R – Changing SPList Inherit Parent Permissions property using C#

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I have a Document Library for which I need to add a user (SPRoleAssignment object). But since the SPList inherits the Roles from the parent web, it does not allow me to add for this SPList object alone. To add SPRoleAssignment object to this list alone, there is an option in UI, to create a separate copy of permissions for this SPList object alone. But how do I do this using a C# program?

Best Answer

Take a look at the SPList.BreakRoleInheritance method.

yourList.BreakRoleInheritance(true);

You can pass true to copy the role assignments from the parent Web site, or pass false to add the current user to the permission level required to manage the list.

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R – CustomAction not appearing in ListView web part for SPList that does not inherit permissions

I was never able to get this working as described in my question.

To solve my problem, I instead created a custom control for the menu item ("My Upload") and the control does the security check using the permissions on the document library.

R – SharePoint problem while adding custom menu item in document library

you may need to try and elevate their permissions in the code.

SPSecurity.RunWithElevatedPrivileges(delegate()
{
    using (SPSite site = new SPSite(web.Site.ID))
    {
    // implementation details omitted
    }
});

run with elevated permissions

Best Answer

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