 32 0 0 42 0 65 0 125 0 197 0 168 3 41 4 125 initial Array in string: 20-00-00-2A-00-41-00-7D-00-C5-00-A8-03-29-04-7D index element ushot value 0 20-00 32 2 00-2A 10752 4 00-41 16640 6 00-7D 32000 8 00-C5 50432 10 00-A8 43008 12 03-29 10499 14 04-7D 32004 startindex is 16 which is greater than the length of Array minus 1. Exception Thrown: System.ArgumentOutOfRangeException
Ejemplo 4: Para ArgumentNullException
CSHARP
// C# program to demonstrate
// BitConverter.ToUInt16(Byte[], Int32);
// Method
using System;
class GFG {
// Main Method
public static void Main()
{
try {
// Define an array of byte values.
byte[] bytes = null;
// get the long value
ushort values = BitConverter.ToUInt16(bytes, 0);
Console.Write("{0}", values);
}
catch (ArgumentNullException e) {
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
catch (ArgumentOutOfRangeException e) {
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
catch (ArgumentException e) {
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
}
}
Producción:
Exception Thrown: System.ArgumentNullException
Referencia:
Publicación traducida automáticamente
Artículo escrito por RohitPrasad3 y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA