Copies a specified number of characters from a specified position in this instance to a specified position in an array of Unicode characters.
Assembly: mscorlib (in mscorlib.dll)
Syntax
Public Sub CopyTo ( _
sourceIndex As Integer, _
destination As Char(), _
destinationIndex As Integer, _
count As Integer _
)public void CopyTo(
int sourceIndex,
char[] destination,
int destinationIndex,
int count
)public:
void CopyTo(
int sourceIndex,
array<wchar_t>^ destination,
int destinationIndex,
int count
)member CopyTo :
sourceIndex:int *
destination:char[] *
destinationIndex:int *
count:int -> unit
Parameters
- sourceIndex
- Type: System
. . :: . Int32
The index of the first character in this instance to copy.
- destination
- Type:
array< System. . :: . Char> [] () []
An array of Unicode characters to which characters in this instance are copied.
- destinationIndex
- Type: System
. . :: . Int32
The index in destination at which the copy operation begins.
- count
- Type: System
. . :: . Int32
The number of characters in this instance to copy to destination.
Exceptions
| Exception | Condition |
|---|---|
| ArgumentNullException | destination is |
| ArgumentOutOfRangeException | sourceIndex, destinationIndex, or count is negative -or- count is greater than the length of the substring from startIndex to the end of this instance -or- count is greater than the length of the subarray from destinationIndex to the end of destination |
Examples
The following example demonstrates the CopyTo method.
Public Class CopyToTest
Public Shared Sub Main()
' Embed an array of characters in a string
Dim strSource As String = "changed"
Dim destination As Char() = {"T"c, "h"c, "e"c, " "c, "i"c, "n"c, "i"c, _
"t"c, "i"c, "a"c, "l"c, " "c, "a"c, "r"c, "r"c, "a"c, "y"c}
' Print the char array
Console.WriteLine(destination)
' Embed the source string in the destination string
strSource.CopyTo(0, destination, 4, strSource.Length)
' Print the resulting array
Console.WriteLine(destination)
strSource = "A different string"
' Embed only a section of the source string in the destination
strSource.CopyTo(2, destination, 3, 9)
' Print the resulting array
Console.WriteLine(destination)
End Sub
End Class
' The example displays the following output to the console:
' The initial array
' The changed array
' Thedifferentarray
using System;
public class CopyToTest {
public static void Main() {
// Embed an array of characters in a string
string strSource = "changed";
char [] destination = { 'T', 'h', 'e', ' ', 'i', 'n', 'i', 't', 'i', 'a', 'l', ' ',
'a', 'r', 'r', 'a', 'y' };
// Print the char array
Console.WriteLine( destination );
// Embed the source string in the destination string
strSource.CopyTo ( 0, destination, 4, strSource.Length );
// Print the resulting array
Console.WriteLine( destination );
strSource = "A different string";
// Embed only a section of the source string in the destination
strSource.CopyTo ( 2, destination, 3, 9 );
// Print the resulting array
Console.WriteLine( destination );
}
}
// The example displays the following output to the console:
// The initial array
// The changed array
// Thedifferentarray
using namespace System;
int main()
{
// Embed an array of characters in a string
String^ strSource = "changed";
array<Char>^destination = {'T','h','e',' ','i','n','i','t','i','a','l',' ','a','r','r','a','y'};
// Print the char array
Console::WriteLine( destination );
// Embed the source string in the destination string
strSource->CopyTo( 0, destination, 4, strSource->Length );
// Print the resulting array
Console::WriteLine( destination );
strSource = "A different string";
// Embed only a section of the source string in the destination
strSource->CopyTo( 2, destination, 3, 9 );
// Print the resulting array
Console::WriteLine( destination );
}
Platforms
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.