diff --git a/CSharp.Nixill/src/Grid/DataTableParser.cs b/CSharp.Nixill/src/Grid/DataTableParser.cs
index b1cf267..6dc819e 100644
--- a/CSharp.Nixill/src/Grid/DataTableParser.cs
+++ b/CSharp.Nixill/src/Grid/DataTableParser.cs
@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Data;
 using System.IO;
+using System.Linq;
 using Nixill.Utils;
 
 namespace Nixill.Collections.Grid.CSV;
@@ -54,6 +55,15 @@ public static DataTable EnumerableToDataTable(IEnumerable<char> input,
             types.Add(typeof(string));
           }
         }
+
+        if (primaryKey != null)
+          table.PrimaryKey = primaryKey.Select(x => table.Columns[x]).ToArray();
+
+        isHeaderRow = false;
+      }
+      else
+      {
+
       }
     }
   }