Dec 01

 Select

The Select widget provides a way for users to select an item from a drop-down list of choices. The selection can be captured through the displayValue property.

The number of records fetched will be limited by the “Records per Request” property of the underlying Variable to which the Select widget is bound to. Refer to the corresponding Variable to change this value.

Properties

Property Description
Name The name is a unique identifier for Select widget.
Placeholder A placeholder is text to show in the editor when there is no value. A common use of this is a search box that says in faint gray italicized text “Search…” which disappears as soon as the user starts to edit the text box. This is a useful alternative to a caption if you are constrained in space and asking for something simple of the user.
Accessibility
Hint Any text or an HTML you enter for this property will be shown as a tooltip if the mouse hovers over this widget for 1.5 seconds.
Tab index The tab index attribute specifies the tab order of an element. You can use this property to change the default tabbing order for widget access using the tab key. The value can range from 0 to 32767. The default is 0 and -1 makes the element non-focusable.

NOTE: In Safari browsers, by default, Tab highlights only text fields. To enable Tab functionality, in Safari Browser from Preferences -> Advanced -> Accessibility set the option “Press Tab to highlight each item on a webpage”.

Shortcut key The shortcut key property specifies a shortcut key to activate/focus an element. (*See below for details)
Layout
Width The width of your widget can be specified in px or % (i.e 50px, 75%).
Height The height of your widget can be specified in px or % (i.e 50px, 75%).
Default Value
Value This is the default value to display value for an editor widget. Note that the display value is just what the user sees initially, and is not always the dataValue returned by the widget.
Dataset
Value Set this property to a variable to populate the list of values to display.
Data field This property sets the dataValue to be returned by a select editor when the list is populated using the dataSet property.
Display field This property sets the displayValue to show in the select editor when the list is populated using the dataSet property.
Display Expression This is an advanced property that gives more control over what is displayed in the drop-down select list. A Display Expression uses a Javascript expression to format exactly what is shown.
Order by This allows for multiple selections for ordering the display of rows based on fields in asc or desc order – up arrow for asc and down arrow for desc
Validation
Required A required editor in wm.LiveForm may refuse to save without a required field.
Behavior
Auto Focus This property makes the element get focused automatically when the page loads.
Read Only Selecting this checkbox property prevents the user from being able to change the data value of a widget.
Multiple Enable/Disable to switch between Multiple/Single File Upload Widget.
Show Showing determines whether or not a component is visible. It is a bindable property.
Load on Demand
(visible only when show property is bound to a variable)
When this property is set and show property is bound, the initialization of the widget will be deferred till the widget becomes visible. This behavior improves the load time. Use this feature with caution, as it has a downside (as we will not be able to interact with the widget through script until the widget is initialized). When show property is not bound the widget will be initialized immediately.
Disabled If the disabled property is true (checked) the value of the editor cannot change. The widget becomes display-only.

Events

Event Description
Change This event handler is called each time your element’s value changes. By default, it is set to invoke $root.changeLocale which would change the language rendered in the application.
On focus This event handler is called each time your element is focused.
On blur This event handler is called each time your focus leaves your element.
Mouse Events
On click This event handler is called whenever the click event is triggered on a widget.
On mouse enter This event handler is called whenever the mouse enters the widget.
On mouse leave This event handler is called whenever the mouse leaves the widget.
Touch Events
On tap This event handler is called whenever the tap event is triggered on a widget.
Keyboard Events
On key down This event handler is called whenever a key is pressed down.
On key press This event handler is called whenever a key is pressed.
On key up This event handler is called whenever a key is released.

Shortcut key: The shortcut key property specifies a shortcut key to click the button. The way of accessing the shortcut key is varying in different browsers:

Browser Shortcut key Trigger
Internet Explorer [Alt] + shortcut key
Chrome [Alt] + shortcut key (Windows/Linux)
[Control] [Alt] + shortcut key (MAC)
Firefox [Alt] [Shift] + shortcut key (Windows/Linux)
[Control] [Alt] + shortcut key (MAC)

 
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