CSS
Hover the classes to see matching element(s) in the example
xfTrigger matches an Element that represents a XForms input element
xfControl matches an Element that represents a XForms control
xfLabel matches the label part of an XForms control
xfValue matches the widget part of an XForms control
xfReadOnly matches a xforms control that is currently readonly
xfReadWrite matches a xforms control that is currently writable
xfRequired matches a xforms control that is currently required
xfOptional matches a xforms control that is currently optional
xfEnabled matches a xforms control that is currently relevant (enabled)
xfDisabled matches a xforms control that is currently disabled (can't be visualized here as the control gets hidden)
xfValid matches a xforms control that is currently valid
xfInvalid matches a xforms control that is currently invalid

# Trigger control rendered as button with an image specified by the src-attribute

This form control is similar to the HTML element button and allows for user-triggered actions. This form control may also be used to construct other custom form controls.

A trigger with a src attribute pointing to a image URL is rendered as a button with an image.

| XForms 1.1 Links
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## Example

a Hint for this control help for trigger1 The image trigger was clicked
readonly relevant

## XForms Markup

    <xf:trigger id="trigger1" ref="trigger1/value" src="images/bf_logo_67x27.png">
        <xf:label></xf:label>
        <xf:hint>a Hint for this control</xf:hint>
        <xf:help>help for trigger1</xf:help>
        <xf:message>The image trigger was clicked</xf:message>
    </xf:trigger>