This property defines the maximum number of bytes that are written to disk or into the database on a per-filebasis.

This important property prevents malicious users from filling your web server's hard disk.

If a user uploads a file larger than MaxBytes, no error is reported. Instead, writing stops at exactly that value. For example, if MaxBytes is set to 200, and the user uploads a file that is 300 bytes long, only the first 200 bytes are written to the web server's hard disk.

Each individual file in the upload has this limit. For example, if there are three files in a single form and MaxBytes is set to 500:

Setting MaxBytes to zero (0) implies no limit. This is the default value.

You can also use MaxBytes in conjunction with the SaveBinaryAs method .

For discussion and code samples on limiting the upload size, please see:

• Programmer's Guide for ASP: Limiting the Upload Size
• Programmer's Guide for ASP.NET: Limiting the Upload Size

See also, MaxBytesToCancel.