SetFormFieldFileSelect Method (GdPicturePDF)

In This Topic

Sets the FileSelect 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 entered in the text field represents the pathname of a file whose content are to be submitted as the value of the text field. By submission it is meant the use of the submit-form action, unfortunately the GdPicturePDF doesn't support this feature yet. The current value of the specified text field always represents the text entered in this field, please do not confuse it with the content of the file, whose pathname represents the text field value.

Syntax

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

'Declaration
 
Public Function SetFormFieldFileSelect( _
   ByVal FieldId As Integer, _
   ByVal FileSelect As Boolean _
) As GdPictureStatus

public GdPictureStatus SetFormFieldFileSelect( 
   int FieldId,
   bool FileSelect
)

public function SetFormFieldFileSelect( 
    FieldId: Integer;
    FileSelect: Boolean
): GdPictureStatus;

public function SetFormFieldFileSelect( 
   FieldId : int,
   FileSelect : boolean
) : GdPictureStatus;

public: GdPictureStatus SetFormFieldFileSelect( 
   int FieldId,
   bool FileSelect
)

public:
GdPictureStatus SetFormFieldFileSelect( 
   int FieldId,
   bool FileSelect
)

Parameters

FieldId: A unique form field identifier specifying a required form field object. You can obtain this identifier using these methods: AddTextFormField(Single,Single,Single,Single,String,String,Boolean,String,Single,Byte,Byte,Byte), GetFormFieldId or GetFormFieldChildID.
FileSelect: Set this parameter to true, if you want to enable the FileSelect 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.

Likewise, be aware that the GdPicturePDF class doesn't support the submit-form action yet.

Example

How to specify that the newly added text form field is used for file selection.

VB.NET
C#

Dim caption As String = "Example: SetFormFieldFileSelect"
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.PdfStandardFontHelvetica)
        If gdpicturePDF.GetStat() = GdPictureStatus.OK Then
            If (gdpicturePDF.SetTextSize(16) = GdPictureStatus.OK) AndAlso
               (gdpicturePDF.DrawText(fontResName, 1, 1, "Enter filename") = GdPictureStatus.OK) Then
                Dim formID As Integer = gdpicturePDF.AddTextFormField(1, 1.5F, 10, 1, "Filename", "", False, fontResName, 14, 165, 42, 42)
                If gdpicturePDF.GetStat() = GdPictureStatus.OK Then
                    If (gdpicturePDF.SetFormFieldBackgroundColor(formID, 255, 228, 196) <> GdPictureStatus.OK) OrElse
                       (gdpicturePDF.SetFormFieldBorderColor(formID, 255, 69, 0) <> GdPictureStatus.OK) OrElse
                       (gdpicturePDF.SetFormFieldDoNotScroll(formID, False) <> GdPictureStatus.OK) OrElse
                       (gdpicturePDF.SetFormFieldDoNotSpellCheck(formID, True) <> GdPictureStatus.OK) OrElse
                       (gdpicturePDF.SetFormFieldFileSelect(formID, True) <> GdPictureStatus.OK) Then
                        MessageBox.Show("Setting 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
                If gdpicturePDF.GetStat() = GdPictureStatus.OK Then
                    If gdpicturePDF.SaveToFile("forms_textfield.pdf") = GdPictureStatus.OK Then
                        MessageBox.Show("The example has been followed successfully and the file has been saved.", caption)
                    Else
                        MessageBox.Show("The example has been followed successfully, but the file can't be saved. Status: " + gdpicturePDF.GetStat().ToString(), caption)
                    End If
                End If
            Else
                MessageBox.Show("The SetTextSize()/DrawText() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
            End If
        Else
            MessageBox.Show("The AddStandardFont() method 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: SetFormFieldFileSelect";
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.PdfStandardFontHelvetica);
        if (gdpicturePDF.GetStat() == GdPictureStatus.OK)
        {
            if ((gdpicturePDF.SetTextSize(16) == GdPictureStatus.OK) &&
                (gdpicturePDF.DrawText(fontResName, 1, 1, "Enter filename") == GdPictureStatus.OK))
            {
                int formID = gdpicturePDF.AddTextFormField(1, 1.5f, 10, 1, "Filename", "", false, fontResName, 14, 165, 42, 42);
                if (gdpicturePDF.GetStat() == GdPictureStatus.OK)
                {
                    if ((gdpicturePDF.SetFormFieldBackgroundColor(formID, 255, 228, 196) != GdPictureStatus.OK) ||
                        (gdpicturePDF.SetFormFieldBorderColor(formID, 255, 69, 0) != GdPictureStatus.OK) ||
                        (gdpicturePDF.SetFormFieldDoNotScroll(formID, false) != GdPictureStatus.OK) ||
                        (gdpicturePDF.SetFormFieldDoNotSpellCheck(formID, true) != GdPictureStatus.OK) ||
                        (gdpicturePDF.SetFormFieldFileSelect(formID, true) != GdPictureStatus.OK))
                    {
                        MessageBox.Show("Setting 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)
                {
                    if (gdpicturePDF.SaveToFile("forms_textfield.pdf") == GdPictureStatus.OK)
                        MessageBox.Show("The example has been followed successfully and the file has been saved.", caption);
                    else
                        MessageBox.Show("The example has been followed successfully, but the file can't be saved. Status: " + gdpicturePDF.GetStat().ToString(), caption);
                }
            }
            else
                MessageBox.Show("The SetTextSize()/DrawText() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
        }
        else
            MessageBox.Show("The AddStandardFont() method 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
GetFormFieldFileSelect 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