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dhtmlxconnector and special characters

When I try to load on the dhtmlxgrid data with accents or special characters like & get an error "Incorrect XML"

To load the data I'm using dhtmlxconnector
         
Is there a way to solve this

Which component is used in problematic case?
Normally , connectors wraps all data in CDATA sections, so special chars can be processed without extra handling. 

You can try to use beforeRender event to workaround the issue.
function my_escape($data){
           $value = $data->get_value("field_name");
           $value = str_replace("&","&",$value);
           $data->set_value("field_name",$value);
}
$comp->event->attach("beforeRender","my_escape");

>>with the Spanish accent (á, é, í, ó, ú)
Which encoding you are using for data storage?
By default connector expect urf-8 usage, if you are using different encoding ( iso-8859-1 most probably ) you need to add the next line to the connector initialization code


$grid->set_encoding("iso-8859-1"); //sets xml encoding
$grid->render_ ...