LINQ over DataSets

Did you know you can LINQ over DataSets too? Well it’s pretty easy. So if you are doing something like this:

 foreach (DataRow row in dt.Rows)
{
  if (tempEvent.JobHandlerConfig.LicenseKey.Value.Equals(
                            int.Parse(row[0].ToString()))) 
  {
    valid = true;
    break;
  }

}

You can instead do this with LINQ:

 valid = dt.AsEnumerable().Where(p => p.Field<int>(0).
                   Equals(tempEvent.JobHandlerConfig.LicenseKey.Value)).Count() > 0;

Tip By: David McCarter