Question

Storing data in a datastore

Asked by: harsha_james

Hi, I'm trying to store some data in a datastore object. My code is given below.

The problem is that insertRow(0) is always returning -1 and so, I'm not able to insert any data.

What am I doing wrong here?

Based on a suggestion I got from here, I tried using "lds_abc.SetTransObject(SQLCA)" before calling InsertRow, but that didn't work.

long ll_row
ds_ABC lds_ABC
 
lds_ABC= create ds_ABC
lds_ABC.DataObject = 'dw_AC_DB'
 
ll_Row = lds_ABC.InsertRow(0)
 
if ll_Row <> -1 then
      lds_ABC.object.code[ll_row] = ls_read
end if

                                  
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Asked On
2009-08-13 at 03:00:52ID24649206
Tags

Powerbuilder

,

Datastore

,

Datawindow

Topic

PowerBuilder Programming Language

Participating Experts
2
Points
500
Comments
8

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Answers

 

by: shru_0409Posted on 2009-08-13 at 04:43:53ID: 25087093

what is ds_Abc? if not than code should be

long ll_row
DataStore lds_ABC
 
lds_ABC= create DataStore
lds_ABC.DataObject = 'dw_AC_DB'
lds_abc.SetTransObject(SQLCA)"
 
ll_Row = lds_ABC.InsertRow(0)
 
if ll_Row <> -1 then
      lds_ABC.object.code[ll_row] = ls_read
end if

 

by: harsha_jamesPosted on 2009-08-13 at 05:19:08ID: 25087316

ds_ABC is a datastore that I've created. I also tried with Datastore instead.
And I tried using SetTransObject(SQLCA) for both. It still gives -1 for insertRow()

 

by: shru_0409Posted on 2009-08-13 at 05:33:23ID: 25087438

pls send me the error which u r getting

IF SQLCA.SQLCode = -1 THEN

        MessageBox("SQL error", SQLCA.SQLErrText)

END IF

 

by: harsha_jamesPosted on 2009-08-13 at 21:55:09ID: 25095353

The error says "Transaction not connected".
I couldn't understand clearly what SetTransObject does. Is it used to connect to a database?
I don't have a database in my application. All data is stored in excel and text files.

 

by: shru_0409Posted on 2009-08-14 at 01:28:32ID: 25096082

 

by: harsha_jamesPosted on 2009-08-14 at 03:30:41ID: 25096585

Thanks, Shru_0409. I'll check it out. Meanwhile, I used another code that I got from this site to get data into the datastore from an Excel file. My code is given below:


This seems to work.
But as you can see, I've hard coded the lastcell value with the column letter 'H'.(The excel file that I used for testing had 'H', i.e, 8 columns.) Is there any way to get this column letter using some function?

lds_ABC = create Datastore
lds_ABC.DataObject = 'dw_test_ABC'
 
OLEObject  excel
Integer    li_RetValue, li_rtn 
Boolean    lb_sheet_rtn 
Long       ll_cnt 
String     ls_ClipBoard
long l_row_count
long l_col_count
string firstcell, lastcell
 
excel = create OLEObject 
 
li_rtn = excel.ConnectToNewObject("excel.application") 
IF li_rtn <> 0 THEN 
   MessageBox('Excel error','can not run Excel Program') 
   DESTROY excel 
   RETURN 0 
END IF
	
excel.WorkBooks.Open( "C:\Temp\ABC.xls" ) 
excel.Application.Visible = false 
excel.windowstate = 2 // 1 : Normal, 2 : Minimize, 3 : Maximize
	
lb_sheet_rtn = excel.worksheets(1).Activate 
 
ls_ClipBoard =  Clipboard() //Store current clipboard Data
	
l_row_count = excel.worksheets(1).usedrange.rows.count
l_col_count = excel.application.workbooks(1).worksheets(1).usedrange.columns.count
firstcell="A2"
lastcell="H" + string( l_row_count)
	
excel.Worksheets(1).Range(firstcell,lastcell).Copy  //  copy to clipboard - Take enough Range. If data ha header row, use correct statring range.. (B1:... )
	
ll_cnt = lds_ABC.importclipboard() 
 
Clipboard(ls_ClipBoard) //Restore clipboard
	
IF ll_cnt <= 1 THEN 
    Messagebox("Inf", "Could not find .") 
END IF 
excel.Application.Quit 
excel.DisConnectObject() 
DESTROY excel

                                              
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by: Vikas_DixitPosted on 2009-08-14 at 08:10:26ID: 25098851

Back to your original question - on why insertRow(0) is returning -1, Only reason I could think of is that the datastore you are assigning is not valid/has errors.
Please make sure that datawindow 'dw_AC_DB' exists in your library list and you can open it in datawindow painter. Any spelling errors ?
lds_ABC.DataObject = 'dw_AC_DB'

Insertrow() shouldn't be needing SetTransobject()

 

by: harsha_jamesPosted on 2009-08-16 at 21:32:30ID: 25111630

Thanks, Vikas. I was using an already existing datawindow. I tried creating a new datawindow and used it in the above code. This has worked.

20120131-EE-VQP-002

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