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How is data rendered in a data table?


Asked by Truett Larsen on Dec 02, 2021 FAQ



Data within DataTables can be easily rendered to add graphics or colour to your tables, as demonstrated in the example on this page. These examples make use of columns.render to customise the cells in three ways: and the built-in number renderer is used to format the Salary.
Similarly,
Render (process) the data for use in the table. The documentation below is a technical reference (nitty-gritty details). For a more general overview of renderers in DataTables, including discussion of the built in renderers, please refer to the DataTables manual on this topic.
Keeping this in consideration, Like columns.data this option can be given in a number of different ways to affect its behaviour as described below. The data that is returned by the columns.render option (regardless of if it is used as a function, integer or string) is what DataTables will use for the requested data type (this is called the resolved data ).
Accordingly,
The original and full data object or array for the row. The value that is returned from the function is whatever DataTables will use for the data being requested (display, ordering, search, etc). Consider for example the following data structure which contains the data for a row:
Thereof,
A user updates a row and the code displays it using row ().data (). The user searches or sorts the table. The updated data is now gone. So there is no way to use the logic which is in createdCell () in any other function in datatables after updating the row without draw.