SetFormFieldDefaultChecked(Int32,Int32) Method
In This Topic
Sets, if a required form field, here a child radio button in a group, is checked by default. The radio button group is specified by its unique form field's identifier and it is related to the currently loaded PDF document. As said, this method is only applicable to radio buttons.
If this flag is set for the specified child radio button in a group, then this child radio button is checked by default in this group.
As only one child radio button in a group may be checked at a time (assuming the RadiosInUnison flag is not set), the currently selected child radio button is automatically unchecked, it means its checked state is set to Off. You can completely remove the currently defined default selection in a radio button group using the GdPicturePDF.ResetFormFieldDefaultCheckedState method.
Syntax
'Declaration
Public Overloads Function SetFormFieldDefaultChecked( _
ByVal As Integer, _
ByVal As Integer _
) As GdPictureStatus
public GdPictureStatus SetFormFieldDefaultChecked(
int ,
int
)
public function SetFormFieldDefaultChecked(
: Integer;
: Integer
): GdPictureStatus;
public function SetFormFieldDefaultChecked(
: int,
: int
) : GdPictureStatus;
public: GdPictureStatus SetFormFieldDefaultChecked(
int ,
int
)
public:
GdPictureStatus SetFormFieldDefaultChecked(
int ,
int
)
Parameters
- FieldId
- A unique form field identifier specifying a required form field object. You can obtain this identifier using these methods: GdPicturePDF.AddRadioButtonFormField, GdPicturePDF.GetFormFieldId or GdPicturePDF.GetFormFieldChildID.
- ChildIdx
- The index of the required child radio button in a group. It must be a value from 0 to GdPicturePDF.GetFormFieldChildCount-1.
It is simply a sequence index of a radio button in a group, it does not correspond to the unique form field's identifier.
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.
Example
How to check the last child radio button in a group to be checked by default in this group.
Dim caption As String = "Example: SetFormFieldDefaultChecked"
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.PdfStandardFontTimesItalic)
If (gdpicturePDF.GetStat() = GdPictureStatus.OK) AndAlso
(gdpicturePDF.DrawText(fontResName, 1, 0.8F, "What colour do you prefer for your T-shirt?") = GdPictureStatus.OK) Then
Dim formID As Integer = 0
Dim buttonName As String = "RadioButton"
Dim colors As String() = New String() {"white", "yellow", "red", "blue", "green", "black"}
For i As Integer = 0 To colors.Length - 1
formID = gdpicturePDF.AddRadioButtonFormField(1, 1 + i, 1, 1, "Group1", buttonName + (i + 1).ToString(), PdfCheckBoxStyle.PdfCheckBoxStyleStar, Color.Black)
If (gdpicturePDF.GetStat() <> GdPictureStatus.OK) OrElse
(gdpicturePDF.SetFormFieldBackgroundColor(formID, Color.Bisque) <> GdPictureStatus.OK) OrElse
(gdpicturePDF.SetFormFieldBorderColor(formID, Color.Brown) <> GdPictureStatus.OK) OrElse
(gdpicturePDF.SetFormFieldOnStateName(formID, i, colors(i)) <> GdPictureStatus.OK) OrElse
(gdpicturePDF.DrawText(fontResName, 2.5F, 1.65F + i, colors(i)) <> GdPictureStatus.OK) Then
MessageBox.Show("Adding the radio button nr." + (i + 1).ToString() + " has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
Exit For
End If
Next
If gdpicturePDF.GetStat() = GdPictureStatus.OK Then
'Setting the last child radio button in a group to be checked by default.
If gdpicturePDF.SetFormFieldDefaultChecked(formID, colors.Length - 1) <> GdPictureStatus.OK Then
MessageBox.Show("The SetFormFieldDefaultChecked() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
End If
End If
If gdpicturePDF.GetStat() = GdPictureStatus.OK Then
If gdpicturePDF.SaveToFile("forms_radiobutton.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("Adding font or drawing text 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: SetFormFieldDefaultChecked";
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.PdfStandardFontTimesItalic);
if ((gdpicturePDF.GetStat() == GdPictureStatus.OK) &&
(gdpicturePDF.DrawText(fontResName, 1, 0.8f, "What colour do you prefer for your T-shirt?") == GdPictureStatus.OK))
{
int formID = 0;
string buttonName = "RadioButton";
string[] colors = new string[] { "white", "yellow", "red", "blue", "green", "black" };
for (int i = 0; i < colors.Length; i++)
{
formID = gdpicturePDF.AddRadioButtonFormField(1, 1 + i, 1, 1, "Group1", buttonName + (i + 1).ToString(), PdfCheckBoxStyle.PdfCheckBoxStyleStar, Color.Black);
if ((gdpicturePDF.GetStat() != GdPictureStatus.OK) ||
(gdpicturePDF.SetFormFieldBackgroundColor(formID, Color.Bisque) != GdPictureStatus.OK) ||
(gdpicturePDF.SetFormFieldBorderColor(formID, Color.Brown) != GdPictureStatus.OK) ||
(gdpicturePDF.SetFormFieldOnStateName(formID, i, colors[i]) != GdPictureStatus.OK) ||
(gdpicturePDF.DrawText(fontResName, 2.5f, 1.65f + i, colors[i]) != GdPictureStatus.OK))
{
MessageBox.Show("Adding the radio button nr." + (i + 1).ToString() + " has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
break;
}
}
if (gdpicturePDF.GetStat() == GdPictureStatus.OK)
{
//Setting the last child radio button in a group to be checked by default.
if (gdpicturePDF.SetFormFieldDefaultChecked(formID, colors.Length - 1) != GdPictureStatus.OK)
MessageBox.Show("The SetFormFieldDefaultChecked() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
}
if (gdpicturePDF.GetStat() == GdPictureStatus.OK)
{
if (gdpicturePDF.SaveToFile("forms_radiobutton.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("Adding font or drawing text 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();
Example
How to check the last child radio button in a group to be checked by default in this group.
Dim caption As String = "Example: SetFormFieldDefaultChecked"
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.PdfStandardFontTimesItalic)
If (gdpicturePDF.GetStat() = GdPictureStatus.OK) AndAlso
(gdpicturePDF.DrawText(fontResName, 1, 0.8F, "What colour do you prefer for your T-shirt?") = GdPictureStatus.OK) Then
Dim formID As Integer = 0
Dim buttonName As String = "RadioButton"
Dim colors As String() = New String() {"white", "yellow", "red", "blue", "green", "black"}
For i As Integer = 0 To colors.Length - 1
formID = gdpicturePDF.AddRadioButtonFormField(1, 1 + i, 1, 1, "Group1", buttonName + (i + 1).ToString(), PdfCheckBoxStyle.PdfCheckBoxStyleStar, Color.Black)
If (gdpicturePDF.GetStat() <> GdPictureStatus.OK) OrElse
(gdpicturePDF.SetFormFieldBackgroundColor(formID, Color.Bisque) <> GdPictureStatus.OK) OrElse
(gdpicturePDF.SetFormFieldBorderColor(formID, Color.Brown) <> GdPictureStatus.OK) OrElse
(gdpicturePDF.SetFormFieldOnStateName(formID, i, colors(i)) <> GdPictureStatus.OK) OrElse
(gdpicturePDF.DrawText(fontResName, 2.5F, 1.65F + i, colors(i)) <> GdPictureStatus.OK) Then
MessageBox.Show("Adding the radio button nr." + (i + 1).ToString() + " has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
Exit For
End If
Next
If gdpicturePDF.GetStat() = GdPictureStatus.OK Then
'Setting the last child radio button in a group to be checked by default.
If gdpicturePDF.SetFormFieldDefaultChecked(formID, colors.Length - 1) <> GdPictureStatus.OK Then
MessageBox.Show("The SetFormFieldDefaultChecked() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
End If
End If
If gdpicturePDF.GetStat() = GdPictureStatus.OK Then
If gdpicturePDF.SaveToFile("forms_radiobutton.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("Adding font or drawing text 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: SetFormFieldDefaultChecked";
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.PdfStandardFontTimesItalic);
if ((gdpicturePDF.GetStat() == GdPictureStatus.OK) &&
(gdpicturePDF.DrawText(fontResName, 1, 0.8f, "What colour do you prefer for your T-shirt?") == GdPictureStatus.OK))
{
int formID = 0;
string buttonName = "RadioButton";
string[] colors = new string[] { "white", "yellow", "red", "blue", "green", "black" };
for (int i = 0; i < colors.Length; i++)
{
formID = gdpicturePDF.AddRadioButtonFormField(1, 1 + i, 1, 1, "Group1", buttonName + (i + 1).ToString(), PdfCheckBoxStyle.PdfCheckBoxStyleStar, Color.Black);
if ((gdpicturePDF.GetStat() != GdPictureStatus.OK) ||
(gdpicturePDF.SetFormFieldBackgroundColor(formID, Color.Bisque) != GdPictureStatus.OK) ||
(gdpicturePDF.SetFormFieldBorderColor(formID, Color.Brown) != GdPictureStatus.OK) ||
(gdpicturePDF.SetFormFieldOnStateName(formID, i, colors[i]) != GdPictureStatus.OK) ||
(gdpicturePDF.DrawText(fontResName, 2.5f, 1.65f + i, colors[i]) != GdPictureStatus.OK))
{
MessageBox.Show("Adding the radio button nr." + (i + 1).ToString() + " has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
break;
}
}
if (gdpicturePDF.GetStat() == GdPictureStatus.OK)
{
//Setting the last child radio button in a group to be checked by default.
if (gdpicturePDF.SetFormFieldDefaultChecked(formID, colors.Length - 1) != GdPictureStatus.OK)
MessageBox.Show("The SetFormFieldDefaultChecked() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
}
if (gdpicturePDF.GetStat() == GdPictureStatus.OK)
{
if (gdpicturePDF.SaveToFile("forms_radiobutton.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("Adding font or drawing text 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();
See Also
Reference
GdPicturePDF Class
GdPicturePDF Members
Overload List
ResetFormFieldDefaultCheckedState Method
AddRadioButtonFormField(Single,Single,Single,Single,String,String,PdfCheckBoxStyle,Byte,Byte,Byte) Method
GetFormFieldId Method
GetFormFieldChildID Method
GetFormFieldChildCount Method
GetFormFieldDefaultChecked(Int32,Int32) Method
ResetFormFieldDefaultCheckedState Method
GetFormFieldsCount Method
GetFormFieldId Method
GetFormFieldChildCount Method
GetFormFieldType Method
GetFormFieldChecked(Int32,Int32) Method