How can I get access to components created at runtime in a dynarea? / PHsPeed version 3.x / Forums

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VictorUlloa

1 month ago

Hi,

I managed to create a drop down component inside a dynarea, and populate it at runtime with values from a database table.

function dynarea_1_onGetData($app)
{
  // Create a row, a column and a dropdown inside the dynamic area

   $this->addRow('row_compuestos');
   $this->addCol('col_compuestos','row_compuestos');
   $field=$this->addField('col_compuestos',new spdbdropdown('drop_compuestos',$this->form));
   $field->label='Compuesto que adicionará';

   // Populate drop down with values from a database table

   $r = $$dbsq_compuestos->simpleOpen(true);
   while (! $$dbsq_compuestos->eof) {
      $field->AddItem($r['pkCompuesto'],$r['nombreCompuesto']);
      $r = $$dbsq_compuestos->simpleRead();
   }
   $$dbsq_compuestos->Close();

}

Now, I need to check the selected value in the onEndProcessRows event of a standard DBgrid I put in the same form.

Can I get the value, and if so, how? I was guessing at something like

myvalue = $$dynarea_1->fields['mydropdown']-> value;

But have not found the correct syntax...

Thank you very much.

administrator

1 month ago

As this is a dynamic field, it is not added to the internal component list, that retrieves and caches the result automatically. Although in the upcoming version we have added functionality to retrieve values similar to your explanation, the easiest way to retrieve the values is using the rtrGetVar function. Suppose you have a field 'myfield' created, then you can access the value by rtrGetVar('myfield', ''); The second value is used as a default if the 'myfield' is not found. Don't use the $_POST fields directly as these values are not protected against XSS etc. rtrGetVar does.