Create new interactive forms field for each item in list

[Marco]

Good Morning, 

 

I'm currently working on a project which consists in using a foreach on a list which then I would like to create a new texbox for each of the items. 

Also please note that I'm new to this so sorry if I haven't explained it properly.  

When running the debugger it complains of the item having the same key when it comes around to create the second textbox. Which it would be referring to the the  "txtBox". 

 

Please see the snippet below: 

            foreach (var c in list)

            {
                  TextBoxField txtBox = new TextBoxField("txtBox");
                   
                    txtBox.IsRequired = true;
                    txtBox.IsReadOnly = true;
                    document.AcroForm.FormFields.Add(txtBox);
                    txtBox.Value = "abc";
                    editor.Position.Translate(0, 110);
                    editor.DrawWidget(txtBox, new System.Windows.Size (300, 100));
            };

 

 

Thanks

Marco

[Georgi]

Hello Marco,

Thank you for your interest in PdfProcessing.

When adding fields to a FormFieldCollection of an AcroForm, each field should have a unique name, as can be seen in the Form Fields section of the documentation. For example:

for (int i = 0; i < list.Count; i++)
{
    TextBoxField txtBox = new TextBoxField("txtBox" + i);

    txtBox.IsRequired = true;
    txtBox.IsReadOnly = true;
    document.AcroForm.FormFields.Add(txtBox);
    txtBox.Value = "abc";
    editor.Position.Translate(0, 110);
    editor.DrawWidget(txtBox, new System.Windows.Size(300, 100));
}

I hope this helps.

Regards,
Georgi
Progress Telerik

[Marco]

Thanks that worked like a treat. Do I need to open another thread for a different question? it's still pdf processing. 

It's regarding dynamically creating a new pdf page. I won't always have the same amount of form fields. 

 

Best regards,

Marco

[Georgi]

Hi Marco,

PDF is fixed document format and the elements in the page content are measured and positioned in a strict manner. In order to manipulate the position of a content element and find if the current position exceeds the page boundaries, you can use the Position property of the FixedContentEditor class. For example, before drawing a widget annotation, you can calculate the remaining page size and add a new page if the remaining size is insufficient to add a content element.

Please, find attached a sample project demonstrating this approach.

I hope this helps.

Regards,
Georgi
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