Hello, can you please help me ? I cannot pass datetime pikers parameters to my query ... widely inspired from your examples ... When I add in line 60 of actions_par_pays.php the parameters "startDatePicker", "endDatePicker" it bugs ... As shown in the listing, if I use fixed date parameters in the query, it works, so it is not the query that is wrong, but the part of public fonction setup() : params array ( ) I send you my linstings
index.php
<?php include "../../../helpers/run.example.php";?>
__actions_par_pays.php__
<?php
require_once "../../../load.koolreport.php";
use \koolreport\KoolReport;
use \koolreport\processes\CalculatedColumn;
use \koolreport\processes\ColumnMeta;
class ActionsParPays extends \koolreport\KoolReport
{
    use \koolreport\inputs\Bindable;
    use \koolreport\inputs\POSTBinding; 
	
	protected function defaultParamValues()
    {
        return array(
			"sauf"=>"--",
			"startDatePicker"=>date("2019-01-01 00:00:00"),
            "endDatePicker"=>date("2025-12-31 23:59:59")
			
        );
    }
	protected function bindParamsToInputs()
    {
        return array(
            "sauf",
			"startDatePicker",
            "endDatePicker"
					
        );
    }
	public function settings()
    {
        $config = include "../../../config.php";
        return array(
            "dataSources"=>array(
                "phamm"=>$config["phamm"]
            )
        );
    }
    public function setup()	
    {
        $this->src('phamm')
        ->query("
            select `expeditions`.`pays` , `pays`.`country` , `expeditions`.`date_expedition` as date, count(`expeditions`.`pays`) as nombre
			from `expeditions`
			inner join `pays` on `expeditions`.`pays`= `pays`.`pays`	
			where 
			`expeditions`.`pays` <> :sauf 
			and 
	`expeditions`.`date_expedition` < '2021-01-01'
	and
	`expeditions`.`date_expedition` > '2019-12-31'	
			group by `expeditions`.`pays`
			")
		->params(array(
			":sauf"=>$this->params["sauf"]
			
			
						
		))	
        ->pipe(new CalculatedColumn(array(
            "tooltip"=>"'{expeditions.pays} : $'.number_format({nombre}).'{pays.country}'",
        )))
        ->pipe(new ColumnMeta(array(
            "tooltip"=>array(
                "type"=>"string",
            )
        )))
        ->pipe($this->dataStore("expeditions"));
    }
}
actions_par_pays.view.php
<?php
use \koolreport\widgets\koolphp\Table;
use \koolreport\widgets\google\GeoChart;
use \koolreport\inputs\DateTimePicker;
use \koolreport\inputs\Select;
?>
<div class='report-content'>
    <div class="text-center">
        <h1>Actions Par Pays</h1>
        <p class="lead">Le rapport montre le nombre d'expéditions dans chaque pays</p>
    </div>
<form method="post">
	 <div class="col-md-12 form-group">
                <html lang="fr">
                <div class="row">
                     <div class="col-md-6">
                        From Date:
                        <?php
                        DateTimePicker::create(array(
                            "name"=>"startDatePicker",
                            "maxDate"=>"@endDatePicker",
                            "format"=>"MM/DD/YYYY HH:mm",
                            "themeBase"=>"bs4",
                        ));
                        ?>
                    </div>
                    <div class="col-md-6">
                        To Date:
                        <?php
                        DateTimePicker::create(array(
                            "name"=>"endDatePicker",
                            "minDate"=>"@startDatePicker",
                            "format"=>"MM/DD/YYYY HH:mm",
                            "themeBase"=>"bs4",
                        ));
                        ?>
                    </div>
						<strong>Sauf</strong>
						<?php
						Select::create(array(
						"name"=>"sauf",
						"dataStore"=>$this->dataStore("expeditions"),
						"defaultOption"=>array("--"=>""),
						"dataBind"=>"pays",
						"attributes"=>array(
                        "class"=>"form-control",
						)
						));
						?>
					</div>
	 </div>
                <div class="col-md-3 " ;">
				<button class="btn btn-lg btn-primary">O.K.</button>
				</div>
				</div>
				 <p class="form-group">
            <i>* Below are values that archived from <code>$params</code>
            </i>
        </p>                        
				<pre><code><?php echo json_encode($this->params,JSON_PRETTY_PRINT) ?></code></pre>
</form>
   
    <?php
    GeoChart::create(array(
        "dataStore"=>$this->dataStore("expeditions"),
        "columns"=>array(
            "country"=>array(
                "label"=>"Pays"
            ),
            "nombre"=>array(
                "label"=>"Actions",
                "type"=>"number",
                "prefix"=>""
            )
        ),
        "width"=>"100%",
		"height"=>"350",
		"options"=>array(			
			"colorAxis" => ["colors"=> ['orange', 'red']],
			"backgroundColor"=> '#81d4fa',
			"showTooltip"=> true,
            "showInfoWindow"=> true     
			
        )
    ));
    ?>
    <?php
    Table::create(array(
        "dataStore"=>$this->dataStore("expeditions")->sort(array("nombre"=>"desc")),
        "columns"=>array(
            "pays"=>array(
                "label"=>"Pays"
            ),
            "nombre"=>array(
                "label"=>"Expeditions",
                "type"=>"number",
                "prefix"=>"",
            )
        ),
        "paging"=>array(
            "pageSize"=>10,
        ),
        "cssClass"=>array(
            "table"=>"table table-bordered table-striped"
        )
    ));
    ?>
	
</div>