View source for Em validation sq

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===Sub-question validation equation (em_validation_sq)=== <!--T:219-->

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'''Description'''

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This is an equation that is used to validate each subquestion (text field) individually.  Any text field that does not pass these validation conditions will have its background color turned pink (using the .em_sq_fn_validation CSS style) to highlight the error.  Note that this is available in addition to the regular expression-based validation option.

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'''Valid values'''

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Any equation that makes use of the [[ExpressionScript - Presentation|ExpressionScript]] syntax, without surrounding curly braces.

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'''Examples'''

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For example, if you want to allow only numbers that are a multiple of 3 as answers, the equation would be:

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<syntaxhighlight lang="php" enclose="div">(this / 3) == floor(this/3)</syntaxhighlight>

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The reserved variable [[ExpressionScript - Presentation#The_reserved_.27this.27.2C_.27self.27.2C_and_.27that.27_variables|''this'']] is automatically replaced by a reference to the active text entry cell.

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[[Category:Question Settings]][[Category:Question Logic Options]]

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