private void LaodDocExpire()
{
Cv_Flag = false;
string cmd = " SELECT AlertByDayAfter FROM Users";
int Fv_DaySetting = 0;
int.TryParse(Cv_Session.GetFieldText(cmd), out Fv_DaySetting);
cmd = "SELECT Id,DocName FROM ViewDocuments WHERE (" + Fv_DaySetting + " >= DATEDIFF(d, GETDATE(), ExpireDate))";
Cv_Session.FillTreeNode(treeDocExpire, cmd, 0);
Cv_Flag = true;
}