WhileSelected Class

This trigger is active while the Selectable is currently selected in the Selection

This attaches to the first Selectable node that is an ancestor of this one.

Consider also the isSelected() function for use in expressions.

Location

Namespace
Fuse.Selection
Package
Fuse.Selection 2.9.1
Show Uno properties and methods

Interface of WhileSelected

Inherited from WhileTrigger

BypassSetActive(bool) uno

Call in situations where the bypassing is forced. This should be rare since during rooting the normal bypass mechanism of the trigger will apply.

Invert : bool ux

Inverts the trigger so it will be active when it would normally be inactive, and vice versa.

Inherited from Trigger

BackwardAnimation : TriggerAnimation ux

Specifies an explicit backward animation instead of using the implied backward animation of the animators involved. Be aware that actions are not part of the animation.

CrossFadeDuration : double ux

If there is a transition between forward/backward playback and two timeilnes are being used (implicit or explicit) this specifies the cross-fade time.

Deactivate uno

Deactivates the trigger (target progress of 0).

Pulse uno

Plays the trigger to progress 1 then back to 0.

RequireLayout(Visual) uno

Indicates the trigger is bound to the layout of a visual. This will keep the trigger in Bypass mode until after the first layout of the element is obtained. This is required since layout does not happen in the same root grouping/update phase as the creation of the element, yet not having a layout should qualify as part of the rooting period.

Inherited from NodeGroupBase

Nodes : IList of Node ux

Nodes to add to the Parent when this trigger is any non-deactivated state (Progress > 0)

Inherited from Node

ContextParent : Node uno

The context parent is the semantic parent of this node. It is where non-UI structure should be resolved, like looking for the DataContext, a Navigation, or other semantic item.

FindNodeByName(Selector, Predicate<Node> (Node)) : Node uno

Finds the first node with a given name that satisfies the given acceptor. The serach algorithm works as follows: Nodes in the subtree are matched first, then it matches the nodes in the subtrees ofthe ancestor nodes by turn all the way to the root. If no matching node is found, the function returns null.

IsRootingStarted : bool uno

Whether rooting of this node has started. Note that even if this property returns true, rooting may not yet be completed for the node. See also IsRootingCompleted.

Name : Selector ux

Run-time name of the node. This property is automatically set using the ux:Name attribute.

OnRooted uno

If you override OnRooted you must call base.OnRooted() first in your derived class. No other processing should happen first, otherwise you might end up in an undefined state.

Inherited from PropertyObject

Inherited from object

Attached UX Attributes

GlobalKey (attached by Resource) : string ux

The ux:Global attribute creates a global resource that is accessible everywhere in UX markup.

Implemented Interfaces

IScriptObject uno

Interface for objects that can have a script engine representation

Examples

The following example uses Selection to create a simple list of options. Tap the items to toggle their selection. Values is bound to a JavaScript Observable in order to track the currently selected items.

<Panel ux:Class="MyItem" Color="#aaa">
    <string ux:Property="Label" />
    <string ux:Property="Value" />

    <Selectable Value="{ReadProperty this.Value}" />
    <Text Value="{ReadProperty this.Label}" />

    <WhileSelected>
        <Change this.Color="#ffc" />
    </WhileSelected>
    <Tapped>
        <ToggleSelection />
    </Tapped>
</Panel>

<JavaScript>
    var Observable = require("FuseJS/Observable");

    var values = Observable();
    var list = Observable(function() {
        return values.toArray().join(",");
    });

    module.exports = {
        values: values,
        list: list
    };
</JavaScript>

<StackPanel>
    <Selection Values="{values}" />

    <MyItem Label="Big Red One" Value="sku-01" />
    <MyItem Label="Small Green Two" Value="sku-02" />
    <MyItem Label="Third Last One" Value="sku-03" />
    <MyItem Label="Four Fore For" Value="sku-04" />
    <MyItem Label="Point Oh-Five" Value="sku-05" />

    <Text Value="Selected:" Margin="0,10,0,0" />
    <Text Value="{list}" />
</StackPanel>