A single component often uses a number of interfaces.

GridField_HTMLProvider#

Provides HTML for the header/footer rows in the table or before/after the template.

Examples:

• A header html provider displays a header before the table
• A pagination html provider displays pagination controls under the table
• A filter html fields displays filter fields on top of the table
• A summary html field displays sums of a field at the bottom of the table

GridField_ColumnProvider#

Add a new column to the table display body, or modify existing columns. Used once per record/row.

Examples:

• A data columns provider that displays data from the list in rows and columns.
• A delete button column provider that adds a delete button at the end of the row

GridField_ActionProvider#

Action providers runs actions, some examples are:

• A delete action provider that deletes a DataObject.
• An export action provider that will export the current list to a CSV file.

GridField_DataManipulator#

Modifies the data list. In general, the data manipulator will make use of GridState variables to decide how to modify the data list.

Examples:

• A paginating data manipulator can apply a limit to a list (show only 20 records)
• A sorting data manipulator can sort the Title in a descending order.

GridField_URLHandler#

Sometimes an action isn't enough, we need to provide additional support URLs for the grid. It has a list of URL's that it can handle and the GridField passes request on to URLHandlers on matches.

Examples:

• A pop-up form for editing a record's details.
• JSON formatted data used for javascript control of the gridfield.