setline_a_virtual_to_position_the_file_.htm
Navigation: ABC Library Reference > ASCIIFileClass > AsciiFileClass Methods >====== SetLine (a virtual to position the file)  ====== |    |
SetLine( line number ), PROTECTED, VIRTUAL
| SetLine | A virtual placeholder method to position the file. |
| line number | The offset or position of the line in the file. |
The SetLine method is a virtual placeholder method to position the file.
Implementation:
The SetLine method is a placeholder for derived classes. The SetPercentile, the ASCIIViewerClass.AskGotoLine, and the ASCIISearchClass.Ask methods call the SetLine method.
Example:
MyViewerClass.SetLine PROCEDURE(LONG LineNo) !synchronize LIST with line number
CODE
SELF.DisplayPage(LineNo) !scroll list to LineNo
!highlight the LineNo line
SELECT(SELF.ListBox,CHOOSE(SELF.TopLine=LineNo,1,LineNo-SELF.TopLine+1))
See Also: SetPercentile, ASCIIViewerClass.AskGoToLine, ASCIISearchClass.Ask
setline_a_virtual_to_position_the_file_.htm.txt · Last modified: 2021/04/15 15:57 by 127.0.0.1