Skip to main content

DevExpress v24.2 Update — Your Feedback Matters

Our What's New in v24.2 webpage includes product-specific surveys. Your response to our survey questions will help us measure product satisfaction for features released in this major update and help us refine our plans for our next major release.

Take the survey Not interested

PdfViewer.FormFieldValueChanging Event

Occurs before a new form field value is posted.

Namespace: DevExpress.XtraPdfViewer

Assembly: DevExpress.XtraPdfViewer.v24.2.dll

NuGet Package: DevExpress.Win.PdfViewer

#Declaration

public event PdfFormFieldValueChangingEventHandler FormFieldValueChanging

#Event Data

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

Property Description
Cancel Gets or sets a value indicating whether the event should be canceled. Inherited from CancelEventArgs.
FieldName Gets the name of the form field.
NewValue Gets or sets a new value of the form field.
OldValue Gets the form field’s previous value.

#Remarks

The FormFieldValueChanging event fires when the field editor loses focus: the user clicked on any other place in the document, pressed ENTER or TAB.

Handle this event to cancel changing the form field value.

See Also