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Action Visbility
Controlling the visibility of actions in Konstrukt, the back office UI builder for Umbraco.
By default actions are not visible in the UI and you must expressly define when and were an action should display. This can be achived in two ways, either on the action definition itself or at the point of registration on the collections config.

To define the default visbility of an action at the action level you can do this by overriding the IsVisible method of the KonstruktAction<> base class.
// Example
public class MyAction : KonstruktAction<KonstruktActionResult>
{
...
public override bool IsVisible(KonstruktActionVisibilityContext ctx)
{
return ctx.ActionType == KonstruktActionType.Bulk
|| ctx.ActionType == KonstruktActionType.Row;
}
...
}
The IsVisible method is passed a KonstruktActionVisibilityContext which you should use to decide whether the action should display, returning true if it should, or false if it should not. See Action visibility context bellow for more info.

Overriding an actions visibility is controlled via the collections configuration.

Adds an action of the given type to the collection with the given visibility.
// Example
collectionConfig.AddAction<ExportMenuAction>(actionConfig => actionConfig
.SetVisibility(x => x.ActionType == KonstruktActionType.Bulk
|| x.ActionType == KonstruktActionType.Row)
);

Adds an action of the given type to the collection with the given visibility.
// Example
collectionConfig.AddAction(typeof(ExportMenuAction), actionConfig => actionConfig
.SetVisibility(x => x.ActionType == KonstruktActionType.Bulk
|| x.ActionType == KonstruktActionType.Row)
);

Adds the given action to the collection with the given visibility.
// Example
collectionConfig.AddAction(action, actionConfig => actionConfig
.SetVisibility(x => x.ActionType == KonstruktActionType.Bulk
|| x.ActionType == KonstruktActionType.Row)
);

When controlling the visibility of an action you will be given a KonstruktActionVisibilityContext object from which you can decide whether to show the action or not. The visibility context contains two key pieces of information on which you can base this decision.

The action type property is an enum property that define which area of the UI it is that wishes to access this action. Enabling an action to display for a given action type will determine where an action is displayed.

The ContainerMenu action type determines that the action will be displayed in both the tree of the collection as well as it's list view actions menu.
Container Menu

The EntityMenu action type determines that the action will be displayed in the actions menu of a collection editor UI.
Entity Menu

The Bulk action type determines that the action will be displayed in the collection list view bulk actions menu.
Bulk Actions

The Row action type determines that the action will be displayed in the collection list view action row menu.
Row Actions

The Save action type determines that the action will be displayed as a sub button in an entity editors save button. All Save action types trigger a save before the action is executed and so to convey this, all Save action type button labels are prefixed Save & [Action Name]
Save Actions

The user groups collection contains a list of Umbraco IReadOnlyUserGroup objects for the current logged in back office user and allows you to control the visibility of actions for given user group members.
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Controlling the default action visibility
Overriding an actions visibility
Action visibility context
ActionType
UserGroups