BitConverter.ToUInt32-Methode
Gibt eine vorzeichenlose 32-Bit-Ganzzahl zurück, die aus vier Bytes an der angegebenen Position in einem Bytearray konvertiert wurde.
Diese Methode ist nicht CLS-kompatibel.
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
<CLSCompliantAttribute(False)> _
Public Shared Function ToUInt32 ( _
value As Byte(), _
startIndex As Integer _
) As UInteger
'Usage
Dim value As Byte()
Dim startIndex As Integer
Dim returnValue As UInteger
returnValue = BitConverter.ToUInt32(value, startIndex)
[CLSCompliantAttribute(false)]
public static uint ToUInt32 (
byte[] value,
int startIndex
)
[CLSCompliantAttribute(false)]
public:
static unsigned int ToUInt32 (
array<unsigned char>^ value,
int startIndex
)
/** @attribute CLSCompliantAttribute(false) */
public static UInt32 ToUInt32 (
byte[] value,
int startIndex
)
CLSCompliantAttribute(false)
public static function ToUInt32 (
value : byte[],
startIndex : int
) : uint
Parameter
- value
Ein Bytearray.
- startIndex
Die Anfangsposition in value.
Rückgabewert
Eine vorzeichenlose 32-Bit-Ganzzahl, die beginnend bei startIndex aus vier Bytes gebildet wird.
Ausnahmen
| Ausnahmetyp | Bedingung |
|---|---|
value ist NULL (Nothing in Visual Basic). |
|
startIndex ist kleiner als 0 (null) oder größer als die Länge von value minus 4. |
Beispiel
Im folgenden Codebeispiel werden Elemente von Byte-Arrays mithilfe der ToUInt32-Methode in UInt32-Werte konvertiert.
' Example of the BitConverter.ToUInt32 method.
Imports System
Imports Microsoft.VisualBasic
Module BytesToUInt32Demo
Const formatter As String = "{0,5}{1,17}{2,15}"
' Convert four Byte array elements to a UInt32 and display it.
Sub BAToUInt32( bytes( ) As Byte, index As Integer )
Dim value As UInt32 = BitConverter.ToUInt32( bytes, index )
Console.WriteLine( formatter, index, _
BitConverter.ToString( bytes, index, 4 ), value )
End Sub
Sub Main( )
Dim byteArray as Byte( ) = { _
15, 0, 0, 0, 0, 16, 0, 255, 3, 0, _
0, 202, 154, 59, 255, 255, 255, 255, 127 }
Console.WriteLine( _
"This example of the BitConverter.ToUInt32( Byte( ), " & _
"Integer ) " & vbCrLf & "method generates the " & _
"following output. It converts elements " & vbCrLf & _
"of a Byte array to UInt32 values." & vbCrLf )
Console.WriteLine( "initial Byte array" )
Console.WriteLine( "------------------" )
Console.WriteLine( BitConverter.ToString( byteArray ) )
Console.WriteLine( )
Console.WriteLine( formatter, "index", "array elements", _
"UInt32" )
Console.WriteLine( formatter, "-----", "--------------", _
"------" )
' Convert Byte array elements to UInt32 values.
BAToUInt32( byteArray, 1 )
BAToUInt32( byteArray, 0 )
BAToUInt32( byteArray, 7 )
BAToUInt32( byteArray, 3 )
BAToUInt32( byteArray, 10 )
BAToUInt32( byteArray, 15 )
BAToUInt32( byteArray, 14 )
End Sub
End Module
' This example of the BitConverter.ToUInt32( Byte( ), Integer )
' method generates the following output. It converts elements
' of a Byte array to UInt32 values.
'
' initial Byte array
' ------------------
' 0F-00-00-00-00-10-00-FF-03-00-00-CA-9A-3B-FF-FF-FF-FF-7F
'
' index array elements UInt32
' ----- -------------- ------
' 1 00-00-00-00 0
' 0 0F-00-00-00 15
' 7 FF-03-00-00 1023
' 3 00-00-10-00 1048576
' 10 00-CA-9A-3B 1000000000
' 15 FF-FF-FF-7F 2147483647
' 14 FF-FF-FF-FF 4294967295
// Example of the BitConverter.ToUInt32 method.
using System;
class BytesToUInt32Demo
{
const string formatter = "{0,5}{1,17}{2,15}";
// Convert four byte array elements to a uint and display it.
public static void BAToUInt32( byte[ ] bytes, int index )
{
uint value = BitConverter.ToUInt32( bytes, index );
Console.WriteLine( formatter, index,
BitConverter.ToString( bytes, index, 4 ), value );
}
public static void Main( )
{
byte[ ] byteArray = {
15, 0, 0, 0, 0, 16, 0, 255, 3, 0,
0, 202, 154, 59, 255, 255, 255, 255, 127 };
Console.WriteLine(
"This example of the BitConverter.ToUInt32( byte[ ], " +
"int ) \nmethod generates the following output. It " +
"converts elements \nof a byte array to uint values.\n" );
Console.WriteLine( "initial byte array" );
Console.WriteLine( "------------------" );
Console.WriteLine( BitConverter.ToString( byteArray ) );
Console.WriteLine( );
Console.WriteLine( formatter, "index", "array elements",
"uint" );
Console.WriteLine( formatter, "-----", "--------------",
"----" );
// Convert byte array elements to uint values.
BAToUInt32( byteArray, 1 );
BAToUInt32( byteArray, 0 );
BAToUInt32( byteArray, 7 );
BAToUInt32( byteArray, 3 );
BAToUInt32( byteArray, 10 );
BAToUInt32( byteArray, 15 );
BAToUInt32( byteArray, 14 );
}
}
/*
This example of the BitConverter.ToUInt32( byte[ ], int )
method generates the following output. It converts elements
of a byte array to uint values.
initial byte array
------------------
0F-00-00-00-00-10-00-FF-03-00-00-CA-9A-3B-FF-FF-FF-FF-7F
index array elements uint
----- -------------- ----
1 00-00-00-00 0
0 0F-00-00-00 15
7 FF-03-00-00 1023
3 00-00-10-00 1048576
10 00-CA-9A-3B 1000000000
15 FF-FF-FF-7F 2147483647
14 FF-FF-FF-FF 4294967295
*/
// Example of the BitConverter::ToUInt32 method.
using namespace System;
// Convert four byte array elements to an unsigned int and display it.
void BAToUInt32( array<unsigned char>^bytes, int index )
{
unsigned int value = BitConverter::ToUInt32( bytes, index );
Console::WriteLine( "{0,5}{1,17}{2,15}", index, BitConverter::ToString( bytes, index, 4 ), value );
}
int main()
{
array<unsigned char>^byteArray = {15,0,0,0,0,16,0,255,3,0,0,202,154,59,255,255,255,255,127};
Console::WriteLine( "This example of the BitConverter::ToUInt32( unsigned "
"char[ ], int ) \nmethod generates the following output. It "
"converts elements of a \nbyte array to unsigned int "
"values.\n" );
Console::WriteLine( "initial byte array" );
Console::WriteLine( "------------------" );
Console::WriteLine( BitConverter::ToString( byteArray ) );
Console::WriteLine();
Console::WriteLine( "{0,5}{1,17}{2,15}", "index", "array elements", "unsigned int" );
Console::WriteLine( "{0,5}{1,17}{2,15}", "-----", "--------------", "------------" );
// Convert byte array elements to unsigned int values.
BAToUInt32( byteArray, 1 );
BAToUInt32( byteArray, 0 );
BAToUInt32( byteArray, 7 );
BAToUInt32( byteArray, 3 );
BAToUInt32( byteArray, 10 );
BAToUInt32( byteArray, 15 );
BAToUInt32( byteArray, 14 );
}
/*
This example of the BitConverter::ToUInt32( unsigned char[ ], int )
method generates the following output. It converts elements of a
byte array to unsigned int values.
initial byte array
------------------
0F-00-00-00-00-10-00-FF-03-00-00-CA-9A-3B-FF-FF-FF-FF-7F
index array elements unsigned int
----- -------------- ------------
1 00-00-00-00 0
0 0F-00-00-00 15
7 FF-03-00-00 1023
3 00-00-10-00 1048576
10 00-CA-9A-3B 1000000000
15 FF-FF-FF-7F 2147483647
14 FF-FF-FF-FF 4294967295
*/
// Example of the BitConverter.ToUInt32 method.
import System.*;
class BytesToUInt32Demo
{
private static String formatter = "{0,5}{1,17}{2,15}";
// Convert four byte array elements to a uint and display it.
public static void BAToUInt32(ubyte bytes[], int index)
{
UInt32 value = BitConverter.ToUInt32(bytes, index);
Console.WriteLine(formatter, (Int32)index,
BitConverter.ToString(bytes, index, 4), (UInt32)value);
} //BAToUInt32
public static void main(String[] args)
{
ubyte byteArray[] = { 15, 0, 0, 0, 0, 16, 0, 255, 3, 0, 0, 202, 154,
59, 255, 255, 255, 255, 127 };
Console.WriteLine("This example of the "
+ "BitConverter.ToUInt32( byte[ ], int ) \n"
+ "method generates the following output. "
+ "It converts elements \nof a byte array to uint values.\n");
Console.WriteLine("initial byte array");
Console.WriteLine("------------------");
Console.WriteLine(BitConverter.ToString(byteArray));
Console.WriteLine();
Console.WriteLine(formatter, "index", "array elements", "uint");
Console.WriteLine(formatter, "-----", "--------------", "----");
// Convert byte array elements to uint values.
BAToUInt32(byteArray, 1);
BAToUInt32(byteArray, 0);
BAToUInt32(byteArray, 7);
BAToUInt32(byteArray, 3);
BAToUInt32(byteArray, 10);
BAToUInt32(byteArray, 15);
BAToUInt32(byteArray, 14);
} //main
}//BytesToUInt32Demo
/*
This example of the BitConverter.ToUInt32( byte[ ], int )
method generates the following output. It converts elements
of a byte array to uint values.
initial byte array
------------------
0F-00-00-00-00-10-00-FF-03-00-00-CA-9A-3B-FF-FF-FF-FF-7F
index array elements uint
----- -------------- ----
1 00-00-00-00 0
0 0F-00-00-00 15
7 FF-03-00-00 1023
3 00-00-10-00 1048576
10 00-CA-9A-3B 1000000000
15 FF-FF-FF-7F 2147483647
14 FF-FF-FF-FF 4294967295
*/
Plattformen
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile für Pocket PC, Windows Mobile für Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen.
Versionsinformationen
.NET Framework
Unterstützt in: 2.0, 1.1, 1.0
.NET Compact Framework
Unterstützt in: 2.0, 1.0
Siehe auch
Referenz
BitConverter-Klasse
BitConverter-Member
System-Namespace
UInt32