CheckExpression method

Checks if a given expression is valid.

The expression is correct if the parameters qErrorMsg , qBadFieldNames and qDangerousFieldNames are empty.

Parameters

Name	Description	Mandatory	Type
qExpr	Expression to check.	Yes	String
qLabels	List of labels.	No	Array of String

Name	Description	Type
qErrorMsg	Message displayed when there is a syntax error.	String
qBadFieldNames	A list of bad field names.	Array of NxRange
qDangerousFieldNames	A list of dangerous field names.	Array of NxRange

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