SetFormFieldPassword Method (GdPicturePDF)

In This Topic

Sets the Password flag of a required form field, here a text field, that is specified by its unique form field's identifier and it is related to the currently loaded PDF document. As stated, this flag is only specific to text fields, so this method is explicitly applicable to text form field objects.

If this flag is set, then the text field is intended for entering a secure password that should not be echoed visibly to the screen. Instead, the characters typed from the keyboard should be displayed in some unreadable form, usually asterisks.

Syntax

Visual Basic
C#
Delphi
JScript
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Function SetFormFieldPassword( _
   ByVal FieldId As Integer, _
   ByVal Password As Boolean _
) As GdPictureStatus

public GdPictureStatus SetFormFieldPassword( 
   int FieldId,
   bool Password
)

public function SetFormFieldPassword( 
    FieldId: Integer;
    Password: Boolean
): GdPictureStatus;

public function SetFormFieldPassword( 
   FieldId : int,
   Password : boolean
) : GdPictureStatus;

public: GdPictureStatus SetFormFieldPassword( 
   int FieldId,
   bool Password
)

public:
GdPictureStatus SetFormFieldPassword( 
   int FieldId,
   bool Password
)

Parameters

FieldId: A unique form field identifier specifying a required form field object. You can obtain this identifier using these methods: GdPicturePDF.AddTextFormField, GdPicturePDF.GetFormFieldId or GdPicturePDF.GetFormFieldChildID.
Password: Set this parameter to true, if you want to enable the Password flag, otherwise set it to false to disable it.

Return Value

A member of the GdPictureStatus enumeration. If the method has been successfully followed, then the return value is GdPictureStatus.OK.

We strongly recommend always checking this status first.

Remarks

This method is only allowed for use with non-encrypted documents.

Just to remind you that this method is only meaningful for text fields, otherwise it will fail.

Example

How to utilize the Password flag when creating the text form field intended for adding a password.

VB.NET
C#

Dim caption As String = "Example: SetFormFieldPassword"
Dim gdpicturePDF As GdPicturePDF = New GdPicturePDF()
If (gdpicturePDF.NewPDF() = GdPictureStatus.OK) AndAlso
   (gdpicturePDF.NewPage(PdfPageSizes.PdfPageSizeA4) = GdPictureStatus.OK) Then
    gdpicturePDF.SetOrigin(PdfOrigin.PdfOriginTopLeft)
    gdpicturePDF.SetMeasurementUnit(PdfMeasurementUnit.PdfMeasurementUnitCentimeter)
    'Please always select the required page before adding a form field.
    If gdpicturePDF.SelectPage(1) = GdPictureStatus.OK Then
        Dim fontResName As String = gdpicturePDF.AddStandardFont(PdfStandardFont.PdfStandardFontCourierOblique)
        If (gdpicturePDF.GetStat() = GdPictureStatus.OK) AndAlso
           (gdpicturePDF.SetTextSize(16) = GdPictureStatus.OK) AndAlso
           (gdpicturePDF.DrawText(fontResName, 1, 1, "Enter your name") = GdPictureStatus.OK) AndAlso
           (gdpicturePDF.DrawText(fontResName, 1, 4, "Enter your password") = GdPictureStatus.OK) Then
            'Adding the name text field.
            Dim formID As Integer = gdpicturePDF.AddTextFormField(1, 1.5F, 10, 1, "Name", "", False, fontResName, 16, 165, 42, 42)
            If gdpicturePDF.GetStat() = GdPictureStatus.OK Then
                If (gdpicturePDF.SetFormFieldBackgroundColor(formID, 255, 255, 255) <> GdPictureStatus.OK) OrElse
                   (gdpicturePDF.SetFormFieldBorderColor(formID, 0, 0, 0) <> GdPictureStatus.OK) OrElse
                   (gdpicturePDF.SetFormFieldDoNotScroll(formID, True) <> GdPictureStatus.OK) OrElse
                   (gdpicturePDF.SetFormFieldDoNotSpellCheck(formID, True) <> GdPictureStatus.OK) Then
                    MessageBox.Show("Setting form field properties has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
                Else
                    MessageBox.Show("The AddTextFormField() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
                End If
            End If
            If gdpicturePDF.GetStat() = GdPictureStatus.OK Then
                'Adding the password text field.
                formID = gdpicturePDF.AddTextFormField(1, 4.5F, 10, 1, "Password", "", False, fontResName, 16, 165, 42, 42)
                If gdpicturePDF.GetStat() = GdPictureStatus.OK Then
                    If (gdpicturePDF.SetFormFieldBackgroundColor(formID, 255, 255, 255) = GdPictureStatus.OK) AndAlso
                       (gdpicturePDF.SetFormFieldBorderColor(formID, 0, 0, 0) = GdPictureStatus.OK) AndAlso
                       (gdpicturePDF.SetFormFieldDoNotScroll(formID, True) = GdPictureStatus.OK) AndAlso
                       (gdpicturePDF.SetFormFieldDoNotSpellCheck(formID, True) = GdPictureStatus.OK) AndAlso
                       (gdpicturePDF.SetFormFieldPassword(formID, True) = GdPictureStatus.OK) Then
                        Dim message As String = "The example has been followed successfully"
                        If gdpicturePDF.SaveToFile("forms_textfield.pdf") = GdPictureStatus.OK Then
                            message = message + " and the file has been saved successfully."
                        Else
                            message = message + ", but the file can't be saved. Status: " + gdpicturePDF.GetStat().ToString()
                        End If
                        MessageBox.Show(message, caption)
                    Else
                        MessageBox.Show("Setting form field properties has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
                    End If
                Else
                    MessageBox.Show("The AddTextFormField() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
                End If
            End If
        Else
            MessageBox.Show("The AddStandardFont() method or drawing has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
        End If
    Else
        MessageBox.Show("The SelectPage() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
    End If
Else
    MessageBox.Show("The file can't be created.", caption)
End If
gdpicturePDF.Dispose()

string caption = "Example: SetFormFieldPassword";
GdPicturePDF gdpicturePDF = new GdPicturePDF();
if ((gdpicturePDF.NewPDF() == GdPictureStatus.OK) &&
    (gdpicturePDF.NewPage(PdfPageSizes.PdfPageSizeA4) == GdPictureStatus.OK))
{
    gdpicturePDF.SetOrigin(PdfOrigin.PdfOriginTopLeft);
    gdpicturePDF.SetMeasurementUnit(PdfMeasurementUnit.PdfMeasurementUnitCentimeter);
    //Please always select the required page before adding a form field.
    if (gdpicturePDF.SelectPage(1) == GdPictureStatus.OK)
    {
        string fontResName = gdpicturePDF.AddStandardFont(PdfStandardFont.PdfStandardFontCourierOblique);
        if ((gdpicturePDF.GetStat() == GdPictureStatus.OK) &&
            (gdpicturePDF.SetTextSize(16) == GdPictureStatus.OK) &&
            (gdpicturePDF.DrawText(fontResName, 1, 1, "Enter your name") == GdPictureStatus.OK) &&
            (gdpicturePDF.DrawText(fontResName, 1, 4, "Enter your password") == GdPictureStatus.OK))
        {
            //Adding the name text field.
            int formID = gdpicturePDF.AddTextFormField(1, 2, 10, 1, "Name", "", false, fontResName, 16, 165, 42, 42);
            if (gdpicturePDF.GetStat() == GdPictureStatus.OK)
            {
                if ((gdpicturePDF.SetFormFieldBackgroundColor(formID, 255, 255, 255) != GdPictureStatus.OK) ||
                    (gdpicturePDF.SetFormFieldBorderColor(formID, 0, 0, 0) != GdPictureStatus.OK) ||
                    (gdpicturePDF.SetFormFieldDoNotScroll(formID, true) != GdPictureStatus.OK) ||
                    (gdpicturePDF.SetFormFieldDoNotSpellCheck(formID, true) != GdPictureStatus.OK))
                    MessageBox.Show("Setting form field properties has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
            }
            else
                MessageBox.Show("The AddTextFormField() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
            if (gdpicturePDF.GetStat() == GdPictureStatus.OK)
            {
                //Adding the password text field.
                formID = gdpicturePDF.AddTextFormField(1, 4, 10, 1, "Password", "", false, fontResName, 16, 165, 42, 42);
                if (gdpicturePDF.GetStat() == GdPictureStatus.OK)
                {
                    if ((gdpicturePDF.SetFormFieldBackgroundColor(formID, 255, 255, 255) == GdPictureStatus.OK) &&
                        (gdpicturePDF.SetFormFieldBorderColor(formID, 0, 0, 0) == GdPictureStatus.OK) &&
                        (gdpicturePDF.SetFormFieldDoNotScroll(formID, true) == GdPictureStatus.OK) &&
                        (gdpicturePDF.SetFormFieldDoNotSpellCheck(formID, true) == GdPictureStatus.OK) &&
                        (gdpicturePDF.SetFormFieldPassword(formID, true) == GdPictureStatus.OK))
                    {
                        string message = "The example has been followed successfully";
                        if (gdpicturePDF.SaveToFile("forms_textfield.pdf") == GdPictureStatus.OK)
                            message = message + " and the file has been saved successfully.";
                        else
                            message = message + ", but the file can't be saved. Status: " + gdpicturePDF.GetStat().ToString();
                        MessageBox.Show(message, caption);
                    }
                    else
                        MessageBox.Show("Setting form field properties has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
                }
                else
                    MessageBox.Show("The AddTextFormField() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
            }
        }
        else
            MessageBox.Show("The AddStandardFont() method or drawing has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
    }
    else
        MessageBox.Show("The SelectPage() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
}
else
    MessageBox.Show("The file can't be created.", caption);
gdpicturePDF.Dispose();

Reference

GdPicturePDF Class
GdPicturePDF Members
GetFormFieldPassword Method
GetFormFieldsCount Method
GetFormFieldId Method
GetFormFieldChildID Method
GetFormFieldType Method
GetFormFieldValue(Int32) Method
AddTextFormField(Single,Single,Single,Single,String,String,Boolean,String,Single,Byte,Byte,Byte) Method