Buffer.ByteLength(Array) Methode
Definitie
Belangrijk
Bepaalde informatie heeft betrekking op een voorlopige productversie die aanzienlijk kan worden gewijzigd voordat deze wordt uitgebracht. Microsoft biedt geen enkele expliciete of impliciete garanties met betrekking tot de informatie die hier wordt verstrekt.
Retourneert het aantal bytes in de opgegeven matrix.
public:
static int ByteLength(Array ^ array);public static int ByteLength(Array array);static member ByteLength : Array -> intPublic Shared Function ByteLength (array As Array) As IntegerParameters
- array
- Array
Een matrix.
Retouren
Het aantal bytes in de matrix.
Uitzonderingen
array is null.
array is geen primitieve.
array is groter dan 2 gigabyte (GB).
Voorbeelden
Het volgende codevoorbeeld illustreert het gebruik van de ByteLength methode om het aantal bytes in een matrix te retourneren.
// Example of the Buffer.ByteLength method.
using System;
class ByteLengthDemo
{
const string formatter = "{0,10}{1,20}{2,9}{3,12}";
public static void ArrayInfo( Array arr, string name )
{
int byteLength = Buffer.ByteLength( arr );
// Display the array name, type, Length, and ByteLength.
Console.WriteLine( formatter, name, arr.GetType( ),
arr.Length, byteLength );
}
public static void Main( )
{
byte[ ] bytes = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 };
bool[ ] bools = { true, false, true, false, true };
char[ ] chars = { ' ', '$', '\"', 'A', '{' };
short[ ] shorts = { 258, 259, 260, 261, 262, 263 };
float[ ] singles = { 1, 678, 2.37E33F, .00415F, 8.9F };
double[ ] doubles = { 2E-22, .003, 4.4E44, 555E55 };
long[ ] longs = { 1, 10, 100, 1000, 10000, 100000 };
Console.WriteLine(
"This example of the Buffer.ByteLength( Array ) " +
"\nmethod generates the following output.\n" );
Console.WriteLine( formatter, "Array name", "Array type",
"Length", "ByteLength" );
Console.WriteLine( formatter, "----------", "----------",
"------", "----------" );
// Display the Length and ByteLength for each array.
ArrayInfo( bytes, "bytes" );
ArrayInfo( bools, "bools" );
ArrayInfo( chars, "chars" );
ArrayInfo( shorts, "shorts" );
ArrayInfo( singles, "singles" );
ArrayInfo( doubles, "doubles" );
ArrayInfo( longs, "longs" );
}
}
/*
This example of the Buffer.ByteLength( Array )
method generates the following output.
Array name Array type Length ByteLength
---------- ---------- ------ ----------
bytes System.Byte[] 10 10
bools System.Boolean[] 5 5
chars System.Char[] 5 10
shorts System.Int16[] 6 12
singles System.Single[] 5 20
doubles System.Double[] 4 32
longs System.Int64[] 6 48
*/
open System
let print obj1 obj2 obj3 obj4 =
printfn $"{obj1,10}{obj2,20}{obj3,9}{obj4,12}"
let arrayInfo (arr: Array) name =
let byteLength = Buffer.ByteLength arr
// Display the array name, type, Length, and ByteLength.
print name (arr.GetType()) arr.Length byteLength
let bytes = [| 1uy; 2uy; 3uy; 4uy; 5uy; 6uy; 7uy; 8uy; 9uy; 0uy |]
let bools = [| true; false; true; false; true |]
let chars = [| ' '; '$'; '\"'; 'A'; '{' |]
let shorts = [| 258s; 259s; 260s; 261s; 262s; 263s |]
let singles = [| 1f; 678f; 2.37E33f; 0.00415f; 8.9f |]
let doubles = [| 2E-22; 0.003; 4.4E44; 555E55 |]
let longs = [| 1L; 10L; 100L; 1000L; 10000L; 100000L |]
printfn "This example of the Buffer.ByteLength(Array) \nmethod generates the following output.\n"
print "Array name" "Array type" "Length" "ByteLength"
print "----------" "----------" "------" "----------"
// Display the Length and ByteLength for each array.
arrayInfo bytes "bytes"
arrayInfo bools "bools"
arrayInfo chars "chars"
arrayInfo shorts "shorts"
arrayInfo singles "singles"
arrayInfo doubles "doubles"
arrayInfo longs "longs"
// This example of the Buffer.ByteLength(Array)
// method generates the following output.
//
// Array name Array type Length ByteLength
// ---------- ---------- ------ ----------
// bytes System.Byte[] 10 10
// bools System.Boolean[] 5 5
// chars System.Char[] 5 10
// shorts System.Int16[] 6 12
// singles System.Single[] 5 20
// doubles System.Double[] 4 32
// longs System.Int64[] 6 48
' Example of the Buffer.ByteLength method.
Module ByteLengthDemo
Const formatter As String = "{0,10}{1,20}{2,9}{3,12}"
Sub ArrayInfo( arr As Array, name As String )
Dim byteLength As Integer = Buffer.ByteLength( arr )
' Display the array name, type, Length, and ByteLength.
Console.WriteLine( formatter, name, arr.GetType, arr.Length, _
byteLength )
End Sub
Sub Main( )
Dim bytes( ) As Byte = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 }
Dim bools( ) As Boolean = { True, False, True, False, True }
Dim chars( ) As Char = { " "c, "$"c, """"c, "A"c, "{"c }
Dim shorts( ) As Short = { 258, 259, 260, 261, 262, 263 }
Dim singles( ) As Single = { 1, 678, 2.37E33, .00415, 8.9 }
Dim doubles( ) As Double = { 2E-22, .003, 4.4E44, 555E55 }
Dim longs( ) As Long = { 1, 10, 100, 1000, 10000, 100000 }
Console.WriteLine( _
"This example of the Buffer.ByteLength( Array ) " & _
vbCrLf & "method generates the following output." & vbCrLf )
Console.WriteLine( formatter, "Array name", "Array type", _
"Length", "ByteLength" )
Console.WriteLine( formatter, "----------", "----------", _
"------", "----------" )
' Display the Length and ByteLength for each array.
ArrayInfo( bytes, "bytes" )
ArrayInfo( bools, "bools" )
ArrayInfo( chars, "chars" )
ArrayInfo( shorts, "shorts" )
ArrayInfo( singles, "singles" )
ArrayInfo( doubles, "doubles" )
ArrayInfo( longs, "longs" )
End Sub
End Module
' This example of the Buffer.ByteLength( Array )
' method generates the following output.
'
' Array name Array type Length ByteLength
' ---------- ---------- ------ ----------
' bytes System.Byte[] 10 10
' bools System.Boolean[] 5 5
' chars System.Char[] 5 10
' shorts System.Int16[] 6 12
' singles System.Single[] 5 20
' doubles System.Double[] 4 32
' longs System.Int64[] 6 48
