Prevent SharePoint list item deletion

Question

How can I prevent users from deleting sharepoint task list item? Should i override the ItemDeleting event or is there any other site level options available to achieve the same?

Mixie

Answer 1

You could also set up a custom permission level out of the box.

1. Navigate to your Site Collection (if you're in a subsite, you can go to Site Actions -> Site Settings -> Go to top level site settings)
2. Site Actions -> Site Settings -> Advanced permissions
3. Click Settings -> Permission Levels
4. Click Add a permission level

I would recommend using the existing "Contribute" permission level as a guide and just uncheck the "Delete Items" list permission. Then, you can give your users that permission to the list.

Paramorphism

Agreed with this approach. I've done this and called the permission level something like "Contribute without Delete" – Ripieno

Answer 2

You can use List Item Event Receiver, ItemDeleting method:

public override void ItemDeleting(SPItemEventProperties properties)
{
    properties.ErrorMessage = "User don't have permission";
    properties.Cancel = true;
}

Semifluid