[Solved] Empty grid will send a ajax request automatically? part 2

[Alexandre Jobin]

since that the other thread have been locked (link) , i will write my message here!

heres a summary of the behavior: the grid makes an ajax request initially when empty and ajax is enabled
heres the workaround if you don't want to fire an ajax request on empty grid:

$.fn.tGrid = function(options) {
        options = $.extend({}, $.fn.tGrid.defaults, options);

        return this.each(function() {
        options = $.meta ? $.extend({}, options, $(this).data()) : options;

        if (!$(this).data('tGrid')) {
            var grid = new $t.grid(this, options);

        $(this).data('tGrid', grid);

        if (grid.$tbody.find('tr.t-no-data').length)
             grid.ajaxRequest();
        }
    });
}

i understand that many developers use this behavior (send an ajax requestion automaticly if the grid is initialized with empty data) and that you can't change the code as easly as we would but maybe you could add a boolean property SendAjaxRequestOnEmptyGrid on the grid?. Because the problem with the workaround is that we need to patch the code for each new version that you release!

hope that this feature would be considerated!

alex

[Atanas Korchev]

Hi Alexandre Jobin,

There is a simpler and supported way to prevent the grid from binding - cancelling the OnDataBinding client-side event the first time. 

Regards,
Atanas Korchev
the Telerik team

[Alexandre Jobin]

do you have an example of the code to cancel only the first call?

[Atanas Korchev]

Hello Alexandre Jobin,

 We don't have such an example but the implementation should be trivial. Simply toggle some flag:

var firstTime = true;

function onDataBinding(e) {
      if (firstTime) {
           e.preventDefault();
           firstTime  = false;
      }
}

Regards,
Atanas Korchev
the Telerik team