C＃插入DataGridView數據到數據庫成功，但只返回第一個值n次？

Question

任何想法，爲什麼這隻返回5行DGV的DataGridView的第一個值？ SQL應該插入成功，我的循環中一定有什麼問題，我沒有拿起。理想情況下，它應該返回datagridview中的5行值而不僅僅是第一行，從而有效地將整個datagridview傳送到數據庫中。

using (OleDbConnection conn = new OleDbConnection(Con)) 
using (OleDbCommand cmd = new OleDbCommand()) 
{ 
    cmd.Connection = conn; 
    conn.Open(); 
    for (int i = 0; i <= DGVExcel.Rows.Count - 1; i++) 
    { 
     cmd.CommandText = 
      "Insert INTO ACTB (FirstName, LastName, GrossIncome, LessTNT, TaxableIncomeCE, TaxableIncomePE, GrossTaxableIncome, LessTE, LessPPH, NetTax, TaxDue, HeldTaxCE, HeldTaxPE, TotalTax) " + 
      "VALUES(@First, @Last, @Gross, @LessTNT, @TCI, @ADDTI, @GTI, @LessTE, @LessPPH, @LessNTI, @TD, @TWCE, @TWPE, @TATW)"; 
     //cmd.Parameters.AddWithValue("@ID", Convert.ToInt32(txtID.Text)); 
     cmd.Parameters.AddWithValue("@First", DGVExcel.Rows[i].Cells[0].Value); 
     cmd.Parameters.AddWithValue("@Last", DGVExcel.Rows[i].Cells[1].Value); 
     cmd.Parameters.AddWithValue("@Gross", Convert.ToDouble(DGVExcel.Rows[i].Cells[2].Value)); 
     cmd.Parameters.AddWithValue("@LessTNT", 
      Convert.ToDouble(DGVExcel.Rows[i].Cells[3].Value)); 
     cmd.Parameters.AddWithValue("@TCI", Convert.ToDouble(DGVExcel.Rows[i].Cells[4].Value)); 
     cmd.Parameters.AddWithValue("@ADDTI", Convert.ToDouble(DGVExcel.Rows[i].Cells[5].Value)); 
     cmd.Parameters.AddWithValue("@GTI", Convert.ToDouble(DGVExcel.Rows[i].Cells[6].Value)); 
     cmd.Parameters.AddWithValue("@LessTE", Convert.ToDouble(DGVExcel.Rows[i].Cells[7].Value)); 
     cmd.Parameters.AddWithValue("@LessPPH", 
      Convert.ToDouble(DGVExcel.Rows[i].Cells[8].Value)); 
     cmd.Parameters.AddWithValue("@LessNTI", 
      Convert.ToDouble(DGVExcel.Rows[i].Cells[9].Value)); 
     cmd.Parameters.AddWithValue("@TD", Convert.ToDouble(DGVExcel.Rows[i].Cells[10].Value)); 
     cmd.Parameters.AddWithValue("@TWCE", Convert.ToDouble(DGVExcel.Rows[i].Cells[11].Value)); 
     cmd.Parameters.AddWithValue("@TWPE", Convert.ToDouble(DGVExcel.Rows[i].Cells[12].Value)); 
     cmd.Parameters.AddWithValue("@TATW", Convert.ToDouble(DGVExcel.Rows[i].Cells[13].Value)); 
     cmd.ExecuteNonQuery(); 
    } 
} 

Answer 1

您需要在循環過程中爲每個新插入調用初始化您的OleDdCommand。試試這個：

using (OleDbConnection conn = new OleDbConnection(Con)) 
{ 
    conn.Open(); 
    for (int i = 0; i <= DGVExcel.Rows.Count - 1; i++) 
    { 
     OleDbCommand cmd = new OleDbCommand(); 
     cmd.Connection = conn; 

     cmd.CommandText = 
      "Insert INTO ACTB (FirstName, LastName, GrossIncome, LessTNT, TaxableIncomeCE, TaxableIncomePE, GrossTaxableIncome, LessTE, LessPPH, NetTax, TaxDue, HeldTaxCE, HeldTaxPE, TotalTax) " + 
      "VALUES(@First, @Last, @Gross, @LessTNT, @TCI, @ADDTI, @GTI, @LessTE, @LessPPH, @LessNTI, @TD, @TWCE, @TWPE, @TATW)"; 
     //cmd.Parameters.AddWithValue("@ID", Convert.ToInt32(txtID.Text)); 
     cmd.Parameters.AddWithValue("@First", DGVExcel.Rows[i].Cells[0].Value); 
     cmd.Parameters.AddWithValue("@Last", DGVExcel.Rows[i].Cells[1].Value); 
     cmd.Parameters.AddWithValue("@Gross", Convert.ToDouble(DGVExcel.Rows[i].Cells[2].Value)); 
     cmd.Parameters.AddWithValue("@LessTNT", 
      Convert.ToDouble(DGVExcel.Rows[i].Cells[3].Value)); 
     cmd.Parameters.AddWithValue("@TCI", Convert.ToDouble(DGVExcel.Rows[i].Cells[4].Value)); 
     cmd.Parameters.AddWithValue("@ADDTI", Convert.ToDouble(DGVExcel.Rows[i].Cells[5].Value)); 
     cmd.Parameters.AddWithValue("@GTI", Convert.ToDouble(DGVExcel.Rows[i].Cells[6].Value)); 
     cmd.Parameters.AddWithValue("@LessTE", Convert.ToDouble(DGVExcel.Rows[i].Cells[7].Value)); 
     cmd.Parameters.AddWithValue("@LessPPH", 
      Convert.ToDouble(DGVExcel.Rows[i].Cells[8].Value)); 
     cmd.Parameters.AddWithValue("@LessNTI", 
      Convert.ToDouble(DGVExcel.Rows[i].Cells[9].Value)); 
     cmd.Parameters.AddWithValue("@TD", Convert.ToDouble(DGVExcel.Rows[i].Cells[10].Value)); 
     cmd.Parameters.AddWithValue("@TWCE", Convert.ToDouble(DGVExcel.Rows[i].Cells[11].Value)); 
     cmd.Parameters.AddWithValue("@TWPE", Convert.ToDouble(DGVExcel.Rows[i].Cells[12].Value)); 
     cmd.Parameters.AddWithValue("@TATW", Convert.ToDouble(DGVExcel.Rows[i].Cells[13].Value)); 
     cmd.ExecuteNonQuery(); 
    } 
}