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Siebel VB Language Reference > VB Language Reference > IsNumeric FunctionThis standard VB function is used to determine whether the value of a variable is numeric. SyntaxReturns-1 (TRUE) if expression has a data type of Numeric, 0 (FALSE) otherwise. UsageIsNumeric returns -1 (TRUE) if the expression is of vartypes 2-6 (numeric) or a string that can be interpreted as a number. If numeric input is required, IsNumeric can be used to determine whether the value input by the user is a valid number before converting the input to a numeric data type for processing. See AlsoIsDate Function |
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