FileUpload Object
For each instance of an <input type="file"> tag in an HTML
form, a FileUpload object is created.
You can access a FileUpload object by indexing the elements
array (by number or name) of the corresponding form or by using
getElementById().
IE: Internet Explorer, F: Firefox, N:
Netscape, W3C: World Wide Web Consortium (Internet
Standard).
FileUpload Object Properties
| Property |
Description |
IE |
F |
N |
W3C |
| accept |
Sets or returns a list of content
types, which the server processing this form will handle
correctly |
- |
|
|
Yes |
| accessKey |
Sets or returns the keyboard key to
access the FileUpload object |
4 |
|
|
Yes |
| align |
Sets or returns the alignment of the
FileUpload object according to the surrounding text |
- |
|
|
Yes |
| alt |
Sets or returns an alternate text to
display if the browser does not support <input
type="file"> |
- |
|
|
Yes |
| defaultValue |
Sets or returns the initial value of
the FileUpload object |
4 |
1 |
3 |
Yes |
| disabled |
Sets or returns whether or not the
FileUpload object should be disabled |
4 |
|
|
Yes |
| form |
Returns a reference to the form that
contains the FileUpload object |
4 |
1 |
3 |
Yes |
| id |
Sets or returns the id of the
FileUpload object (In IE 4 this property is read-only) |
4 |
1 |
|
No |
| name |
Sets or returns the name of the
FileUpload object |
4 |
1 |
3 |
Yes |
| tabIndex |
Sets or returns the index that defines
the tab order for the FileUpload object |
4 |
|
|
Yes |
| type |
Returns the type of the form element.
For a FileUpload object it will be "file" |
4 |
1 |
3 |
Yes |
| value |
Returns the file name of the FileUpload
object after the text is set by user input |
4 |
1 |
3 |
Yes |
FileUpload Object Methods
| Method |
Description |
IE |
F |
N |
W3C |
| blur() |
Removes focus from the FileUpload
object |
4 |
1 |
3 |
Yes |
| click() |
Simulates a mouse-click on the
FileUpload object |
4 |
|
|
No |
| focus() |
Gives focus to the FileUpload object |
4 |
1 |
3 |
Yes |
| select() |
Selects the FileUpload object |
4 |
|
|
Yes |
FileUpload Object Events
Syntax: object.event_name="someJavaScriptCode"
| Event |
Description |
IE |
F |
N |
W3C |
| onBlur |
Executes some code when the FileUpload
object loses focus |
4 |
1 |
3 |
|
| onClick |
Executes some code when the FileUpload
object gets a mouse click |
4 |
1 |
3 |
|
| onFocus |
Executes some code when the FileUpload
object gets focus |
4 |
1 |
3 |
|
| onSelectStart |
Executes some code when the FileUpload
object gets selected |
4 |
|
|
|
|
