ParametrizedAction.ValueChanged Event

Occurs after an end-user has typed and submitted a parameter in the Action’s editor, and after the ParametrizedAction.Value property has been changed in code.

Namespace: DevExpress.ExpressApp.Actions

Assembly: DevExpress.ExpressApp.v23.2.dll

NuGet Package: DevExpress.ExpressApp

Declaration

C#

[Browsable(false)]
public event EventHandler ValueChanged

VB.NET

<Browsable(False)>
Public Event ValueChanged As EventHandler

Event Data

The ValueChanged event's data class is EventArgs.

Remarks

Handle this event to execute custom code in response to a change in the current Parametrized Action’s ParametrizedAction.Value property. If you need to respond to the Action’s execution, handle the ParametrizedAction.Execute event, which is raised after the ValueChanged event.

Note

An end-user can submit the typed parameter by pressing ENTER (in WinForms applications) or the button that accompanies the editor. So, do not use this event if you want to execute your code immediately after a value is selected in the editor. In this case, access the editor as described in the How to: Customize Action Controls topic.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the ValueChanged event.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

xaf-how-to-create-a-custom-action-with-a-custom-control-in-xaf-aspnet-application/CS/Solution28.Module.Web/ParametrizedRangeActionMenuActionItem.cs#L104

    : base(action) {
        action.ValueChanged += action_CurrentValueChanged;
}

VB.NET

xaf-how-to-create-a-custom-action-with-a-custom-control-in-xaf-aspnet-application/VB/Solution28.Module.Web/ParametrizedRangeActionMenuActionItem.vb#L107

    MyBase.New(action)
        AddHandler action.ValueChanged, AddressOf action_CurrentValueChanged
End Sub