Filters are a set of named criteria that allows you to select only specific entries in a view. Zoho Creator creates default filters for the fields belonging to any of the following types. These filters are called "Auto filters".
If your form contains any of the above field types, the corresponding field names will be displayed in the GUI as shown below, when you select the Set Filters option for a view in Edit maode. For example, in the Employee form, the field Department is a single-select picklist field. Hence, it is displayed as a default filter, as shown below in addition to the date-time fields. You can enable/disable the auto filters by selecting/deselecting the show check-box. By default, it is enabled.
When you access the view, the filters will be displayed in the Filter list-box as shown below. The name of the field will be taken as the name of the filter. The values for the fields will get displayed in the Filters drop down list. Selecting a filter name, will display only those records that satisfy the filter criteria. For example, if the Department is selected as "Engineering",only those employees in the Engineering department will be listed. 
Note:
Custom filters are a set of named criteria that can be defined by the user. At present, only simple criteria can be defined in the GUI mode. To create more complex filter, refer the topic Deluge Reference ->Criteria/filters in Views.
To create a custom filter,
The custom filters configured in the GUI will be added to the view definition. To view the definition, select More Actions -> View Definition from the View header. Refer the topic Deluge Reference ->Criteria/filters in Views to create views with complex criteria and filters.
