There already are questions how to get custom error handling, with answers, but all those answers use 'external' reference/selector to the grid to make it work, for example:
function onError(e) {
if (e.errors) {
var message = "Error:\n";
var grid = $('#gridID').data('kendoGrid'); // <<- here
(...)
}
Is it possible to get the reference to the grid from inside the error handling function without providing the selector by hand or 'externally' (because global variables are meh)? That way the error handling script could be totally self-contained.
Apparently, the source grid can now be retrieved via e.sender.table.context.id
. Thanks, Akbari!
Solution below won't work. It seems that table
member is missing from data source.
My workaround was quite crude, just using selectors to grab all k-grid
elements which return not-null for .data("kendoGrid")
and compare the data sources with arg.sender
. When the data sources match - we have a grid which raised the error:
$(".k-grid").each(function() {
var grid = $(this).data("kendoGrid");
if (grid !== null && grid.dataSource == args.sender) {
// We have a winner!
}
});
Turns out - after browsing the Internet for quite a bit - that it is possible. So here it goes, for anyone searching for the answer sometime in the future, maybe even future-me.
Inside the function, this
is not bound to a grid, but to a DataSource
that the grid uses internally, so it can't really be used directly to alter the error-handling behavior. A little bit of poorly documented magic is needed.
It means that (as of Kendo UI MVC version 2013.3.1119.545) the following can be used:
e.sender.options.table.context
to return the wrapping grid (DOM element), while
e.sender.options.table.context.id
returns grid's ID.
It means that, with jQuery, the grid can be retrieved by:
var grid = $(e.sender.options.table.context).data("kendoGrid");
And the rest of the error-handling script remains exactly the same.
Technically, both this
bound in the scope and sender
seem to be the same thing - grid's DataSource
, so they should be interchangeable in the example above.