I would really appreciate help and guidance on a problem that I simply cannot solve.
Very inconsistent results happen when reading Excel cell values. Sometimes my code runs perfectly and other times (about once out of roughly 4 or 5 times) it errors on random rows and columns. The error always occurs on the line,
lcValue := oUsedSheet:Cells:Item( i,j ):Value()
Nevertheless the error always happens for different row and column values. (Including or excluding "do events" does not seem to matter).
Below is a code excerpt.
Code: Select all
oExcel := CreateObject( "Excel.Application" ) oExcel:Workbooks:Open( paFilePathAndName, Origin := xlWindows ) lnSheets := oExcel:Sheets:Count() oExcel:Sheets(1):Select() // Assume sheet #1 is correct oUsedSheet := oExcel:ActiveSheet:UsedRange() pnRows := oUsedSheet:Rows:Count() pnColumns := oUsedSheet:Columns:Count() aXLSX_Array := array( pnRows, pnColumns for i := 1 to pnRows // Each row //do events for j := 1 to pnColumns // Each column in row i //do events lcValue := oUsedSheet:Cells:Item( i,j ):Value() //// <<====== Error line do case case ( valtype( lcValue ) == "C" ) // lcValue := alltrim( lcValue ) case ( valtype( lcValue ) == "N" ) lcValue := alltrim( str( lcValue ) ) case ( lcValue == Nil ) lcValue := "" case ( empty( lcValue ) lcValue := "N" endcase lcValue := alltrim( lcValue ) aXLSX_Array[ i, lnHit ] := lcValue next // j next // i oExcel:ActiveWorkBook:Close() oExcel:Application:Quit() oUsedSheet := nil oExcel := nil
The error message always shows this line's number.
When the error line's HMG code is then pasted into the debugger's "Evaluate", the cell's text is correctly displayed.
The debugger shows row (i) and column (j) values are completely valid but they randomly different each time.
I have spent many long hours going over and over this problem but I am out of ideas.
1) How can my HMG code be improved? I must initially assume that the error is in my code.
2) Is there a creative workaround?
3) Is there any previously known issue of HMG accessing Excel I should know about?
Thank you so much in advance for your kind advice and ideas.