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Returns the line number of the first occurrence of a character expression or memo field within another character expression or memo field, counting from the first line.
ATLINE(cSearchExpression, cExpressionSearched) |
Parameters
- cSearchExpression
- Specifies the character expression that Microsoft Visual FoxPro looks for in cExpressionSearched.
- cExpressionSearched
-
Specifies the character expression that cSearchExpression searches for.
Both cSearchExpression and cExpressionSearched can be memo fields of any size.
Use MLINE(В ) to return the line containing the matching character expression as a character string.
Tip: ATLINE() offers a convenient way to search memo fields.
Return Value
Numeric
Remarks
ATLINE(В ) searches the second character expression for the occurrence of the first character expression. ATLINE(В ) performs a case-sensitive search. Use ATCLINE(В ) to perform a search that isn't case-sensitive.
If the search is successful, ATLINE(В ) returns the number of the line where the match occurs. If the search is unsuccessful, ATLINE(В ) returns 0.
The line number that ATLINE(В ) returns is determined by the value of SET MEMOWIDTH, even if cExpressionSearched isn't a memo field. For more information, see SET MEMOWIDTH Command.
Example
Example 1 locates the first time a character string occurs in a memo field, displays the first and last names of the employee, and the line of the memo containing the character string.
Example 2 demonstrates how the memo width affects ATLINE(В ).
| В |  Copy Code |
|---|---|
* Example 1
CLOSE DATABASES
OPEN DATABASE (HOME(2) + 'Data\testdata')
USE employee && Open employee table
CLEAR
STORE 'Japanese' TO gcFindString && Case sensitive
LOCATE FOR ATLINE(gcFindString, notes) != 0
? First_Name
?? Last_Name
? MLINE(notes, ATLINE(gcFindString, notes))
* Example 2
STORE '1234567890ABCDEFGHIJ' TO gcString
SET MEMOWIDTH TO 20
? ATLINE('AB', gcString) && Displays 1
SET MEMOWIDTH TO 10
? ATLINE('AB', gcString) && Displays 2 | |
See Also
Other Resources
AT( ) FunctionAT_C( ) Function
ATC( ) Function
ATCC( ) Function
ATCLINE( ) Function
LEFT( ) Function
RAT( ) Function
RATLINE( ) Function
RIGHT( ) Function
SUBSTR( ) Function
LEFTC( ) Function
RIGHTC( ) Function
SUBSTRC( ) Function
MLINE( ) Function
SET MEMOWIDTH Command
$ Operator
OCCURS( ) Function
INLIST( ) Function
Functions
Language Reference (Visual FoxPro)