TX Text Control offers a unique way to create documents with fillable form elements such as form text boxes, check box fields and drop-down elements. These forms can be created like mail merge templates and dynamically pre-completed with values form data sources.

Creating Forms

Besides the option to create forms programmatically, form field elements can be added using the out-of-the-box, customizable ribbon UI.

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Interactive forms in an Adobe PDF document can be used to gather information from end-users. This article shows how to create those forms using TX Text Control in .NET applications using C#.

Creating Adobe PDF Forms in C#

The following screenshot shows the ASP.NET version of TX Text Control and the opened Form Field ribbon tab to insert and edit form fields:

Using conditional instructions, it is possible to add dependencies between fields based on logical operators. This allows to add a complete workflow to forms by adding dependencies between form fields. The following animated screenshot shows such a condition. If the user changes the selected product in the drop-down form field, the description and the unit price is changing:

Creating documents with TX Text Control

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Using conditional instructions, it is possible to add dependencies between fields based on logical operators. This allows to add a complete workflow to forms by adding dependencies between form fields. This article illustrates how to combine form fields with table cell formulas.

Combining Form Fields and Formulas

Preparing the Document

The document editor cannot only be used to create those form documents, it can be used to deploy the form as well to collect the input data from users. For this purpose, the editor provides a special form filling mode that can be enabled.

To prepare a document for this mode, the document must be protected:

  1. Preparing the form

    After the form has been designed, form fields are added and conditional instructions are defined, change to the Permissions ribbon tab.

    In the Restrict Editing ribbon group, select Fill in Form Fields and Read Only.

    Creating form documents with TX Text Control

  2. Encrypting the document

    Click on Enforce Protection, set a password in the following dialog and confirm with OK.

    Creating form documents with TX Text Control

  3. Saving the document

    In protected mode, save the document in the internal Text Control format:

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Deploying using the Document Editor

In order to load this form into the document editor in read only mode, the editor must be initialized with the EditMode TX Text Control .NET Server for ASP.NET
Web.MVC Namespace
TextControlSettings Class
EditMode Property
Specifies or returns a value of type Web.EditMode indicating whether the document's text is read-only, can be selected or is editable.
property set to ReadOnly.

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To enable the form field validation and conditional instructions, the setIsFormFieldValidationEnabled property must be set to true:

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After this, the document is loaded as read only into the editor and users are only able to complete form fields. Programmatically, it is possible to save the document with the completed form fields or to extract filled form field data separately.

Deploying using the Document Viewer

Another way to deploy the form is to use the lightweight document viewer that is compatible to the form fields created by the document editor (or MS Word) including conditional instructions.

When loading the document with form fields and conditional instructions into the document viewer, the form fields are enabled automatically:

Forms in Document Viewer

In order to extract the form field values, the forms.getValues TX Text Control .NET Server for ASP.NET
JavaScript API
TXDocumentViewer Object
forms.getValues Method
Returns an array of all contained form fields with it's values completed by the user.
method can be utilized:

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[
  {
    "name":"vendor_name",
    "type":"text",
    "value":"Text Control, LLC"
  },
  {
    "name":"vendor_address",
    "type":"text",
    "value":"6926 Shannon Willow Rd, Suite 400"
  },
  {
    "name":"vendor_city",
    "type":"text",
    "value":"Charlotte"
  },
  {
    "name":"vendor_state",
    "type":"selection",
    "value":"North Carolina"
  },
  [...]

Live Demos

All of these features can be tested live without downloading a trial version using the Text Control Technical Demos.

Live Demo

Test the document viewer live in our online demos and learn how to export the completed form field values.

Live Demo