Why is a Print Menu Item so Difficult for PowerBuilder 7.0 to Do?

You want to print from menu item Print.

You can get the active sheet, You should write for your Print the datwindow name (DW control name) with your active window name. You can use CHOOSE CASE or IF statement.

For exemple


IF w_activesheet = w_employee_main
     w_employee_main.dw_master.print()
ELSEIF
    ............
ELSE
    .............
END IF

You can also use CHOOSE CASE but I think CHOOSE CASE is slower then IF statement.


You should recognise the for  w_activesheet   w_employee_main and compiler should know which datawindow and from which window.

window.datawindow.print()


Try it

Try This:
...
Integer     li_Job

li_Job = PrintOpen("Datawindow Report")

Choose Case w_activeSheet // datatype window
     Case w_employee_main
     PrintDataWindow(li_Job, w_employee_main.dw_master)
     Case w_Payroll_main
     PrintDataWindow(li_Job, w_Payroll_main.dw_other)
...
End Choose

PrintClose(li_Job)
...

I do not have access to 7.0 documentation at the moment, but 6.5 documentation requires 2 perameters for the PrintDatawindow function. the first being the number of the printjob opened with PrintOpen()

Now for the bull:

I have a concept when programming in PB, "Let an object take care of its own buisness."
This means try to use "This." to prefix a function, property, event ...
If you can use encapsulation your work will become much easier.

Also, Windows is a messaging operating system, you should code that way.

I would add a common event to each sheet ue_printdw()
This works best if you have inherited each of your sheets from a common ancestor.
Also if the parent of the menu is your frame create an ue_PrintDW event there as well

Then in your menu script:
parent.triggerevent("ue_Printdw")  // Pass the print request to the controller (frame)

 I try to keep the menu code as simple as possible.

If you need the frame script for ue_printdw:

Prefered method:
uo_sheet   lo_sheet    /* Ancestor inherits from window and has an event ue_printDW */

lo_sheet = this.getactivesheet()

lo_sheet.event static trigger ue_printdw()    // Pass the message along to the sheet

Alternate method:
window   lo_sheet

lo_sheet = this.getactivesheet

lo_sheet.triggerevent("ue_printdw")  // Pass the message along to the sheet

Last in uo_sheet.ue_Event let the object take care of its own printing
// uo_Sheet.ue_printdw()

Integer li_Job

li_Job = PrintOpen("Print Job")

This.PrintDataWindow(li_Job, This.MyDW)

PrintClose(li_Job)

Hi Caseys95,

I'm able to follow most of what you suggest, except for:

"uo_sheet   lo_sheet    /* Ancestor inherits from window and has an event ue_printDW */"

lo_sheet inherits from the window named uo_sheet and uo_sheet has the user event 'ue_printDW' on it?

Then, within the ue_printDW the code:

Integer li_Job

li_Job = PrintOpen("Print Job")

This.PrintDataWindow(li_Job, This.MyDW)

PrintClose(li_Job)

is placed? I guess I'm a little confused on the naming convention being used. This project has a window, 'w_base', on it and a datawindow control, 'dw_master', which is inherited from 'w_base' on other windows(sheets). Could the ue_printDW event be placed on this sheet?

Jim

Ah, I thought of this...

What if the active sheet has more than one data window control placed upon it? I couldn't find a PB function to detect/count the number of data window objects there are.
Would one pop-up a messagebox saying "Which data selection do you wish to print?"

???? Another question to E.E. PB ??

JimNowlin

Do you mean find the number of controls in window or number of datawindows in window?

Try

Datawindow     lo_DW

For liX = 1 to w_Mywin.Control

Sorry

Try

Integer        liX, liY
Datawindow     lo_DW[]

For liX = 1 to Upperbound(w_Mywin.Control)

      IF w_Mywin.Control[liX].TypeOf() = Datawindow! THEN
         liY++
         lo_DW[liY] = w_Mywin.Control[liX]
          ... // Some processing
      END IF

NEXT

Bhatti,

I have a window (sheet) with two data window controls on it, dw_main and dw_detail. In the future, I may have 1 or 2 addtional data window controls on this sheet. It looks as though Caseys95 is on the right track using an array of data window control.

JNowlin

Hey,

So very much good stuff here. I believe I am now beginning to understand. I won't get a chance to try it until Thursday.

This has been such a problem for newbie me.

Meanwhile, I must increase point value. Also, I may need to split points between you both.

Jim

It's going to take longer than expected to work with you on this question.

Thsi past Thursday, I was told I must vacate my appartment by no later than October 1, 2001.
I will need to use more time to look for a place to live.
Please bear with me.
Thank-you.

Jim

Hello all,

I'm back and living elsewhere. It's quiet. It's good.

I think I will keep this question open/active for now, as I will get back to this soon.

JimNowlin

Hallo Jim,

Nice to hear from you and you have now an appartment. I wrote in my latest comments please have a view, I am writing it again, and if you have any question please write me to know.

FOR i = 1 TO UpperBound(windowname.control[])
        the_object[i] = control[i]
        the_class[i] = the_object[i].ClassName()
        IF the_class[i] = 'dw_master' THEN
                //print the datawindow
               // as mentioned above PrintDatawindow(ll_job, windowname.dw_master)
        END IF
NEXT

Bhatti

I am ever so sorry for forgetting about this question.
I should be back up and ready to go at it soon. I went away to help a friend of a friend who has cancer, and I've been dealing with an obnoxious boss who, after many complaints in the Equal Opportunity Office (including a sexual harrasment complaint), Personnel Dept., managed to get an early retirement from the Commonwealth of Massachusetts. We were all "thrilled". His last day is 03/15/02.

I just upgraded to a refurbished Dell Dimension PC. I had a few minor glitches to contend with, but, after a few more days, I should be ready to get back into the show here. I know it sounds like excuses, perhaps some of it is. But, another, better person, would have abandoned his/her nightmare manager (not to mention, nightmare landlord) long ago.

Once again, please accept my appologies and my rambling on. Once I get my PowerBuilder/Oracle connections again (and my bearings), I intend to continue my best to insure that I am a lively participant, just as I was before.

Jim Nowlin

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Moondancer
Moderator @ Experts Exchange

Thank you Bhatti,

I *still* have not tried, because I've been working on a VB application.
I feel awfull that I have held this question up for so long. So,
I accept your answer now and I will post aditional questions as they come up regarding the Print menu.
Again, please accept my apologies.

JimNowlin
Leicester, Massachusetts

Thank you Jim, for returning and finalizing this.  A quick way to help maintain your questions here is to keep the following link handy, and click to View your question history and find all open/locked questions easily.
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:)
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