StreamWriter.Write Method (Char[], Int32, Int32)
Assembly: mscorlib (in mscorlib.dll)
public void Write ( char[] buffer, int index, int count )
public override function Write ( buffer : char[], index : int, count : int )
Parameters
- buffer
A character array containing the data to write.
- index
The index into buffer at which to begin writing.
- count
The number of characters to read from buffer.
| Exception type | Condition |
|---|---|
| buffer is a null reference (Nothing in Visual Basic). | |
| The buffer length minus index is less than count. | |
| index or count is negative. | |
| An I/O error occurs. | |
| AutoFlush is true or the StreamWriter buffer is full, and current writer is closed. | |
| AutoFlush is true or the StreamWriter buffer is full, and the contents of the buffer cannot be written to the underlying fixed size stream because the StreamWriter is at the end the stream. |
This method overrides TextWriter.Write.
The characters are read from buffer beginning at index and continuing through index + (count - 1). All characters are written to the underlying stream unless the end of the underlying stream is reached prematurely. Flush is invoked automatically if AutoFlush is true.
For an example of using this method, see the Example section below. The following table lists examples of other typical or related I/O tasks.
| To do this... | See the example in this topic... |
|---|---|
| Create a text file. | |
| Write to a text file. | |
| Read from a text file. | |
| Append text to a file. | |
| Get the size of a file. | |
| Get the attributes of a file. | |
| Set the attributes of a file. | |
| Determine if a file exists. | |
| Read from a binary file. | |
| Write to a binary file. |
This example writes eight characters from a 13-element array to a file, beginning at the third element of the array.
using namespace System; using namespace System::IO; int main() { FileStream^ sb = gcnew FileStream( "MyFile.txt",FileMode::OpenOrCreate ); array<Char>^b = {'a','b','c','d','e','f','g','h','i','j','k','l','m'}; StreamWriter^ sw = gcnew StreamWriter( sb ); sw->Write( b, 3, 8 ); sw->Close(); }
import System.*;
import System.IO.*;
public class SWBuff
{
public static void main(String[] args)
{
FileStream sb = new FileStream("MyFile.txt", FileMode.OpenOrCreate);
char b[] = {
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm'
};
StreamWriter sw = new StreamWriter(sb);
sw.Write(b, 3, 8);
sw.Close();
} //main
} //SWBuff
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.