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Template object for the column information object in DataTables. This object is held in the settings aoColumns array and contains all the information that DataTables needs about each individual column.
Note that this object is related to DataTable.defaults.columns but this one is the internal data store for DataTables's cache of columns. It should NOT be manipulated outside of DataTables. Any configuration should be done through the initialisation options.
A list of the columns that sorting should occur on when this column is sorted. That this property is an array allows multi-column sorting to be defined for a column (for example first name / last name columns would benefit from this). The values are integers pointing to the columns to be sorted on (typically it will be a single integer pointing at itself, but that doesn't need to be the case).
Define the sorting directions that are applied to the column, in sequence as the column is repeatedly sorted upon - i.e. the first value is used as the sorting direction when the column if first sorted (clicked on). Sort it again (click again) and it will move on to the next index. Repeat until loop.
Flag to indicate if the column is searchable, and thus should be included in the filtering or not.
Flag to indicate if the column is sortable or not.
Deprecated When using fnRender, you have two options for what
to do with the data, and this property serves as the switch. Firstly, you
can have the sorting and filtering use the rendered value (true - default),
or you can have the sorting and filtering us the original value (false). [...]
Flag to indicate if the column is currently visible in the table or not
Developer definable function that is called whenever a cell is created (Ajax source, etc) or processed for input (DOM source). This can be used as a compliment to mRender allowing you to modify the DOM element (add background colour for example) when the element is available.
Function to get data from a cell in a column. You should never access data directly through _aData internally in DataTables - always use the method attached to this property. It allows mData to function as required. This function is automatically assigned by the column initialisation method
Deprecated Custom display function that will be called for the
display of each cell in this column. [...]
Function to set data for a cell in the column. You should never set the data directly to _aData internally in DataTables - always use this method. It allows mData to function as required. This function is automatically assigned by the column initialisation method
Property to read the value for the cells in the column from the data source array / object. If null, then the default content is used, if a function is given then the return from the function is used.
Partner property to mData which is used (only when defined) to get the data - i.e. it is basically the same as mData, but without the 'set' option, and also the data fed to it is the result from mData. This is the rendering method to match the data method of mData.
Unique footer TH/TD element for this column (if there is one). Not used in DataTables as such, but can be used for plug-ins to reference the footer for each column.
Unique header TH/TD element for this column - this is what the sorting listener is attached to (if sorting is enabled.)
The class to apply to all TD elements in the table's TBODY for the column
When DataTables calculates the column widths to assign to each column, it finds the longest string in each column and then constructs a temporary table and reads the widths from that. The problem with this is that "mmm" is much wider then "iiii", but the latter is a longer string - thus the calculation can go wrong (doing it properly and putting it into an DOM object and measuring that is horribly(!) slow). Thus as a "work around" we provide this option. It will append its value to the text that is found to be the longest string for the column - i.e. padding.
Allows a default value to be given for a column's data, and will be used whenever a null data source is encountered (this can be because mData is set to null, or because the data source itself is null).
Name for the column, allowing reference to the column by name as well as by index (needs a lookup to work by name).
Custom sorting data type - defines which of the available plug-ins in afnSortData the custom sorting will use - if any is defined.
Class to be applied to the header element when sorting on this column
Class to be applied to the header element when sorting on this column - when jQuery UI theming is used.
Title of the column - what is seen in the TH element (nTh).
Column sorting and filtering type
Width of the column
Width of the column when it was first "encountered"
A list of the columns that sorting should occur on when this column is sorted. That this property is an array allows multi-column sorting to be defined for a column (for example first name / last name columns would benefit from this). The values are integers pointing to the columns to be sorted on (typically it will be a single integer pointing at itself, but that doesn't need to be the case).
Define the sorting directions that are applied to the column, in sequence as the column is repeatedly sorted upon - i.e. the first value is used as the sorting direction when the column if first sorted (clicked on). Sort it again (click again) and it will move on to the next index. Repeat until loop.
Flag to indicate if the column is searchable, and thus should be included in the filtering or not.
Flag to indicate if the column is sortable or not.
Deprecated When using fnRender, you have two options for what
to do with the data, and this property serves as the switch. Firstly, you
can have the sorting and filtering use the rendered value (true - default),
or you can have the sorting and filtering us the original value (false).
Please note that this option has now been deprecated and will be removed in the next version of DataTables. Please use mRender / mData rather than fnRender.
Flag to indicate if the column is currently visible in the table or not
Developer definable function that is called whenever a cell is created (Ajax source, etc) or processed for input (DOM source). This can be used as a compliment to mRender allowing you to modify the DOM element (add background colour for example) when the element is available.
| Name | Type | Attributes | Default | Description | |
|---|---|---|---|---|---|
1 | nTd | element | The TD node that has been created | ||
2 | sData | * | The Data for the cell | ||
3 | oData | array | object | The data for the whole row | ||
4 | iRow | int | The row index for the aoData data store |
Function to get data from a cell in a column. You should never access data directly through _aData internally in DataTables - always use the method attached to this property. It allows mData to function as required. This function is automatically assigned by the column initialisation method
| Name | Type | Attributes | Default | Description | |
|---|---|---|---|---|---|
1 | oData | array | object | The data array/object for the array (i.e. aoData[]._aData) | ||
2 | sSpecific | string | The specific data type you want to get - 'display', 'type' 'filter' 'sort' |
The data for the cell from the given row's data
Deprecated Custom display function that will be called for the
display of each cell in this column.
Please note that this option has now been deprecated and will be removed in the next version of DataTables. Please use mRender / mData rather than fnRender.
| Name | Type | Attributes | Default | Description | |
|---|---|---|---|---|---|
1 | o | object | Object with the following parameters: | ||
| o.iDataRow | int | The row in aoData | |||
| o.iDataColumn | int | The column in question | |||
| o.aData | array | The data for the row in question | |||
| o.oSettings | object | The settings object for this DataTables instance |
The string you which to use in the display
Function to set data for a cell in the column. You should never set the data directly to _aData internally in DataTables - always use this method. It allows mData to function as required. This function is automatically assigned by the column initialisation method
| Name | Type | Attributes | Default | Description | |
|---|---|---|---|---|---|
1 | oData | array | object | The data array/object for the array (i.e. aoData[]._aData) | ||
2 | sValue | * | Value to set |
Property to read the value for the cells in the column from the data source array / object. If null, then the default content is used, if a function is given then the return from the function is used.
Partner property to mData which is used (only when defined) to get the data - i.e. it is basically the same as mData, but without the 'set' option, and also the data fed to it is the result from mData. This is the rendering method to match the data method of mData.
Unique footer TH/TD element for this column (if there is one). Not used in DataTables as such, but can be used for plug-ins to reference the footer for each column.
Unique header TH/TD element for this column - this is what the sorting listener is attached to (if sorting is enabled.)
The class to apply to all TD elements in the table's TBODY for the column
When DataTables calculates the column widths to assign to each column, it finds the longest string in each column and then constructs a temporary table and reads the widths from that. The problem with this is that "mmm" is much wider then "iiii", but the latter is a longer string - thus the calculation can go wrong (doing it properly and putting it into an DOM object and measuring that is horribly(!) slow). Thus as a "work around" we provide this option. It will append its value to the text that is found to be the longest string for the column - i.e. padding.
Allows a default value to be given for a column's data, and will be used whenever a null data source is encountered (this can be because mData is set to null, or because the data source itself is null).
Name for the column, allowing reference to the column by name as well as by index (needs a lookup to work by name).
Custom sorting data type - defines which of the available plug-ins in afnSortData the custom sorting will use - if any is defined.
Class to be applied to the header element when sorting on this column
Class to be applied to the header element when sorting on this column - when jQuery UI theming is used.
Title of the column - what is seen in the TH element (nTh).
Column sorting and filtering type
Width of the column
Width of the column when it was first "encountered"