Value in rowupdating event
URL authorization rules can specify roles instead of users.The Login View control, which renders different output for authenticated and anonymous users, can be configured to display different content based on the logged in user's roles.
This may entail showing or hiding data based on the user's role, or offering additional functionality to users that belong to a particular role.
If the user's browser does not support cookies, or if their cookies are deleted or lost, somehow, it's no big deal – the Note Microsoft's Patterns & Practices group discourages using persistent role cache cookies.
Since possession of the role cache cookie is sufficient to prove role membership, if a hacker can somehow gain access to a valid user's cookie he can impersonate that user.
Net Grid View control with simple Data Set or Data Table, and also explains the methods like Insert, Edit, Update and Delete function in the Grid Viewcontrol.to bind a Grid View control to the database with some Data Source controls such as SQLData Source, Object Data Source, Access Data Source and even XMLDatasource.
This tutorial starts with a look at how the Roles framework associates a user's roles with his security context.
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And the Roles API includes methods for determining the logged in user's roles.