I have juste started working with Ext Direct specifications. My page, has a grid + a form for the same model. After having supplied the right "api" functions for both the store + the form, to update and read from a real database, I have seen that :
- on ther server side, posting data through a form is almost the same as creating/updating new items through the store
- posting data through the form doesn't refresh the grid, and I have to do it manually, which is will request again fill the store with data. This might be more resource consuming than making an update through the store. But what if my grid is paged, and the added element is not apart of the current page...

Any suggestions, and explanations would help thanks !!