The 'loader' function contains all the request parameters sent to server. Please override it to get these parameters.
$('#dg').datagrid({
loader: function(param, success, error){
console.log(param)
var opts = $(this).datagrid('options');
if (!opts.url) return false;
$.ajax({
type: opts.method,
url: opts.url,
data: param,
dataType: 'json',
success: function(data){
success(data);
},
error: function(){
error.apply(this, arguments);
}
});
}
})