[RESOLVED] EntityDataSource + GridView not updating and/or deleting!

Hello everybody.

I am trying to use EntityDataSource with GridView and take advantage of its "automatic query generation" feature. 

According to the MSDN docs: "The ListView, FormView, DetailsView,
and GridView Web server controls provide automatic read, insert, update, and delete functionality when used with anEntityDataSource control."

After few experiments, while reading data works fine, I can't get Update and Delete to work. 

Please take a look at the code I wrote:

ASPX: http://pastebin.com/svy0yvev

CodeBehind: http://pastebin.com/VHG9Jc0G

Basically, I can see the table with my data. I can see the Edit and Delete buttons. If I click the Delete link, the page reloads and nothing happens. If I click the Edit link, I switch to Edit mode. However, when I press the Update link, the page reloads
and nothing happens. 

I can see the _RowEditing, _RowUpdating and _RowDeleting events are fired. However, I never get to _RowUpdated or _RowDeleted.

Should not EntityDataSource take care of executing the low-level queries? Why is this not happening?

Thanks all for your help!

Cheers,

Gianluca.

For the entity datasource you will need a primary key for the table.it allows you to change the records...i think you may be missed setting of primary key .

Refer bellow post

http://stackoverflow.com/questions/13425270/aspentitydatasource-failing-to-update-or-delete-gridview