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PdfGraphicsAcroFormRadioGroupField.AddButton(String, RectangleF) Method

Adds a radio button with the specified name to the radio group field and places it in the specified page area.

Namespace: DevExpress.Pdf

Assembly: DevExpress.Pdf.v23.2.Drawing.dll

NuGet Package: DevExpress.Pdf.Drawing


public void AddButton(
    string name,
    RectangleF rect


Name Type Description
name String

A name of a radio button.

rect RectangleF

A page rectangle in the world coordinate system where you can draw the radio button.


To remove all radio buttons, call the ClearButtons() method.


This example shows how to use PDF Graphics API to create a radio button group field and add it to a new page.

View Example

using DevExpress.Pdf;
using System.Drawing;

static void Main(string[] args)
    using (PdfDocumentProcessor processor = new PdfDocumentProcessor())
        // Create an empty document. 

        // Create graphics and draw a radio button field.
        using (PdfGraphics graphics = processor.CreateGraphics())

            // Render a page with graphics.
            processor.RenderNewPage(PdfPaperSize.Letter, graphics);

static void DrawRadioButtonGroupField(PdfGraphics graphics)
    // Create a radio group field.
    PdfGraphicsAcroFormRadioGroupField radioGroup =
         new PdfGraphicsAcroFormRadioGroupField("First Group");

    // Add the first radio button and specify its location.
    radioGroup.AddButton("button1", new RectangleF(0, 0, 20, 20));

    // Add the second radio button.
    radioGroup.AddButton("button2", new RectangleF(0, 20, 20, 20));

    // Specify selected index, style and appearance parameters.  
    radioGroup.SelectedIndex = 1;
    radioGroup.ButtonStyle = PdfAcroFormButtonStyle.Circle;
    radioGroup.Appearance.BackgroundColor = Color.Aqua;
    radioGroup.Appearance.BorderAppearance =
         new PdfGraphicsAcroFormBorderAppearance() 
        Color = Color.Red, 
        Width = 3 

    // Add the field to graphics.

The following code snippets (auto-collected from DevExpress Examples) contain references to the AddButton(String, RectangleF) method.


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See Also