From http://www.w3schools.com (Copyright Refsnes Data)
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XForms Actions are handling response to events.
The XForms message element defines a message to be displayed in the XForms user interface.
Look at this simplified example:
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<input ref="fname"> <label>First Name</label> <message level="ephemeral" event="DOMFocusIn"> Input Your First Name </message> </input> |
In the example above, the message "Input Your First Name" should be displayed as a tool tip when the input field gets focus.
The event="DomFocusIn" defines the event to trigger the message.
The level="ephemeral" defines the message to be displayed as a tool tip.
Other values for the level attribute are modal and modeless, defining different types of message boxes.
The XForms setvalue element defines a value to be set in response to an event.
Look at this simplified example:
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<input ref="size"> <label>Size</label> <setvalue value="50" event="xforms-ready"/> </input> |
In the example above, the value 50 will be stored in the "size" input field, when the form opens.
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From http://www.w3schools.com (Copyright Refsnes Data)