How to Create Checkbox Field Class in .NET WebForms PDF?
Check Box Field
We can create the check box field using the PdfCheckBoxField Class.
Please refer to the below code snippet for adding the check box field in a new PDF document.
C#
// Create a new PDF document.
PdfDocument document = new PdfDocument();
// Add a new page to the PDF document.
PdfPage page = document.Pages.Add();
// Create Check Box field.
PdfCheckBoxField checkBoxField = new PdfCheckBoxField(page, "CheckBox");
// Set check box properties.
checkBoxField.ToolTip = "Check Box";
checkBoxField.Bounds = new RectangleF(0, 20, 10, 10);
// Add the form field to the document.
document.Form.Fields.Add(checkBoxField);Checkmark Style
We can add different checkmark styles using the PdfCheckBoxStyle enum. The checkmark size depends on the check box field. Please refer to the following code snippet.
C#
// Create Check Box field.
PdfCheckBoxField checkBoxField = new PdfCheckBoxField(page, "CheckBox");
// Set Check box properties.
checkBoxField.Bounds = new RectangleF(50, 230, 8, 8);
checkBoxField.Style = PdfCheckBoxStyle.Cross;Please find the different checkmark styles for the check box field from the PdfCheckBoxStyle enum.
C#
// Create Check Box field.
PdfCheckBoxField checkBoxField = new PdfCheckBoxField(page, "CheckBox");
// Set Check box field style.
checkBoxField.Style = PdfCheckBoxStyle.Check;
checkBoxField.Style = PdfCheckBoxStyle.Circle;
checkBoxField.Style = PdfCheckBoxStyle.Cross;
checkBoxField.Style = PdfCheckBoxStyle.Diamond;
checkBoxField.Style = PdfCheckBoxStyle.Square;
checkBoxField.Style = PdfCheckBoxStyle.Star;For example, one checkmark style added to a Check Box field can be shown in the below code snippet.
C#
// Create a new PDF document.
PdfDocument doc = new PdfDocument();
// Add a page.
PdfPage page = doc.Pages.Add();
PdfForm form = doc.Form;
page.Graphics.DrawString("Qualification:", new PdfStandardFont(PdfFontFamily.Helvetica, 12, PdfFontStyle.Bold), PdfBrushes.Black, new PointF(50, 100));
// Create Check box field.
PdfCheckBoxField checkField = new PdfCheckBoxField(page, "UG");
// Set Check box properties.
checkField.Bounds = new RectangleF(50, 130, 8, 8);
checkField.Style = PdfCheckBoxStyle.Cross;
page.Graphics.DrawString("UG", new PdfStandardFont(PdfFontFamily.Helvetica, 12, PdfFontStyle.Italic), PdfBrushes.Black, new PointF(80, 130));
// Create Check box field.
PdfCheckBoxField checkField1 = new PdfCheckBoxField(page, "PG");
// Set Check box properties.
checkField1.Bounds = new RectangleF(50, 170, 8, 8);
checkField1.Style = PdfCheckBoxStyle.Cross;
page.Graphics.DrawString("PG", new PdfStandardFont(PdfFontFamily.Helvetica, 12, PdfFontStyle.Italic), PdfBrushes.Black, new PointF(80, 170));
// Add the form field to the document.
form.Fields.Add(checkField);
form.Fields.Add(checkField1);Note:
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