[CLOSED] Uncaught TypeError: Cannot read property 'isSynchronized' of undefined
Sometimes, I'm getting this error when try to expand RowExpander.
It works many times before the error happens.
This is the stack:
Uncaught TypeError: Cannot read property 'isSynchronized' of undefined
at F.removeCls (ext.axd:19)
at F.destroy (ext.axd:19)
at F.destroy (ext.axd:19)
at F.destroy (ext.axd:19)
at Object.destroy (ext.axd:19)
at F.beforeDestroy (ext.axd:19)
at F.callParent (ext.axd:19)
at F.beforeDestroy (ext.axd:404)
at F.callParent (ext.axd:19)
at F.beforeDestroy (ext.axd:1274)