Filter Property [Access 2003 VBA Language Reference]
You can use the Filter property to specify a subset of records to be displayed when a filter is applied to a form, report query, or table. Read/write String.
expression Required. An expression that returns one of the objects in the Applies To list.
If you want to specify a server filter within a Microsoft Access project (.adp) for data located on a server, use the ServerFilter property.
The Filter property is a string expression consisting of a WHERE clause without the WHERE keyword. For example, the following Visual Basic code defines and applies a filter to show only customers from the USA:
Me.Filter = "Country = 'USA'" Me.FilterOn = True
You can also set this property in Form view or Datasheet view by pointing to Filter on the Records menu and clicking one of the commands on the submenu.
Note Setting the Filter property has no effect on the ADO Filter property.
You can use the Filter property to save a filter and apply it at a later time. Filters are saved with the objects in which they are created. They are automatically loaded when the object is opened, but they aren't automatically applied.
To apply a saved filter to a form, query, or table, you can click Apply Filter on the toolbar, click Apply Filter/Sort on the Records menu, or use a macro or Visual Basic to set the FilterOn property to True. For reports, you can apply a filter by setting the FilterOn property to Yes in the report's property sheet.
The Apply Filter button indicates the state of the Filter and FilterOn properties. The button remains disabled until there is a filter to apply. If an existing filter is currently applied, the Apply Filter button appears pressed in.
To apply a filter automatically when a form is opened, specify in the OnOpen event property setting of the form either a macro that uses the ApplyFilter action or an event procedure that uses the ApplyFilter method of the DoCmd object.
You can remove a filter by clicking the pressed-in Apply Filter button, clicking Remove Filter/Sort on the Records menu, or using Visual Basic to set the FilterOn property to False.
Note You can save a filter as a query by clicking Save As Query on the File menu while in the Filter By Form window or the Advanced Filter/Sort window.
When the Filter property is set in form Design view, Microsoft Access does not attempt to validate the SQL expression. If the SQL expression is invalid, an error occurs when the filter is applied.