C# 使用数据集问题更新数据库表

我试图用数据集更新我的数据库表。我有一个本地excel文件，可以编辑并导入数据集。然后我想使用这个数据集和更新的数据来更新我的数据库表。这是我的代码：

public void UpdateDatabase(DataSet data, string tableName)
{
    string connectionString = ConfigurationManager.ConnectionStrings["TestDbOnBrie"].ConnectionString;
    using (SqlConnection connection = new SqlConnection(connectionString))
    {
        try
        {
            connection.Open();
            using (SqlDataAdapter adapter = new SqlDataAdapter("SELECT * FROM dbo.TransportSchedule_Customer;", connection))
            {
                SqlCommand selectCmd = new SqlCommand("SELECT * FROM dbo.TransportSchedule_Customer", connection);
                adapter.SelectCommand = selectCmd;
                SqlCommand updateCmd = new SqlCommand("UPDATE dbo.TransportSchedule_Customer SET Alias=@Alias, DeliveryDays1=@DeliveryDays1, DeliveryHours1=@DeliveryHours1, DeliveryType1=@DeliveryType1, DeliveryDays2=@DeliveryDays2, DeliveryHours2=@DeliveryHours2, DeliveryType2=@DeliveryType2, DeliveryDays3=@DeliveryDays3, DeliveryHours3=@DeliveryHours3, DeliveryType3=@DeliveryType3,  DistanceToDealer=@DistanceToDealer WHERE AdrID=@AdrID AND CustID=@CustID", connection);
                SqlCommand insertCmd = new SqlCommand("INSERT INTO dbo.TransportSchedule_Customer (CustID, Alias, AdrID, DeliveryDays1, DeliveryHours1, DeliveryType1, DeliveryDays2, DeliveryHours2, DeliveryType2, DeliveryDays3, DeliveryHours3, DeliveryType3, DistanceToDealer)" +
                    "VALUES (@CustID, @Alias, @AdrID, @DeliveryDays1, @DeliveryHours1, @DeliveryType1, @DeliveryDays2, @DeliveryHours2, @DeliveryType2, @DeliveryDays3, @DeliveryHours3, @DeliveryType3, @DistanceToDealer)", connection);


                //insertCmd.Parameters.Add("@CustID", SqlDbType.VarChar, 50, "CustID");
                //insertCmd.Parameters.Add("@AdrID", SqlDbType.Int, 50, "AdrID");
                //insertCmd.Parameters.Add("@Alias", SqlDbType.VarChar, 50, "Alias");

                //insertCmd.Parameters.Add("@DeliveryDays1", SqlDbType.VarChar, 50, "DeliveryDays1");
                //insertCmd.Parameters.Add("@DeliveryHours1", SqlDbType.VarChar, 50, "DeliveryHours1");
                //insertCmd.Parameters.Add("@DeliveryType1", SqlDbType.VarChar, 50, "DeliveryType1");

                //insertCmd.Parameters.Add("@DeliveryDays2", SqlDbType.VarChar, 50, "DeliveryDays2");
                //insertCmd.Parameters.Add("@DeliveryHours2", SqlDbType.VarChar, 50, "DeliveryHours2");
                //insertCmd.Parameters.Add("@DeliveryType2", SqlDbType.VarChar, 50, "DeliveryType2");

                //insertCmd.Parameters.Add("@DeliveryDays3", SqlDbType.VarChar, 50, "DeliveryDays3");
                //insertCmd.Parameters.Add("@DeliveryHours3", SqlDbType.VarChar, 50, "DeliveryHours3");
                //insertCmd.Parameters.Add("@DeliveryType3", SqlDbType.VarChar, 50, "DeliveryType3");

                //insertCmd.Parameters.Add("@DistanceToDealer", SqlDbType.VarChar, 50, "DistanceToDealer");
                //adapter.InsertCommand = insertCmd;


                updateCmd.Parameters.Add("@CustID", SqlDbType.VarChar, 50, "CustID");
                updateCmd.Parameters.Add("@AdrID", SqlDbType.Int, 50, "AdrID");
                updateCmd.Parameters.Add("@Alias", SqlDbType.VarChar, 50, "Alias");

                updateCmd.Parameters.Add("@DeliveryDays1", SqlDbType.VarChar, 50, "DeliveryDays1");
                updateCmd.Parameters.Add("@DeliveryHours1", SqlDbType.VarChar, 50, "DeliveryHours1");
                updateCmd.Parameters.Add("@DeliveryType1", SqlDbType.VarChar, 50, "DeliveryType1");

                updateCmd.Parameters.Add("@DeliveryDays2", SqlDbType.VarChar, 50, "DeliveryDays2");
                updateCmd.Parameters.Add("@DeliveryHours2", SqlDbType.VarChar, 50, "DeliveryHours2");
                updateCmd.Parameters.Add("@DeliveryType2", SqlDbType.VarChar, 50, "DeliveryType2");

                updateCmd.Parameters.Add("@DeliveryDays3", SqlDbType.VarChar, 50, "DeliveryDays3");
                updateCmd.Parameters.Add("@DeliveryHours3", SqlDbType.VarChar, 50, "DeliveryHours3");
                updateCmd.Parameters.Add("@DeliveryType3", SqlDbType.VarChar, 50, "DeliveryType3");

                updateCmd.Parameters.Add("@DistanceToDealer", SqlDbType.VarChar, 50, "DistanceToDealer");
                adapter.UpdateCommand = updateCmd;


                adapter.Update(data, "1");
            }
        }
        catch (Exception exception)
        {
            Console.WriteLine("ERROR in UpdateDatabase() method. Error Message : " + exception.Message);
        }
        finally
        {
            if (connection.State == System.Data.ConnectionState.Open)
            {
                connection.Close();
            }
        }
    }
}

我的问题是，当我只使用update命令时，会出现以下错误：

通过新行传递数据行集合时，更新需要有效的InsertCommand。

当我同时使用update命令和Insert命令时，会出现以下错误：

违反主键约束“PK\u运输计划\u客户”。无法在对象“dbo.TransportSchedule\u Customer”中插入重复密钥。

我认为它认为数据集表行是新行，必须插入，但实际上不是。这些行存在于数据库中，并且只更新了其中的一些行

---

有人知道该怎么做吗？

我自己知道怎么做了。下面是我的方法的结果。这是完美的。它仅更新文件数据集中存在且具有不同数据的行以及数据库中的数据集

我的方法：

 public void UpdateDatabase(DataSet data, string custID)
        {
            DataTable fromdatabase = new DataTable();
            DataTable fromFile = data.Tables[0];

            string connectionString = ConfigurationManager.ConnectionStrings["TestDbOnBrie"].ConnectionString;
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                try
                {
                    connection.Open();
                    string sqlCmd = "SELECT * FROM dbo.TransportSchedule_Customer WHERE CustID = '" + custID + "';";
                    SqlCommand command = new SqlCommand(sqlCmd, connection);
                    using (SqlCommand updateCmd = new SqlCommand("UPDATE dbo.TransportSchedule_Customer SET DeliveryDays1=@DeliveryDays1, DeliveryHours1=@DeliveryHours1, DeliveryType1=@DeliveryType1, DeliveryDays2=@DeliveryDays2, DeliveryHours2=@DeliveryHours2, DeliveryType2=@DeliveryType2, DeliveryDays3=@DeliveryDays3, DeliveryHours3=@DeliveryHours3, DeliveryType3=@DeliveryType3,  DistanceToDealer=@DistanceToDealer WHERE Alias=@Alias AND CustID=@CustID", connection))
                    {
                        using (SqlDataAdapter adapter = new SqlDataAdapter(command))
                        {
                            adapter.UpdateCommand = updateCmd;
                            adapter.Fill(fromdatabase);
                            updateCmd.Parameters.Add("@CustID", SqlDbType.VarChar, 50, "CustID");
                            updateCmd.Parameters.Add("@Alias", SqlDbType.VarChar, 50, "Alias");

                            updateCmd.Parameters.Add("@DeliveryDays1", SqlDbType.VarChar, 50, "DeliveryDays1");
                            updateCmd.Parameters.Add("@DeliveryHours1", SqlDbType.VarChar, 50, "DeliveryHours1");
                            updateCmd.Parameters.Add("@DeliveryType1", SqlDbType.VarChar, 50, "DeliveryType1");

                            updateCmd.Parameters.Add("@DeliveryDays2", SqlDbType.VarChar, 50, "DeliveryDays2");
                            updateCmd.Parameters.Add("@DeliveryHours2", SqlDbType.VarChar, 50, "DeliveryHours2");
                            updateCmd.Parameters.Add("@DeliveryType2", SqlDbType.VarChar, 50, "DeliveryType2");

                            updateCmd.Parameters.Add("@DeliveryDays3", SqlDbType.VarChar, 50, "DeliveryDays3");
                            updateCmd.Parameters.Add("@DeliveryHours3", SqlDbType.VarChar, 50, "DeliveryHours3");
                            updateCmd.Parameters.Add("@DeliveryType3", SqlDbType.VarChar, 50, "DeliveryType3");

                            updateCmd.Parameters.Add("@DistanceToDealer", SqlDbType.VarChar, 50, "DistanceToDealer");

                            for (int i = 0; i < fromdatabase.Rows.Count; i++)
                            {
                                int Resultcompare = 0;
                                Resultcompare += string.Compare(fromdatabase.Rows[i]["DeliveryDays1"].ToString(), fromFile.Rows[i]["DeliveryDays1"].ToString());
                                Resultcompare += string.Compare(fromdatabase.Rows[i]["DeliveryHours1"].ToString(), fromFile.Rows[i]["DeliveryHours1"].ToString());
                                Resultcompare += string.Compare(fromdatabase.Rows[i]["DeliveryType1"].ToString(), fromFile.Rows[i]["DeliveryType1"].ToString());

                                Resultcompare += string.Compare(fromdatabase.Rows[i]["DeliveryDays2"].ToString(), fromFile.Rows[i]["DeliveryDays2"].ToString());
                                Resultcompare += string.Compare(fromdatabase.Rows[i]["DeliveryHours2"].ToString(), fromFile.Rows[i]["DeliveryHours2"].ToString());
                                Resultcompare += string.Compare(fromdatabase.Rows[i]["DeliveryType2"].ToString(), fromFile.Rows[i]["DeliveryType2"].ToString());

                                Resultcompare += string.Compare(fromdatabase.Rows[i]["DeliveryDays3"].ToString(), fromFile.Rows[i]["DeliveryDays3"].ToString());
                                Resultcompare += string.Compare(fromdatabase.Rows[i]["DeliveryHours3"].ToString(), fromFile.Rows[i]["DeliveryHours3"].ToString());
                                Resultcompare += string.Compare(fromdatabase.Rows[i]["DeliveryType3"].ToString(), fromFile.Rows[i]["DeliveryType3"].ToString());


                                Resultcompare += string.Compare(fromdatabase.Rows[i]["DistanceToDealer"].ToString(), fromFile.Rows[i]["DistanceToDealer"].ToString());
                                if (Resultcompare == 0)
                                {

                                    //do nothing
                                }
                                else
                                {

                                    fromdatabase.Rows[i]["DeliveryDays1"] = fromFile.Rows[i]["DeliveryDays1"];
                                    fromdatabase.Rows[i]["DeliveryHours1"] = fromFile.Rows[i]["DeliveryHours1"];
                                    fromdatabase.Rows[i]["DeliveryType1"] = fromFile.Rows[i]["DeliveryType1"];

                                    fromdatabase.Rows[i]["DeliveryDays2"] = fromFile.Rows[i]["DeliveryDays2"];
                                    fromdatabase.Rows[i]["DeliveryHours2"] = fromFile.Rows[i]["DeliveryHours2"];
                                    fromdatabase.Rows[i]["DeliveryType2"] = fromFile.Rows[i]["DeliveryType2"];

                                    fromdatabase.Rows[i]["DeliveryDays3"] = fromFile.Rows[i]["DeliveryDays3"];
                                    fromdatabase.Rows[i]["DeliveryHours3"] = fromFile.Rows[i]["DeliveryHours3"];
                                    fromdatabase.Rows[i]["DeliveryType3"] = fromFile.Rows[i]["DeliveryType3"];

                                    fromdatabase.Rows[i]["DistanceToDealer"] = fromFile.Rows[i]["DistanceToDealer"];
                                    adapter.Update(fromdatabase);
                                }

                            }

                        }
                    }
                }
                catch (Exception exception)
                {
                    Console.WriteLine("ERROR in UpdateDatabase() method. Error Message : " + exception.Message);
                }
                finally
                {
                    if (connection.State == System.Data.ConnectionState.Open)
                    {
                        connection.Close();
                    }
                }
            }
        }

public void UpdateDatabase（数据集数据，字符串custID）
{
DataTable fromdatabase=新DataTable（）；
DataTable fromFile=data.Tables[0]；
string connectionString=ConfigurationManager.connectionString[“TestDbOnBrie”]。connectionString；
使用（SqlConnection连接=新的SqlConnection（connectionString））
{
尝试
{
connection.Open（）；
string sqlCmd=“SELECT*FROM dbo.TransportSchedule_Customer，其中CustID='”+CustID+“；”；
SqlCommand=newsqlcommand（sqlCmd，connection）；
使用（SqlCommand updateCmd=newsqlcommand("更新dbo.TransportSchedule\u客户设置交货日期1=@DeliveryDays1，DeliveryHours1=@DeliveryHours1，DeliveryType1=@DeliveryType1，DeliveryDays2=@DeliveryDays2，DeliveryHours2=@DeliveryHours2=@DeliveryType2，DeliveryDays3=@DeliveryHours3，DeliveryType3=@DeliveryType3，DistanceToDealer=@DistanceToDealer，其中别名=@Alias和CustID=@CustID”，连接）
{
使用（SqlDataAdapter=newsqldataadapter（命令））
{
adapter.UpdateCommand=updateCmd；
adapter.Fill（来自数据库）；
Add（“@CustID”，SqlDbType.VarChar，50，“CustID”）；
Add（“@Alias”，SqlDbType.VarChar，50，“Alias”）；
Add（“@DeliveryDays1”，SqlDbType.VarChar，50，“DeliveryDays1”）；
Add（“@DeliveryHours1”，SqlDbType.VarChar，50，“DeliveryHours1”）；
Add（“@DeliveryType1”，SqlDbType.VarChar，50，“DeliveryType1”）；
Add（“@DeliveryDays2”，SqlDbType.VarChar，50，“DeliveryDays2”）；
Add（“@DeliveryHours2”，SqlDbType.VarChar，50，“DeliveryHours2”）；
Add（“@DeliveryType2”，SqlDbType.VarChar，50，“DeliveryType2”）；
Add（“@DeliveryDays3”，SqlDbType.VarChar，50，“DeliveryDays3”）；
Add（“@DeliveryHours3”，SqlDbType.VarChar，50，“DeliveryHours3”）；
Add（“@DeliveryType3”，SqlDbType.VarChar，50，“DeliveryType3”）；
Add（“@DistanceToDealer”，SqlDbType.VarChar，50，“DistanceToDealer”）；
for（int i=0；i