Hello, everyone!

I need help, bacause i felt to a deadlock :(

I use asp.net mvc v5.1 with ext.net.
For my task i use gridView with rowExpander plugin from example (https://mvc.ext.net/#/GridPanel_RowExpander/Component/) with FormPanel with 1 btn Save to correct data in row and db. I create this grid from code behind. Button 'Save' have DirectEvent to change data in db, remove gridView and create gridView with new data. At first use, evething is right (new data in db, new gridView created, old gridView removed), after second row edit -> click button -> error in console: js TypeError: Cannot set property 'ignoreAllSubmitFields' of null in ext.net (in explorer: Ext.getDom(o.form).ignoreAllSubmitFields=true;):(

Any Ideas?