Since you're using kendo which you must include jQuery. To make life easier why don't try to use jQuery, as per my suggestion at the moment i don't know any other way but to

• get & loop through the grid datasource




• get the date and push it into an array

For example i create button <button id=test>Click here</button> and kendo console <div class=console><div> so you can see the result after clicking the button. Here goes the code :

$(#test).click(function(){

    var arrayDate = [];

    var data =$(#grid).data(kendoGrid).dataSource._data;

    for(i=0; i<data.length; i++){

      arrayDate.push(data[i].OrderDate);

    }  

    kendoConsole.log(arrayDate);

});

Here is working example for you on kendo dojo