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==BitConverter==

Convert a built-in data type into an array of bytes.

<source lang="csharp">public static readonly bool IsLittleEndian</source>
BitConverter is sealed, which means that it cannot be inherited.
Methods Defined by BitConverter
Method
Meaning
public static longDoubleToInt64Bits(double v)
Converts v into a long integer.
public static byte[ ] GetBytes(bool v)
Converts v into a 1-byte array.
public static byte[ ] GetBytes(char v)
Converts v into a 2-byte array.
public static byte[ ] GetBytes(double v)
Converts v into an 8-byte.
public static byte[ ] GetBytes(float v)
Converts v into a 4-byte.
public static byte[ ] GetBytes(int v)
Converts v into a 4-byte.
public static byte[ ] GetBytes(long v)
Converts v into an 8-byte.
public static byte[ ] GetBytes(short v)
Converts v into a 2-byte.
public static byte[ ] GetBytes(uint v)
Converts v into a 4-byte.
public static byte[ ] GetBytes(ulong v)
Converts v into an 8-byte.
public static byte[ ] GetBytes(ushort v)
Converts v into a 2-byte.
public static doubleInt64BitsToDouble(long v)
Converts v into a double floating-point value.
public static bool ToBoolean(byte[ ] a,int idx)
Converts the byte at a[idx] into its bool equivalent. A non-zero value is converted to true; zero is converted to false.
public static char ToChar(byte[ ] a,int start)
Converts two bytes starting at a[start] into its char equivalent.
public static double ToDouble(byte[ ] a,int start)
Converts eight bytes starting at a[start] into its double equivalent.
public static short ToInt16(byte[ ] a,int start)
Converts two bytes starting at a[start] into its short equivalent.
public static int ToInt32(byte[ ] a,int start)
Converts four bytes starting at a[start] into its int equivalent.
public static long ToInt64(byte[ ] a,int start)
Converts eight bytes starting at a[start] into its long equivalent.
public static float ToSingle(byte[ ] a,int start)
Converts four bytes starting at a[start] into its float equivalent.
public static string ToString(byte[ ] a)
Converts the bytes in a into a string. The string contains the hexadecimal values associated with the bytes, separated by hyphens.
public static string ToString(byte[ ] a, int start)
Converts the bytes in a, beginning at a[start], into a string. The string contains the hexadecimal values associated with the bytes, separated by hyphens.
public static string ToString(byte[ ] a, int start, int count)
Converts the bytes in a, beginning at a[start] and running for count bytes, into a string. The string contains the hexadecimal values associated with the bytes, separated by hyphens.
public static ushort ToUInt16(byte[ ] a,int start)
Converts two bytes starting at a[start] into its ushort equivalent and returns the result.
public static uint ToUInt32(byte[ ] a,int start)
Converts four bytes starting at a[start] into its uint equivalent and returns the result.
public static ulong ToUInt64(byte[ ] a,int start)
Converts eight bytes starting at a[start] into its ulong equivalent and returns the result.

==Convert a bool to a byte array and display==

<source lang="csharp">using System;
using System.IO;

class MainClass
{
public static void Main()
{
byte[] b = null;

b = BitConverter.GetBytes(true);
Console.WriteLine(BitConverter.ToString(b));
}
}</source>
<pre class=codeResult>01</pre>

==Convert a byte array to a bool and display==

<source lang="csharp">using System;
using System.IO;

class MainClass
{
public static void Main()
{
byte[] b = null;

b = BitConverter.GetBytes(true);
Console.WriteLine(BitConverter.ToBoolean(b,0));

}
}</source>
<pre class=codeResult>True</pre>

==Convert a byte array to an int and display==

<source lang="csharp">using System;
using System.IO;

class MainClass
{
public static void Main()
{
byte[] b = null;
b = BitConverter.GetBytes(3678);
Console.WriteLine(BitConverter.ToInt32(b,0));
}
}</source>
<pre class=codeResult>3678</pre>

==Convert an int to a byte array and display==

<source lang="csharp">using System;
using System.IO;

class MainClass
{
public static void Main()
{
byte[] b = null;
b = BitConverter.GetBytes(3678);
Console.WriteLine(BitConverter.ToString(b));
}
}</source>
<pre class=codeResult>5E-0E-00-00</pre>

==Convert different data types to byte array and convert byte array back==

<source lang="csharp">using System;
using System.Net;
using System.Text;
class MainClass
{
public static void Main()
{
int test1 = 45;
double test2 = 3.14159;
int test3 = -1234567890;
bool test4 = false;
byte[] data = new byte[1024];
string output;
data = BitConverter.GetBytes(test1);
output = BitConverter.ToString(data);
Console.WriteLine("test1 = {0}, string = {1}", test1, output);
data = BitConverter.GetBytes(test2);
output = BitConverter.ToString(data);
Console.WriteLine("test2 = {0}, string = {1}", test2, output);
data = BitConverter.GetBytes(test3);
output = BitConverter.ToString(data);
Console.WriteLine("test3 = {0}, string = {1}", test3, output);
data = BitConverter.GetBytes(test4);
output = BitConverter.ToString(data);
Console.WriteLine("test4 = {0}, string = {1}", test4, output);
}
}</source>
<pre class=codeResult>test1 = 45, string = 2D-00-00-00
test2 = 3.14159, string = 6E-86-1B-F0-F9-21-09-40
test3 = -1234567890, string = 2E-FD-69-B6
test4 = False, string = 00</pre>

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в 15:31, 26 мая 2010

Admin: 1 версия