modify-form-fields.md

title	description	type	page_title	slug	position	tags	res_type
Iterate and modify form fields in code	Learn how to iterate and modify form fields in code using PdfProcessing.	how-to	Iterate and modify form fields in code	modify-form-fields	0	form, fields, modify	kb

Product Version	Product	Author
2020.1.218	RadPdfProcessing	Dimitar Karamfilov

Description

You have a document that has many form fields and you want to populate them with data in the code.

Solution

You can import the document and iterate all fields. This will allow you to set their value.

C#

{{region kb-modify-form-fields_0}}

var provider = new PdfFormatProvider();

var document = provider.Import(File.ReadAllBytes("form_doc.pdf"));

foreach (RadFixedPage page in document.Pages)
{
    
    foreach (Annotation annotation in page.Annotations)
    {
        if (annotation.Type == AnnotationType.Widget)
        {
            Widget widget = (Widget)annotation;
            var field = widget.Field as TextBoxField;
            if (field != null)
            {
                if (field.Name == "Name")
                {
                    field.Value = "John Doe";
                }
            }
        }
    }
}

File.WriteAllBytes("result.pdf", provider.Export(document));

{{endregion}}