If you want to apply the Key filter, you have to write the string to be found in the input field. In order that the filter compares the entered string with the keys, the Key button must be switched on.
Filter and Key switched on
db_filter_key_on
With the Filter and Key buttons pressed, only the data records are displayed in which the entered string is present in the key fields. Text matches are shown in red.
Filter off and Key switched on
db_filter_key_off
The Key filter also works when only the Key button is pressed. In this case the matching texts are shown in red and all data records are displayed.
Notes
You can also use the Key filter in conjunction with the Old filter. Here is an example:
