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Missing scroll bar [message #4623]

Thu, 13 November 2014 21:14

kong
Messages: 90
Registered: December 2011

Member

I noticed that when you add a new entry to the $fieldarray of function _cm_changeConfig in any class, like for example:

Code: [Select all] [Show/ hide]

   function _cm_changeConfig ($where, $fieldarray)
    {
    	if (!isset($fieldarray['abc'])) $fieldarray['abc'] = 'anything';
    	return $fieldarray;
    } // _cm_changeConfig

You will find that any operation on multiple records (eg. multiple selected records with enq1 or upd1, etc) of this object won't show the scroll bar. A work around is by moving the "add entry to $fieldarray" code to another function, for example _cm_getExtraData, which does not conflict with the scroll bar.

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Re: Missing scroll bar [message #4624 is a reply to message #4623]

Fri, 14 November 2014 04:02

AJM
Messages: 2382
Registered: April 2006
Location: Surrey, UK

Senior Member

The _cm_changeConfig() method is supposed to be used only to change the configuration of that entity, such as the contents of the $fieldspec array. Adding extra values to $fieldarray should be done in the _cm_getExtraData() method.

It is possible to add extra values in the _cm_changeConfig() method, but as it is called several times a change to the contents of $fieldarray can have different results. The first time it is called in an UPD or ENQ task is before the call to getData(), so the $where string is not empty and $fieldarray shows the primary key of the first selection. If you make a change to $fieldarray at this point this will then replace the contents of the $where string, thus replacing the multiple selection with a single selection which causes the scroll bar to be removed as there are no other selections. When _cm_changeConfig() is called after getData() the $where string will be empty and $fieldarray will show the complete contents of the current record. Any changes you make to $fieldarray at this point will not affect the scroll bars.

If you wrap your code in the following condition it will work in the _cm_changeConfig() method:

Code: [Select all] [Show/ hide]

if (empty($where) AND !empty($fieldarray)) {
    if (!isset($fieldarray['abc'])) $fieldarray['abc'] = 'anything';
} // if

Tony Marston
http://www.tonymarston.net
http://www.radicore.org

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Re: Missing scroll bar [message #4625 is a reply to message #4624]

Sun, 16 November 2014 13:28

kong
Messages: 90
Registered: December 2011

Member

I understand now. Thank you.

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