Summary
Tag name: <t:inputFileUpload>
UIComponent class: org.apache.myfaces.custom.fileupload.HtmlInputFileUpload
Tag class: org.apache.myfaces.custom.fileupload.HtmlInputFileUploadTag
Component type: org.apache.myfaces.HtmlInputFileUpload
Component family: javax.faces.Input
Renderer type: org.apache.myfaces.FileUpload
Renderer class: org.apache.myfaces.custom.fileupload.HtmlFileUploadRenderer
Creates a file-selection widget in the rendered page which allows a user to select
a file for uploading to the server.
When the page is selected (using a command component such as commandButton), the currently selected file contents are included in the data posted to the server. The contents are cached somewhere, and an object of type UploadedFile will then be assigned to the property pointed to by the "value" expression of this component.
You must enable the Tomahawk ExtensionsFilter to make this component work (see web.xml).
Also, don't forget to set the form's attribute "enctype" to "multipart/form-data". See "examples/web/fileupload.jsp" for an example!
Unless otherwise specified, all attributes accept static values or EL expressions.
Attributes
Name | Type | Supports EL? | Description |
---|---|---|---|
accept | String | Yes | This attribute specifies a comma-separated list of content types that a server processing this form will handle correctly. User agents may use this information to filter out non-conforming files when prompting a user to select files to be sent to the server (cf. the INPUT element when type="file")." |
accesskey | String | Yes | HTML: Sets the access key for this element. |
align | String | Yes | HTML: Specifies the horizontal alignment of this element. Deprecated in HTML 4.01. |
alt | String | Yes | HTML: Specifies alternative text that can be used by a browser that can't show this element. |
autocomplete | String | Yes | If the value of this attribute is "off", render "off" as the value of the attribute. This indicates that the browser should disable its autocomplete feature for this component. This is useful for components that perform autocompletion and do not want the browser interfering. If this attribute is not set or the value is "on", render nothing. |
binding | org.apache.myfaces.custom.fileupload.HtmlInputFileUpload | Only EL | Identifies a backing bean property (of type UIComponent or appropriate subclass) to bind " + "to this component instance. This value must be an EL expression. |
converter | javax.faces.convert.Converter | Yes | An expression that specifies the Converter for this component.
The value can either be a static value (ID) or an EL expression. When a static id is specified, an instance of the converter type registered with that id is used. When this is an EL expression, the result of evaluating the expression must be an object that implements the Converter interface. |
converterMessage | String | Yes | Text to be displayed to the user as an error message when conversion of a submitted value to the target type
fails.
|
dir | String | Yes | HTML: The direction of text display, either 'ltr' (left-to-right) or 'rtl' (right-to-left). |
disabled | boolean | Yes | HTML: When true, this element cannot receive focus. |
enabledOnUserRole | String | Yes | If user is in given role, this component will be rendered normally. If not, no hyperlink is rendered but all nested tags (=body) are rendered. |
id | String | Yes | Get a string which uniquely identifies this UIComponent within the scope of the nearest ancestor NamingContainer component. The id is not necessarily unique across all components in the current view. |
immediate | boolean | Yes | A boolean value that identifies the phase during which action events should fire.
During normal event processing, action methods and action listener methods are fired during the "invoke application" phase of request processing. If this attribute is set to "true", these methods are fired instead at the end of the "apply request values" phase. |
label | String | Yes | A display name for this component. |
lang | String | Yes | HTML: The base language of this document. |
maxlength | int | Yes | HTML: The maximum number of characters allowed to be entered. |
onblur | String | Yes | HTML: Specifies a script to be invoked when the element loses focus. |
onchange | String | Yes | HTML: Specifies a script to be invoked when the element is modified. |
onclick | String | Yes | HTML: Script to be invoked when the element is clicked. |
ondblclick | String | Yes | HTML: Script to be invoked when the element is double-clicked. |
onfocus | String | Yes | HTML: Specifies a script to be invoked when the element receives focus. |
onkeydown | String | Yes | HTML: Script to be invoked when a key is pressed down over this element. |
onkeypress | String | Yes | HTML: Script to be invoked when a key is pressed over this element. |
onkeyup | String | Yes | HTML: Script to be invoked when a key is released over this element. |
onmousedown | String | Yes | HTML: Script to be invoked when the pointing device is pressed over this element. |
onmousemove | String | Yes | HTML: Script to be invoked when the pointing device is moved while it is in this element. |
onmouseout | String | Yes | HTML: Script to be invoked when the pointing device is moves out of this element. |
onmouseover | String | Yes | HTML: Script to be invoked when the pointing device is moved into this element. |
onmouseup | String | Yes | HTML: Script to be invoked when the pointing device is released over this element. |
onselect | String | Yes | HTML: Specifies a script to be invoked when the element is selected. |
readonly | boolean | Yes | HTML: When true, indicates that this component cannot be modified by the user. The element may receive focus unless it has also been disabled. |
rendered | boolean | Yes | A boolean value that indicates whether this component should be rendered. Default value: true. |
required | boolean | Yes | A boolean value that indicates whether an input value is required.
If this value is true and no input value is provided by a postback operation, then the "requiredMessage" text is registered as a FacesMessage for the request, and validation fails. Default value: false. |
requiredMessage | String | Yes | Text to be displayed to the user as an error message when this component is marked as "required" but no input data is present during a postback (ie the user left the required field blank). |
size | int | Yes | HTML: The initial width of this control, in characters. |
storage | String | Yes | This setting was intended to allow control over how the contents of the
file get temporarily stored during processing.
It allows three options
|
style | String | Yes | HTML: CSS styling instructions. |
styleClass | String | Yes | The CSS class for this element. Corresponds to the HTML 'class' attribute. |
tabindex | String | Yes | HTML: Specifies the position of this element within the tab order of the document. |
title | String | Yes | HTML: An advisory title for this element. Often used by the user agent as a tooltip. |
validator | javax.faces.el.MethodBinding | Only EL | A method-binding EL expression which is invoked during the validation phase for this component.
The invoked method is expected to check the submitted value for this component, and if not acceptable then report a validation error for the component. The method is expected to have the prototype public void aMethod(FacesContext, UIComponent,Object) |
validatorMessage | String | Yes | Text which will be shown if validation fails. |
value | Object | Yes | An EL expression to which an UploadedFile object will be assigned on postback if the user specified a file to upload to the server. |
valueChangeListener | javax.faces.el.MethodBinding | Only EL | A method which is invoked during postback processing for the current view if the submitted value for this
component is not equal to the value which the "value" expression for this component returns.
The phase in which this method is invoked can be controlled via the immediate attribute. |
visibleOnUserRole | String | Yes | If user is in given role, this component will be rendered normally. If not, nothing is rendered and the body of this tag will be skipped. |