protected void gvUsers_RowDeleting(object sender, DevExpress.Web.Data.ASPxDataDeletingEventArgs e)
{
int i = gvUsers.FindVisibleIndexByKeyValue(e.Keys[gvUsers.KeyFieldName]);
e.Cancel = true;
UserObj.UsersId = (int)e.Keys[gvUsers.KeyFieldName];
if (UserObj.Delete())
{
this.LoadUsers();
}
}