New Batch Editing modified cell count

[Massimiliano]

I'm struggling to find a way to retrieve if any cell has really been modified through batch editing.
I'd like to show the SAVE CHANGES and CANCEL CHANGES buttons, only if some editing really took place.
I already found to show/hide a button inside a toolbar in the Command Item template but I'm struggling to know if is there any cell that have been modified (when the little red triangle in the corner appear).
I went down to the ._changes object but with no much luck since the object is empty at start but if you modify a cell and then revert it back to initial value, the ._changes object is no more empty even if no red triangles appear and no batch editing happened after all.

Here is what I come up with so far (but it doesn't work for the reason above):

function ShowBatchUpdateButton() {
    var toolBar = $find("RadToolBar1");
    var button = toolBar.findItemByText("Nuovo");
    var grid = $find("<% = RadGrid1.ClientID %>");
    if (!jQuery.isEmptyObject(grid.get_batchEditingManager()._changes)) {
        button.set_cssClass("ShowGridCommandBarButton")
    } else {
        button.set_cssClass("")
    }
}

How can I spot if there are any red marks on the grid? (because this is what I'm looking for to show/hide the UPDATE and CANCEL buttons in real time)

[Konstantin Dikov]

Hello Massimiliano,

As you have found out, ._changes object does not remove elements when a cell is modified back to its original value. That is made that way by design and you will not be able to use it in your case.

In order to check if there are any cells with changed values, you could search the grid for elements with rgBatchChanged class. If none exist in the grid you could hide the commands table, or else you could show it.

I have modified your code so that the if/else statement will determine if there are any changes:

function ShowBatchUpdateButton() {
    var toolBar = $find("RadToolBar1");
    var button = toolBar.findItemByText("Nuovo");

    var grid = $find("<%= RadGrid1.ClientID %>");
    var gridElement = $(grid.get_id);
    var changes = gridElement.find(".rgBatchChanged");

    if (changes.length > 0) {
        button.set_cssClass("ShowGridCommandBarButton")
    } else {
        button.set_cssClass("")
    }
}

If you have any further questions, please feel free to get back to us.
 
Best Regards,
Konstantin Dikov
Telerik

[Massimiliano]

Konstantin you are a damn genius!
I would have never thought of looking for the red corner class to count the items!
Thanks that's awesome.

Now I have a general issue with BatchEdit mode triggering errors alltogether but I guess I will open another topic on that subject, to have better references for all other forum users as well.
Thanks again.