What are these parameters to the functions?
Tue, 08/09/2011 - 06:31
Almost any and all functions which work on events launched by a Control click have these as the parameters:
$strFormId, $strControlId, $strParameter
Now, I can guess that ControlId is the ID generated as the flow of the page goes. I believe it is the c6_ctl and c6 in the following piece of code created by QC:
<div id="c6_ctl" style="display:inline;"><div id="c6">
FormId should be the name of the form, which I believe is what we pass as the agrument in the Run function of the QForm.
Now, what is this strParameter? Is it supposed to contain user-provided parameters? If yes, then how?
And if it not a variable to hold the user-provided parameters, what exactly is it and how to utilize it?
Regards,
Vaibhav
It is the action parameter of the control. You set it via
<?php$control->ActionParameter = $something;
?>
Cheers
Helge
Thanks Helge,
Can you tell me what use is that of? May be I am being too dumb but, it would be of good help if you could explain that :|
Regards
Hi Vaibhav, for example you want to store an id field value in that control.
Typically I use it in QDatagrid's, when create a column with a control and I want to perform some action on the control refers to the row, but... how I pass the value of the current row?
Well when create the control I complete added the following code...
<?php
$Control->ActionParamter = $Person->Id;
// Person is the object binded on the Row.
?>
And the in the Event Handler I use it...
<?php
$PersonId = cint($strParameter);
$PersonManager->Delete($PersonId);
?>
Just remember, the ActionParameter is a string value and only you can pass just one parameter. If you need pass more surely need to parse the string to get values, something like this...
<?php$Control->ActionParameter = 'Jhon,Foo,28';
?>
and then get it...
<?php
$Parameter[] = split($strParamter,',');
echo $Parameter[0]; //John
echo $Parameter[1]; //Foo
echo $Parameter[2]; //28
?>
Hope It's Help you.
Regards, JMI
Thanks a lot for that great help. I just wanted to know what exactly would be the use of that parameter and you have helped me so much by explaining it :)
Thanks again.
Regards,
Vaibhav