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Siebel VB Language Reference > Methods Reference for Siebel VB > Object Querying Methods > Is Optional Argument Missing MethodThe Is Optional Argument Missing method determines if an optional argument for a procedure is missing. It returns one of the following values: FormatThe following table describes the arguments that you can use with this method. ExampleThe following example prints a list of uppercase characters. The user determines the quantity printed. If the user must print every character, then this example calls the myfunc function without any argument. The function uses the Is Optional Argument Missing method to determine to print every uppercase character or to print only the quantity that the user specifies: Function myfunc(Optional arg1) Sub Button_Click |
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