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Using the Forms Collection in Visual Basic 6 (VB6)

This section discusses the use of VB's Forms Collection. Topics covered include using methods and properties of the collection, referencing individual forms, looping through the collection, verifying loaded forms, and unloading forms from the collection.

In Visual Basic, a collection is just a group of objects. If you have more than one form in a project, you would have a Forms Collection that you can use to easily manipulate all forms or just one specific form.The Forms Collection is a built-in or intrinsic collection of VB. Another example of a collection built into VB is the Controls Collection that will return all the controls contained on the specified form.

The Forms Collection contains the loaded forms of all VB form types. MDI Parent forms, MDI Child forms, and non-MDI forms are all included in the collection, along with any forms created at runtime.

The Forms Collection only contains the forms that are currently loaded in memory. If a project contains multiple forms and only the Startup form has been loaded, the collection will only have one item. To be included in the Forms Collection, all forms must be loaded. They do not have to be shown onscreen, only loaded.

If a form is the unloaded from memory, that form is no longer part of the Forms Collection. The collection will reduce its count by one, and that form will no longer be available in the collection.

Using the forms collection topics

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