private void AuthoriseUser()
{
gvRoles.Columns["Actions"].Visible = Master.LoggedUser.IsUserAuthorised(Enums.Rights.UserManagement_Roles_Delete);
gvRoles.Columns[1].Visible = Master.LoggedUser.IsUserAuthorised(Enums.Rights.UserManagement_Roles_Edit)
|| Master.LoggedUser.IsUserAuthorised(Enums.Rights.UserManagement_Roles_View);
gvRoles.Columns[2].Visible = !gvRoles.Columns[1].Visible;
if (!Master.LoggedUser.IsUserAuthorised(Enums.Rights.UserManagement_Roles_Search))
{
Response.Redirect(Constants.URL_UNAUTHORISEDACTION, false);
}
}