ManagedForm.BeforeClose

BeforeClose(<Cancel>, <Exit>, <WarningText>, <StandardProcessing>)Type: Boolean.
Indicates that object writing is cancelled. If you set this parameter to True in the body of the handler procedure, the object will not be written.
Default value: False.Type: Boolean.
The attribute indicating the form closing during the process of application shutdown is transferred to this parameter:

• True - if in the process of application shutdown; False - if only the form closes.

Type: String.
If the parameter <Cancel> has been set value True and <WarningText> contains a non-empty string, then:

• if <Shutdown> has been set to True, the message window with a warning text string is displayed and the user is prompted to stay or exit the window without saving changes.
• if <Shutdown> has been set to False, warning text is ignored and the process of form closing is aborted.

If the parameter <Cancel> has been set value True and <WarningText> contains an empty string, then:

• if <Shutdown> has been set to True, a message window with a general text " Work is not complete in this window" is displayed and the user is prompted to stay or exit the window without saving changes.
• if <Shutdown> has been set to False, the parameter value <WarningText> is ignored, and the process of application shutdown will be continued.

If the parameter <Cancel> has been set value False, the parameter value <WarningText> is ignored, and the process of application shutdown will be continued.
Note: In Mozilla Firefox web browser the message window contains no warning text.Type: Boolean.
This parameter passes a flag indicating whether standard (system) processing of the event is performed. If in the body of handler procedure a value of this parameter is set to False, standard generation of task list will not be executed.
Default value: True.Occurs on the client before closing a form, or when a modal form is closed by timeout. In the event handler, it is possible to cancel both the form closing and the standard on-close processing.
In the process of application shutdown (parameter Exit has a value True) server calls and opening windows are not allowed.When form is closed by timeout, if closing was cancelled in the handler, then second closing will be initiated after the same period of time.
In the web-client mode when the form, opened in the auxiliary windows, is closed by system Close window button (a cross in the upper right form corner) or by pressing Alt+F4. the handler is not called.

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