edited for 2.5
Articles
Post Image
The Post Image field allows users to upload an image that is added to the Media Library and Gallery for the post that is created. This field works in tandem with the other Post fields to allow you to create a form that can generate post data from a user submission.
Post Category
The Post Category field allows the user to select a category for the post they are creating. This field works in tandem with the other Post fields to allow you to create a form that can generate post data from a user submission.
Input Mask
Input masks provide a visual guide allowing users to more easily enter data in a specific format such as dates and phone numbers.
gform_field_standard_settings
Use this filter to create a new field settings under the Standard tab. Useful when implementing a new custom field type that requires custom settings.
File Upload
The File Upload field allows users to upload a file with their form submission. You can limit which filetypes a user may upload.
Date
The Date field allows you to present a field that captures date data using the jQuery UI date picker.
Paragraph Text
The Paragraph Text field allows a user to enter text in a textarea form field.
Number
The Number field allows a user to enter a number. The field than automatically validates the form data to insure that a number was entered.
Single Line Text
The Single Line Text field allows users to submit a single line of text. This basic field can be used for anything where no more than a single line of input is required.
Hidden
The Hidden field can be used to store information that should be not visible to the user but can be processed and stored with the user submission.