HTML DOM FileUpload Object
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FileUpload Object
For each instance of an HTML <input type="file"> tag on a form, a FileUpload object is created.
All FileUpload objects are stored in the elements array of the corresponding form. You can access a FileUpload object by indexing this array - either by number (0 represents the first element in a form) or by using the value of the name attribute.
The FileUpload object's properties, methods, and events are described below:
*N*: Netscape (including Mozilla when N6 or higher), *IE*: Internet Explorer, *W3C*: World Wide Web Consortium (Internet Standard)
Properties
Syntax: object.property_name
Property Description N IE W3C
accept Sets or returns a list of content types that the server that processes this form will handle correct - 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 3 4 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 3 4 Yes
id Sets or returns the id of the FileUpload object (In IE 4 this property is read-only) 4 No
name Sets or returns the name of the FileUpload object 3 4 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" 3 4 Yes
value Returns the file name of the FileUpload object after the text is set by user input 3 4 Yes
Methods
Syntax: object.method_name()
Method Description N IE W3C blur() Removes focus from the FileUpload object 3 4 Yes click() Simulates a mouse-click on the FileUpload object 4 No focus() Gives focus to the FileUpload object 3 4 Yes select() Selects the FileUpload object 4 Yes
Events
Syntax: object.event_name="someJavaScriptCode"
Event Description NN IE W3C
onBlur Executes some code when the FileUpload object loses focus 3 4 onClick Executes some code when the FileUpload object gets a mouse click 3 4 onFocus Executes some code when the FileUpload object gets focus 3 4 onSelectStart Executes some code when the FileUpload object gets selected 4
Michael McGrady wrote:
One of the problems you run into with this is that there are differing behaviors between IE and the other browsers.
Michael McGrady wrote:
Leandro Melo wrote:
I'm no expert here, but i think you're gonna have to deal with the tradicional and ordinary file button as it comes. In other words, i don't think it's possible to use an image for this button. That's not because of struts, it's how the browsers implement thier html.
--- "Dean A. Hoover" <[EMAIL PROTECTED]>
escreveu:
I've been reading some interesting methods for using image buttons on forms in place of the familiar "Submit" style browser generated buttons. There is one automatically generated button that I am still puzzled on how to use an image for it, though. That's the one for do file uploading, as in:
<html:form method="POST" enctype="multipart/form-data"> <html:file property="theFile"/> <html:submit value="Upload"/> </html:form>
Any ideas? Dean Hoover
THIS CAN BE DONE. You have to shut off the automagically button and then use another image for a button via JavaScript. I am going to do this too, so let's cooperate on it.
Michael McGrady
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