Remove invalid and unclassified spectral classification information from the modified export module

OTSIncAReportApp/3-ServiceCenter/DataOperation/DataAccess/ParticleData.cs

@@ -384,7 +384,7 @@ namespace OTSIncAReportApp.DataOperation.DataAccess
 		/// <returns></returns>
 		public DataTable GetAreaByAllIncA(string fieldAndPartic)
         {
-            string sqlp = @"select TypeId,TypeName,GroupId,sum(area) as ar,count(1) as con ,GroupName from INcAData where typeid !=-1 and typeid !=4";
+            string sqlp = @"select TypeId,TypeName,GroupId,sum(area) as ar,count(1) as con ,GroupName from INcAData where typeid !=-1 and typeid !=4 and ParticleId > -1";
             if (fieldAndPartic != "")
             {
                 sqlp = sqlp + " and '" + fieldAndPartic + "' like ('%,'||fieldid||'-'||particleid||',%')";