Currently, any newly-created Setter in the Interactivity/Setters Panel is given a default name that provides some indication as to its mechanism. For example "IsMouseOver=True".

However in the case of Triggers, these are only named [TriggerType] without any detail as to the function they perform. This results in Triggers being essentially indistinguishable in the Triggers Panel.

Whilst each Trigger does offer the ability to input a custom, descriptive name to address this, and this functionality absolutely needs to be conserved, this ticket is moreso about providing more useful, descriptive defaults to help users in cases when they are not manually-renamed.

Note that in the case of users who are making use of their own custom Triggers, responsibility will be on them to populate their metadata with their desired syntax for this, otherwise they will be left with the TriggerType name syntax as it currently functions as the default

Each Trigger Type offers different functionality; find below a first proposal for their syntax:

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DATAEVENT TRIGGER

Syntax: [On {DataSource} {Event}]

Example: [On SelectedItem, ElementName=PlayerList MyCustomEvent]

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DATA TRIGGER

Syntax: [On {Binding} {Comparison} {Value}]

Example: [On BackgroundBorder.ActualHeight = 512]

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EVENT TRIGGER

Syntax: [On {Source} {Event}]

Example: [On BackgroundBorder Loaded]

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GAMEPAD TRIGGER

Syntax: [On {FiredOn} '{Button}']

Example: [On Down 'Accept']

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KEYTRIGGER

Syntax: [On {FiredOn} '{ModifierKey}' {+} '{Key}']

Example: [On Down 'Alt' + 'W']

Note: Omit '{ModifierKey}' and {+} if no Modifier Key specified.

Example: [On Down 'W'}

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MOUSEHWEEL TRIGGER

Syntax: [On MouseWheel {Direction}]

Example: [On MouseWheel Down]

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PROPERTYCHANGED TRIGGER

Syntax: [On {Binding} Changed]

Example: [On BackgroundBorder.ActualHeight Changed]

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STORYBOARDCOMPLETED TRIGGER

Syntax: [On {StoryboardName} Completed]

Example: [On MyStorboard Completed]

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TIMER TRIGGER

Syntax: [On {Source} {Event} + {TotalTicks}]

Example: [On BackgroundBorder Loaded + 1]