There are three events to which commands can be attached. You can select more than one type of event. Unique commands can be attached to each (i.e., you can perform one task when the page is opened, and another when it is closed).

Select this option if you want a command to be executed when the page is initializing. For example, you could execute a command to extract recipe data from a database into a Cicode variable, to be displayed on the page.

The following functions should not be called: Login() or UserLogin().

Note: Use the "On Page Shown" event if your command uses ActiveX controls. The "On page entry" event may not properly initialize ActiveX controls. The resulting value from a tag write that is perfomed using the "On page entry" event may not be displayed and accessed correctly if the tag is used directly within the page. The "On page shown" event can be used for initializing tags that are to be accessed on the page.

Select this option if you want a command to be executed when the operator exits the page. For example, this command could be used to close a database that was opened at page entry.

The following functions should not be called: PageGoto(), PageNext(), PagePrev(), PageDisplay(), or PageLast().

Note: If you shut down the system, "On page exit" functions for the currently open pages will not execute. If a particular page exit code needs to run, call the code before calling the Shutdown() function.

Select this option if you want a command to execute continually for the entire time that the page is open. For example, the While page is shown command could be used to perform background calculations for this page.

Select this option if you want a command to execute when a page is first displayed and objects on it (including ActiveX controls) have been initialized. If you want to reference ActiveX controls in your command then use this event instead of "On page entry".

Notes:
1. Use the "On Page Shown" event if your command uses ActiveX controls. The "On page entry" event may occur before the ActiveX controls have been initialized.
2. Use the "On Page Shown" event if your command requires access to the latest variable tag value. The "On page entry" event may occur before the tag has been resolved.

See Also PageInfo Cicode function, type 25.

Select this option if you want the command to execute when the window is activated at runtime. The automation interface allows you to set or get commands for this event using PageEventPutEx and PageEventGetEx.

Select this option if you want the command to execute when the window is deactivated. This command will close the window. The automation interface allows you to set or get commands for this event using PageEventPutExand PageEventGetEx.