System.Web.HttpResponse.WriteFile Method

Writes the specified file directly to an HTTP response output stream.

Syntax

public void WriteFile (IntPtr fileHandle, long offset, long size)

Parameters

fileHandle
The file handle of the file to write to the HTTP output stream.
offset
The byte position in the file where writing will start.
size
The number of bytes to write to the output stream.

Remarks

When this method is used with large files, calling the method might throw an exception. The size of the file that can be used with this method depends on the hardware configuration of the Web server. For more information, see article 812406, "PRB: Response.WriteFile Cannot Download a Large File" on the tp://go.microsoft.com/fwlink/?linkid=149903 Web site.

Requirements

Namespace: System.Web
Assembly: System.Web (in System.Web.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0