How to delete a sub-set of functions batch delete button

Realization of ideas: a collection of registered sub-function rendering form fields before the event, the bulk delete button hidden away.

1. Find a table object
2. Operation column objects found actioncolumn
3. The operation of the column items actioncolumn replace

4. function(field){

   5. var grid=field.grid;

   6. was actionColumn = null;

   7. for(var i=0;i< p="">

   8. if(grid.columns[i].xtype=='actioncolumn'){

   9. actionColumn=grid.columns[i];

   10. break;

   11. }

   12. }

   13. if(actionColumn){

   14. var items=actionColumn.items;

   15. var newItems=new Array();

   16. Ext.each(items,function(item){

   17. if (item.tooltip! = 'mass delete') {

   18. newItems.push(item);

   19. }

   20. })

   21. actionColumn.items=newItems;

   22. }

   23. }

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