Template file: Sample1.page
Class file: Sample1.php
Template file: Sample2.page
Class file: Sample2.php
Template file: Sample3.page
Class file: Sample3.php
Template file: Sample4.page
Class file: Sample4.php
Template file: Sample5.page
Class file: Sample5.php

/ActiveControls/Samples/TActiveDataGrid/Sample4.php

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<?php
 
Prado::using('Application.pages.ActiveControls.Samples.TActiveDataGrid.Sample2');
 
class Sample4 extends Sample2
{
    protected function sortData($data,$key)
    {
        $compare = create_function('$a,$b','if ($a["'.$key.'"] == $b["'.$key.'"]) {return 0;}else {return ($a["'.$key.'"] > $b["'.$key.'"]) ? 1 : -1;}');
        usort($data,$compare) ;
        return $data ;
    }
 
    public function sortDataGrid($sender,$param)
    {
        $this->DataGrid->DataSource=$this->sortData($this->Data,$param->SortExpression);
        $this->DataGrid->dataBind();
    }
}
 
?>