我为此疯狂， 我正在尝试使用c＃
保存Access 2010 .accdb数据库中表的更改我有这个方法：
using (OleDbConnection conn = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + frmMain.dbPath + "; Persist Security Info=False;"))
{
conn.Open();
using (OleDbTransaction tx = conn.BeginTransaction())
{
using (OleDbCommand cmd = new OleDbCommand(
"UPDATE Ricette SET " +
"Ricette.ResinaUreicaTotale = @ResinaUreicaTotale, " +
"Ricette.ResinaUreicaParziale = @ResinaUreicaParziale, " +
"Ricette.ResinaMelaminicaTotale = @ResinaMelaminicaTotale, " +
"Ricette.ResinaMelaminicaParziale = @ResinaMelaminicaParziale, " +
"Ricette.AcquaTotale = @AcquaTotale, " +
"Ricette.AcquaParziale = @AcquaParziale, " +
"Ricette.FarinettaTotale = @FarinettaTotale, " +
"Ricette.FarinaCoccoTotale = @FarinaCoccoTotale, " +
"Ricette.ComponenteATotale = @ComponenteATotale, " +
"Ricette.TempoMix = @TempoMix " +
"WHERE Ricette.[Nome] = [@Nome];", conn))
{
cmd.CommandType = CommandType.Text;
cmd.Transaction = tx;
using (OleDbDataAdapter ad = new OleDbDataAdapter(cmd))
{
try
{
DataRow row = ds.Tables[0].Rows.Find(cmbIncollaggio.SelectedItem.ToString());
string[] ric = new string[1];
switch (cmbIncollaggio.SelectedItem.ToString())
{
case "IF20":
cmd.Parameters.Add("@Nome", OleDbType.VarChar, 100, "Nome").Value = "IF20";
cmd.Parameters.Add("@ResinaUreicaTotale", OleDbType.VarChar, 100, "ResinaUreicaTotale").Value = RUTEdit.Text;
frmMain.seriale.DataWrite("00WD", RUTEdit.Text, 2100);
ric = frmMain.seriale.DataRead("00RD", 2100, 1);
RUTLabel.Text = Convert.ToInt32(ric[0]).ToString();
cmd.Parameters.Add("@ResinaUreicaParziale", OleDbType.VarChar, 100, "ResinaUreicaParziale").Value = RUPEdit.Text;
frmMain.seriale.DataWrite("00WD", RUPEdit.Text, 2101);
ric = frmMain.seriale.DataRead("00RD", 2101, 1);
RUPLabel.Text = Convert.ToInt32(ric[0]).ToString();
cmd.Parameters.Add("@ResinaMelaminicaTotale", OleDbType.VarChar, 100, "ResinaMelaminicaTotale").Value = RMTEdit.Text;
frmMain.seriale.DataWrite("00WD", RMTEdit.Text, 2102);
ric = frmMain.seriale.DataRead("00RD", 2102, 1);
RMTLabel.Text = Convert.ToInt32(ric[0]).ToString();
cmd.Parameters.Add("@ResinaMelaminicaParziale", OleDbType.VarChar, 100, "ResinaMelaminicaParziale").Value = RMPEdit.Text;
frmMain.seriale.DataWrite("00WD", RMPEdit.Text, 2103);
ric = frmMain.seriale.DataRead("00RD", 2103, 1);
RMPLabel.Text = Convert.ToInt32(ric[0]).ToString();
cmd.Parameters.Add("@AcquaTotale", OleDbType.VarChar, 100, "AcquaTotale").Value = ATEdit.Text;
frmMain.seriale.DataWrite("00WD", ATEdit.Text, 2104);
ric = frmMain.seriale.DataRead("00RD", 2104, 1);
ATLabel.Text = Convert.ToInt32(ric[0]).ToString();
cmd.Parameters.Add("@AcquaParziale", OleDbType.VarChar, 100, "AcquaParziale").Value = APEdit.Text;
frmMain.seriale.DataWrite("00WD", APEdit.Text, 2105);
ric = frmMain.seriale.DataRead("00RD", 2105, 1);
APLabel.Text = Convert.ToInt32(ric[0]).ToString();
cmd.Parameters.Add("@FarinettaTotale", OleDbType.VarChar, 100, "FarinettaTotale").Value = FTEdit.Text;
frmMain.seriale.DataWrite("00WD", FTEdit.Text, 2106);
ric = frmMain.seriale.DataRead("00RD", 2106, 1);
FTLabel.Text = string.Format("{0,0}", Convert.ToInt32(ric[0]) / 10);
cmd.Parameters.Add("@FarinaCoccoTotale", OleDbType.VarChar, 100, "FarinaCoccoTotale").Value = FCTEdit.Text;
frmMain.seriale.DataWrite("00WD", FCTEdit.Text, 2107);
ric = frmMain.seriale.DataRead("00RD", 2107, 1);
FCTLabel.Text = string.Format("{0,0}", Convert.ToInt32(ric[0]) / 10);
cmd.Parameters.Add("@ComponenteATotale", OleDbType.VarChar, 100, "ComponenteATotale").Value = CATEdit.Text;
frmMain.seriale.DataWrite("00WD", CATEdit.Text, 2108);
ric = frmMain.seriale.DataRead("00RD", 2108, 1);
CATLabel.Text = string.Format("{0,0}", Convert.ToInt32(ric[0]) / 10);
cmd.Parameters.Add("@TempoMix", OleDbType.VarChar, 100, "TempoMix").Value = TMEdit.Text;
frmMain.seriale.DataWrite("00WD", TMEdit.Text, 2109);
ric = frmMain.seriale.DataRead("00RD", 2109, 1);
TMLabel.Text = Convert.ToInt32(ric[0]).ToString();
break;
}
ad.UpdateCommand = cmd;
ds.AcceptChanges();
ad.Update(ds);
tx.Commit();
}
catch (Exception ex)
{
tx.Rollback();
MessageBox.Show("Salvataggio non riuscito.\n" + ex.Message, "", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
}
}
}
conn.Close();
}
此代码不起作用...它在数据集中运行良好，但更改不会复制到原始数据库中... 你能找到任何错误吗？ 谢谢你的帮助......
答案 0 :(得分：0)
解决!!!
添加
cmd.ExecuteNonQuery();
并删除DataAdapter对象。