Configures the filtering behavior of the TreeGrid.
Specifies the columns to be searched at initial rendering of the TreeGrid. You can also get the columns that were currently filtered.
Defaults to 
Defines the search hierarchy modes. The available options are,
* Parent :- Shows the searched record with parent record. * Child :- Shows the searched record with child record. * Both :- shows the searched record with both parent and child record. * None :- Shows only the searched record.
Defaults to Parent
If ignoreCase set to true, then search ignores the diacritic characters or accents while filtering.
Defaults to false
A key word for searching the TreeGrid content.
Defines the operator to search records. The available operators are:
Checks whether the string begins with the specified string.|
Checks whether the string ends with the specified string.|
Checks whether the string contains the specified string. |
Checks whether the string is equal to the specified string.|
Checks for strings not equal to the specified string. |
Defaults to ‘contains’