Question

How to maintain order of selections in parameter

Asked by: magneticskg

I have a report that sums balances for selected months from the general ledger master account which has a field for each month.  I used a static parameter for month selection by user, with 1-12 and descriptions are each month name.  Attached is the formula I'm using to select the period field to sum up.  The problem is if a user selects months out of order, say March, April, February, then the selected periods would actually be 3,4 and 5.  Is there a way to keep the parameter in original order (in this example I would want 2,3 & 4)?

// How many months selected in parameter ?Month
//Parameter ?Month is a static list with month name as description and 1-12 as value. Number parameter, prompt with description only
WhileReadingRecords; 
numberVar Array Input := {?Month};  
NumberVar howmany:= count (Input); 
 
 
 
//To sum up the month fields selected by the user
Whileprintingrecords;
numberVar Array Input;
numbervar howmany;
local numbervar psum;
local numbervar i;
numbervar array P := MakeArray({gl_master.glm_amt_period1},
    {gl_master.glm_amt_period2},
    {gl_master.glm_amt_period3},
    {gl_master.glm_amt_period4},
    {gl_master.glm_amt_period5},
    {gl_master.glm_amt_period6},
    {gl_master.glm_amt_period7},
    {gl_master.glm_amt_period8},
    {gl_master.glm_amt_period9},
    {gl_master.glm_amt_period10},
    {gl_master.glm_amt_period11},
    {gl_master.glm_amt_period12});
//select the periods to sum based on the months selected
For i := 1 to howmany Do 
        psum:= psum + P[Input[i]];
psum

                                  
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Asked On
2009-10-22 at 05:22:00ID24834151
Tags

Crystal Reports

,

static parameter

Topic

Crystal Reports Software

Participating Experts
1
Points
250
Comments
9

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Answers

 

by: mlmccPosted on 2009-10-22 at 06:33:33ID: 25633931

Try this change

Change the first formula to use WhilePrintingRecords rather than WhileReadingRecords.

mlmcc

 

by: magneticskgPosted on 2009-10-22 at 07:08:58ID: 25634368

Doing this causes the array Input to be empty. When I try to use it in another formula, I get an error and it shows the formula with the value for array blank.

 

by: mlmccPosted on 2009-10-22 at 07:18:04ID: 25634480

Where else are you using it?

It was blank in your second formula when I tried it.

In Crystal variable values are not maintained between passes.

mlmcc

 

by: magneticskgPosted on 2009-10-22 at 08:06:41ID: 25635086

Actually, the formula I attached does work (having a crazy-brain day here).  But this one doesn't. If a user selects Mar, Feb, Jan I get only Jan (period1) numbers.

// sum all periods from first of year to the last period selected by the user
Whileprintingrecords;
numberVar Array Input;
numbervar howmany;
local numbervar ytdsum;
local numbervar i;
numbervar array P := MakeArray({gl_master.glm_amt_period1},
    {gl_master.glm_amt_period2},
    {gl_master.glm_amt_period3},
    {gl_master.glm_amt_period4},
    {gl_master.glm_amt_period5},
    {gl_master.glm_amt_period6},
    {gl_master.glm_amt_period7},
    {gl_master.glm_amt_period8},
    {gl_master.glm_amt_period9},
    {gl_master.glm_amt_period10},
    {gl_master.glm_amt_period11},
    {gl_master.glm_amt_period12});
 
//select the periods to sum based on the months selected
For i := 1 to Input[howmany] Do 
        ytdsum:= ytdsum + P[i];
ytdsum
                                              
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by: mlmccPosted on 2009-10-22 at 08:35:28ID: 25635432

That is because you are looping through the wrong value

For i := 1 to Input[howmany] Do
        ytdsum:= ytdsum + P[i];

Input[Howmany] is 1 - the value of the last month picked.  If you pick just Mar it will use 3 months of data.

mlmcc

 

by: magneticskgPosted on 2009-10-22 at 10:05:11ID: 25636428

howmany is a Count of array Input.  Are you sure?

 

by: mlmccPosted on 2009-10-22 at 10:39:12ID: 25636865

Correct.  You arethen using it as the index into the Input array so you are actually using the value of Input[HowMany].

The other formula is doing it correctly.  Compare the code.

mlmcc

 

by: magneticskgPosted on 2009-10-22 at 11:04:52ID: 25637206

So if the user enters the months they want to select out of calendar order, I would need to bubble sort the array Input to get the highest value month entered then for ytd summary start at 1 and end at that highest value month?
 
No way to send the user an electric shock if they enter months out of order? :-}

 

by: mlmccPosted on 2009-10-22 at 12:18:17ID: 25637908

If you need the Year to date then that is correct.

mlmcc

20120131-EE-VQP-002

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