I have looked around at a few links on SO and outside of SO and have seen alot of this type of question, but nothing in the way of why this happens on a toolbar button.
Here is a dojo of it..
I was able to get it to work by targeting the window with the kendo data attribute and using the open function:
function ImClicked(e) {
//alert(e.target.text() + " is clicked");
var item = $("#showMyWindow"),
wnd = item.data("kendoWindow");
item.kendoWindow({
width: "505px",
height: "315px",
title: "Hey I'm a Title",
content: "Howdy, I'm a winda",
modal: true,
actions: [
"Close"
],
close: function (e) {
$("#showMyWindow").empty();
}
}).data("kendoWindow").center();
wnd.open();
};
Found this solution in this Telerik forum post: http://www.telerik.com/forums/window-only-opens-once