c# を使用して VisualStudio で Sql を使用しようとしていますが、System.Data.dll で発生した 'System.Data.SqlClient.SqlException' 型の未処理の例外がスローされます
comm = new SqlCommand("INSERT INTO HafizwalaTable(DistrictName, TownName, FarmerName, " +
"Area, VarietyOfCrop, SowingDate, VisitDate, PestPopulation1, " +
"PestPopulation2, PestPopulation3, PestPopulation4, PestPopulation5, " +
"PestPopulation6, PestPopulation7, PestPopulation8, PestPopulation9, " +
"PestPopulation10, PestPopulation11, PestPopulation12, PesticideUsed, " +
"PesticideSprayDate, PesticideDosage, CLCV, PlantHeight) " +
"VALUES @p1,@p2,@p3,@p4,@p5,@p6,@p7,@p8,@p9,@p10,@p11, " +
"@p12,@p13,@p14,@p15,@p16,@p17,@p18,@p19,@p20,@p21,@p22,@p23,@p24)", con);
comm.Parameters.AddWithValue("@p1",FileReaderDataArray[RowNo, 0]);
comm.Parameters.AddWithValue("@p2",FileReaderDataArray[RowNo, 1]);
comm.Parameters.AddWithValue("@p3",FileReaderDataArray[RowNo, 2]);
comm.Parameters.AddWithValue("@p4", FileReaderDataArray[RowNo, 3]);
comm.Parameters.AddWithValue("@p5", FileReaderDataArray[RowNo, 4]);
comm.Parameters.AddWithValue("@p6", FileReaderDataArray[RowNo, 5]);
comm.Parameters.AddWithValue("@p7", FileReaderDataArray[RowNo, 6]);
comm.Parameters.AddWithValue("@p8", FileReaderDataArray[RowNo, 7]);
comm.Parameters.AddWithValue("@p9", FileReaderDataArray[RowNo, 8]);
comm.Parameters.AddWithValue("@p10", FileReaderDataArray[RowNo, 9]);
comm.Parameters.AddWithValue("@p11", FileReaderDataArray[RowNo, 10]);
comm.Parameters.AddWithValue("@p12", FileReaderDataArray[RowNo, 11]);
comm.Parameters.AddWithValue("@p13", FileReaderDataArray[RowNo, 12]);
comm.Parameters.AddWithValue("@p14", FileReaderDataArray[RowNo, 13]);
comm.Parameters.AddWithValue("@p15", FileReaderDataArray[RowNo, 14]);
comm.Parameters.AddWithValue("@p16", FileReaderDataArray[RowNo, 15]);
comm.Parameters.AddWithValue("@p17", FileReaderDataArray[RowNo, 16]);
comm.Parameters.AddWithValue("@p18", FileReaderDataArray[RowNo, 17]);
comm.Parameters.AddWithValue("@p19", FileReaderDataArray[RowNo, 18]);
comm.Parameters.AddWithValue("@p20", FileReaderDataArray[RowNo, 19]);
comm.Parameters.AddWithValue("@p21", FileReaderDataArray[RowNo, 20]);
comm.Parameters.AddWithValue("@p22", FileReaderDataArray[RowNo, 21]);
comm.Parameters.AddWithValue("@p23", FileReaderDataArray[RowNo, 22]);
comm.Parameters.AddWithValue("@p24", FileReaderDataArray[RowNo, 23]);
comm.ExecuteNonQuery();
さらに、すべての列のデータ型は nvarchar です