我在將十進制值插入我的 Access 數據庫版本 (2007 - 2010) 時遇到問題。假設我的文本框中有以下值：txtTotalAmount.Text = 3,5txtSalesTax.Text = 3,6txtTotalToPay.Text = 3,7但是，數據庫值顯示：TotalAmount as 35SalesTax as 36TotalToPay as 37我的數據庫設置如圖所示。這是我的代碼：private void button1_Click(object sender, EventArgs e){try    {        string connstring = ConfigurationManager.ConnectionStrings["Db"].ConnectionString;        using (OleDbConnection conn = new OleDbConnection(connstring))        {            conn.Open();            using (OleDbCommand cmd = new OleDbCommand("INSERT INTO [OrderItem](TotalAmount, SalesTax, TotalToPay) VALUES(@TotalAmount, @SalesTax, @TotalToPay)", conn))            {                cmd.Parameters.AddWithValue("@TotalAmount", Convert.ToDecimal(txtTotalAmount.Text));                cmd.Parameters.AddWithValue("@SalesTax", Convert.ToDecimal(txtSalesTax.Text));                cmd.Parameters.AddWithValue("@TotalToPay", Convert.ToDecimal(txtTotalToPay.Text));                cmd.ExecuteNonQuery();            }        }    }    catch (Exception ex)    {        MessageBox.Show(ex.Message);    }}我什至試過這樣；cmd.Parameters.AddWithValue("@TotalToPay", decimal.Parse(txtToPay.Text));和cmd.Parameters.AddWithValue("@SalesTax", OleDbType.Decimal).Value = Convert.ToDecimal(txtTest.Text);但是遇到同樣的問題。請幫忙。