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The DataTables rows and row also optionally cells and cell methods provide the ability to select rows from the table. What rows are selected and how the selector actually operates is controlled by this row-selector data type. The row selector can be given in a number of different forms, to make it easy to apply to your data and use case:. If no selector is given more specifically undefined , then all rows are selected. DataTables stores each row internally with a row index for fast look up of row information.
When the selector is given as an integer, this value represents a row index rows. DataTables row selector is optimised for IDs as it is natural to wish to select rows by unique information. This is distinct from a jQuery selector as DataTables can optimise this selector type so as to not involve the DOM - also allowing an id row selector to operate on rows which have not yet had their DOM nodes created when using deferRender for extra speed.
With dynamically sourced data, the id assigned to the row is identifier using the rowId option. The data used as the id can be of any value, although it must be unique in the table.
To use an id selector, simply prefix the id value for the row you wish to select with a number sign: The value that follows is taken as the id. Unlike jQuery this value does not need to be escaped - although this means that an id selector must be used alone e.
When the selector is given as a string, it is treated as a jQuery selector that operates on the tr elements in the table. For full information about the options available for jQuery selectors, please refer to the jQuery selector documentation.
Note that just like jQuery selector, is it possible to supply multiple selectors using comma separated notation i. This can be useful for getting data from a row, or performing other row based operations, when you have only the DOM node for reference, for example in an event handler.
For complete control over which rows are selected, it is possible to provide a function with logic you've defined to perform the selection. That logic can be as simple or as complex as you wish, performing the selection by simply returning true if the row should be included in the selected results and false if not. That can be particularly useful for finding rows based on the data contained in the rows, or based on properties of the nodes.
The function is called once for every row that can be selected, based on the selector-modifier options, which also defines the order of the rows for the called function. Very similar to the above node type since a jQuery object is an array-like list of DOM nodes , a jQuery instance can be given as a row selector, with any nodes which are selected by jQuery and match those available in the table selected.
Any combination of the above options can be given as selector together, providing a method to select multiple rows, or to mix selector types, by simply providing the selector options you want in an array. DataTables designed and created by SpryMedia Ltd.
SpryMedia Ltd is registered in Scotland, company no. Description The DataTables rows and row also optionally cells and cell methods provide the ability to select rows from the table. Options The row selector can be given in a number of different forms, to make it easy to apply to your data and use case: No selector - Select all rows integer - Row index selector string - ID selector string - jQuery selector node - This may be one of the following: This can be used by extensions such as FixedColumns and Responsive to allow easy row selection.
Get data for all rows in the table: Row index 0 data: Select a single row by id: Select rows by class name: Get the data for a row that was clicked upon: The function receives three parameters: Row index - see row.
Note that this is the original data object for the row, not the rendered data if you are using columns. Note that this may be null if you are using deferRender. Get data from rows in a jQuery instance: Get the data for two rows, based on id: