Question

I created Extjs.Panel and now I would like to dynamically load a content to it. So I wrote this simple code

Ext.get('contentPanel').load({
                    url: '@Url.Action("TempView","Home")'

                    });

After executing this function, panel is populated with TempView, however couple of seconds later I get an error in Extjs library

Microsoft JScript runtime error:Unable to get value of the property
‘events’: object is null or undefined.

EDIT
I flollowed @DmitryB advice and I used debug version of library. Here is what I found out. It turned out that the problem is in function

getElementEventCache 

which is defined in file ext-all-debug.js in line 11108. The function looks this way

getElementEventCache : function(element) {
        if (!element) {
            return {};
        }
        var elementCache = Ext.cache[this.getId(element)];
        return elementCache.events || (elementCache.events = {});
    },

The exception is thrown in the last line, because of the fact that elementCache is null.

Here is the stacktrace from visualstudio

Answer 1

I had a very similar error that was resolved by adding the following line. (from this forum thread)

if(Ext.isIE) {
    Ext.enableGarbageCollector=false;
}