WizardControl.SelectedPageChanging Event

Enables you to control whether a wizard page can be selected.

Namespace: DevExpress.XtraWizard

Assembly: DevExpress.XtraWizard.v23.2.dll

NuGet Package: DevExpress.Win

Declaration

C#

public event WizardPageChangingEventHandler SelectedPageChanging

VB.NET

Public Event SelectedPageChanging As WizardPageChangingEventHandler

Event Data

The SelectedPageChanging event's data class is WizardPageChangingEventArgs. The following properties provide information specific to this event:

Property	Description
Cancel	Gets or sets whether the operation must be canceled.
Direction	Gets a value that indicates in which direction a user navigates between pages. Inherited from WizardPageChangedEventArgs.
Page	Gets or sets the current wizard page.
PrevPage	Gets the previously active wizard page. Inherited from WizardPageChangedEventArgs.

Remarks

The SelectedPageChanging event is raised when a new page is about to be selected. This occurs when an end-user clicks the Next or Back button, or the page is selected in code.

Within the SelectedPageChanging event handler you can do the following:

• cancel the operation by setting the WizardPageChangingEventArgs.Cancel property to true;
• initialize settings of the newly selected wizard page, which is returned by the WizardPageChangingEventArgs.Page property;
• implement custom navigation (plot-branched navigation). Use the WizardPageChangingEventArgs.Page property to select the required wizard page. The previously selected page is returned by the WizardPageChangedEventArgs.PrevPage property. To obtain the direction in which a user navigates between wizard pages, use the Direction property.

To learn more, see Page Events.

C#

private void wizardControl1_SelectedPageChanging(object sender,
DevExpress.XtraWizard.WizardPageChangingEventArgs e) {
    if(e.Page == wpLongText)
        e.Page.AllowNext = ceLongText.Checked;
    if(e.PrevPage == wpQuestion && e.Direction == Direction.Forward) 
        if(ceYesAnswer.Checked) e.Page = wpProgress;
    if(e.PrevPage == wpProgress && e.Direction == Direction.Backward)
        e.Page = wpQuestion;
}