Difference between revisions of "EXPRCHECK()"
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==Purpose== | ==Purpose== | ||
Function to check expression for errors | Function to check expression for errors | ||
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==Syntax== | ==Syntax== | ||
EXPRCHECK(<expC>) | EXPRCHECK(<expC>) | ||
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==See Also== | ==See Also== | ||
[[ERROR()]], [[MESSAGE()]] | [[ERROR()]], [[MESSAGE()]] | ||
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==Description== | ==Description== | ||
The function EXPRCHECK() evaluates the Lianja/4GL expression specified in the string <expC>, and returns the appropriate Lianja error number, or 0 if the expression evaluated correctly. | The function EXPRCHECK() evaluates the Lianja/4GL expression specified in the string <expC>, and returns the appropriate Lianja error number, or 0 if the expression evaluated correctly. | ||
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==Example== | ==Example== | ||
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return m_ret | return m_ret | ||
</code> | </code> | ||
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==Products== | ==Products== | ||
Revision as of 11:30, 12 December 2012
Purpose
Function to check expression for errors
Syntax
EXPRCHECK(<expC>)
See Also
Description
The function EXPRCHECK() evaluates the Lianja/4GL expression specified in the string <expC>, and returns the appropriate Lianja error number, or 0 if the expression evaluated correctly.
Example
function CheckExpr parameter querystring if exprcheck(querystring) > 0 dialog box "Error in Query String: " + message() m_ret = .F. else m_ret = .T. endif return m_ret
Products
Lianja Server, Lianja
