File.WriteAllBytes Method (String, Byte())
Creates a new file, writes the specified byte array to the file, and then closes the file. If the target file already exists, it is overwritten.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- path
-
Type:
System.String
The file to write to.
- bytes
-
Type:
System.Byte()
The bytes to write to the file.
| Exception | Condition |
|---|---|
| ArgumentException | path is a zero-length string, contains only white space, or contains one or more invalid characters as defined by InvalidPathChars. |
| ArgumentNullException | path is null or the byte array is empty. |
| PathTooLongException | The specified path, file name, or both exceed the system-defined maximum length. For example, on Windows-based platforms, paths must be less than 248 characters, and file names must be less than 260 characters. |
| DirectoryNotFoundException | The specified path is invalid (for example, it is on an unmapped drive). |
| IOException | An I/O error occurred while opening the file. |
| UnauthorizedAccessException | path specified a file that is read-only. -or- This operation is not supported on the current platform. -or- path specified a directory. -or- The caller does not have the required permission. |
| NotSupportedException | path is in an invalid format. |
| SecurityException | The caller does not have the required permission. |
Given a byte array and a file path, this method opens the specified file, writes the contents of the byte array to the file, and then closes the file.
for access to write to a file or directory. Associated enumeration: FileIOPermissionAccess.Write
Available since 10
.NET Framework
Available since 2.0
Silverlight
Available since 4.0