for (int i = 0; i < lstRecData.Count; i++)
{
if (lstRecData[i].strRecDesc.ToUpper() != strContactVib && lstRecData[i].strRecPriority == "3")
{
if (!lstRecData.Contains("Schedule Maintenance:" + lstRecData[i].strRecDesc"))
lstRecData[i].strRecDesc = "Schedule Maintenance:" + lstRecData[i].strRecDesc;
}
}