Rejecting changes on a grid in ExtJS 4.0

[StutiAwasthi]

Hi all..!

I am in the process of changing a web application from ExtJS 1.1 to ExtJS 4.0.
Can anyone please tell me how to reload the grid in case of ExtJS 4.0.?
The ExtJS 1.1 equivalent is shown below:

var reloadGrid = function(){
grid.getDataSource().rejectChanges();
grid.getDataSource().reload({params:{start: 0, limit: paging.pageSize}});
tabs.activate('view');
tabs.disableTab('edit');
};

Any other comments on the code are also welcome.

Thank you in advance!

[mitchellsimoens]

At what point do you want to reject changes?

[StutiAwasthi]

I am sorry... I actually want to reload the grid. By mistake I wrote it as reject. Can u help? I have made the changes in the post, please check.

[mitchellsimoens]

If you reload the store or change any of it's data, the grid will automatically reflect these changes.

[StutiAwasthi]

Thank you!