PdfViewer.FormFieldEditorShowing Event

Occurs before the form field editor is activated.

Namespace: DevExpress.XtraPdfViewer

Assembly: DevExpress.XtraPdfViewer.v22.1.dll

NuGet Package: DevExpress.Win.PdfViewer

Declaration

C#

public event PdfFormFieldEditorShowingEventHandler FormFieldEditorShowing

VB.NET

Public Event FormFieldEditorShowing As PdfFormFieldEditorShowingEventHandler

Event Data

The FormFieldEditorShowing event's data class is PdfFormFieldEditorShowingEventArgs. 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 form field name.
Value	Retrieves the form field value.

Remarks

Handle the FormFieldEditorShowing event to obtain the form field’s value before the editor is opened and cancel editing if necessary.

The code sample below shows how to disable a form field editor with a specific name:

C#

using DevExpress.XtraPdfViewer;

private void PdfViewer_FormFieldEditorShowing(object sender, PdfFormFieldEditorShowingEventArgs e)
{
    if (e.FieldName == "Field1")
        e.Cancel= true;
}

VB.NET

Imports DevExpress.XtraPdfViewer

Private Sub PdfViewer_FormFieldEditorShowing(ByVal sender As Object, ByVal e As PdfFormFieldEditorShowingEventArgs)
  If e.FieldName = "Field1" Then
    e.Cancel= True
  End If
End Sub