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式の引数
引数 expression
It is not used in this sample, but when using this bool argument, use the lambda expression argument.
You can use the string expression argument in an SQL aggregate function to perform a calculation on values in a field. For example, you could calculate a percentage (such as a surcharge or sales tax) by multiplying a field value by a fraction.
The BuildCriteria method enables you to easily construct criteria for a filter based on user input. It parses the expression argument in the same way that the expression would be parsed had it been entered in the query design grid, in Filter By Form or Server Filter By Form mode.
Error values are created by converting real numbers to error values using the CVErr function. The IsError function is used to determine if a numeric expression represents an error. IsError returns True if the expression argument indicates an error; otherwise, it returns False.
Microsoft Access uses an array, the GroupLevel property array, to keep track of the group levels created for a report. The CreateGroupLevel method adds a new group level to the array, based on the expression argument. The CreateGroupLevel method then returns an index value that represents the new group level's position in the array. The first field or expression you sort or group on is level 0, the second is level 1, and so on. You can have up to ten group levels in a report (0 to 9).
The BuildCriteria method returns a parsed criteria string as it would appear in the query design grid, in Filter By Form or Server Filter By Form mode. For example, you may want to set a form's Filter or ServerFilter property based on varying criteria from the user. You can use the BuildCriteria method to construct the string expression argument for the Filter or ServerFilter property. String.
It can take a regular expression argument, as well as a fixed string, by which to split the object string. If separator is a regular expression, any included parentheses cause submatches to be included in the returned array.
You can use the string expression argument (the expr argument) in a domain aggregate function to perform a calculation on values in a field. For example, you can calculate a percentage (such as a surcharge or sales tax) by dividing a field value by a number.
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