Similarly, the Field.GetValueAsString() method is available. Other field types, such as check boxes and radio buttons, can also return text from GetValueAsString(). A text field will return a string: if (type = Field. A text field type varies depending on the field type. You can fill, edit, modify PDF forms in C programmatically as we interact with different fillable PDF forms in today’s digital world. For example, Questionnaires are usually designed to collect responses for survey purposes. The value returned varies based on the field type. PDF forms are frequently used to collect data and information. Another disadvantage of this approach is that the user will always be prompted to save the document even if the document was never modified.įield.GetValueAsString() returns the field's value as a string. CutePDF Form SDK allows you to empower your applications with the best PDF forms technology. This method is unreliable - Acrobat does not always generate appearance streams correctly. This will force viewer applications to auto-generate appearance streams every time the document is opened. One approach used by other PDF libraries is to let the PDF viewer automatically pre-generate appearance streams by setting the 'NeedAppearances' flag in AcroForm dictionary: doc. Therefore, if you don't call RefreshAppearance(), the initial value on a PDF page will remain unchanged - it may have retain the old value or it may be blank. In the PDF format, Field's value and appearance are two different entities. Note that, after modifying the Field's value, we refreshed its appearance stream. SetValue ( "New Value" ) // Regenerate appearance stream. Form Fields can be populated using the Field.SetValue() method: field.
0 Comments
Leave a Reply. |