C#中查询值和目标字段的数量不一样错误？

Posted 2023-05-07

【中文标题】C#中查询值和目标字段的数量不一样错误？

【英文标题】：Number of query values and destination fields are not the same error in C#?

【发布时间】：2013-12-15 06:56:17

【问题描述】：

我正在尝试将我的 textedit 值存储到 MS Access 数据库中，但出现类似“查询值和目标字段的数量不一样”的错误。但是我的查询值和目标字段是相同的。我尝试在两种方法中插入两种方法都得到相同的错误。

我先尝试了这个方法

        int invoicenumber = Convert.ToInt32(TXE_Invoice_Number.Text);
        string terms = CBL_Terms.Text;
        DateTime date = CBL_Date.DateTime;
        string ourquote = TXE_OurQuote.Text;
        string salesperson = CBL_Sales_Person.Text;
        string customername = CBL_Customer_Nmae.Text;
        string oderno = CBL_Order_Number.Text;
        string invoiceaddress = TXE_Invoice_Address.Text;
        string deliveryaddress = TXE_Delivery_Address.Text;

        decimal wholediscper = Convert.ToDecimal(TXE_FlatDiscountP.Text);
        decimal wholediscamt = Convert.ToDecimal(TXE_FlatDiscountA.Text);
        decimal shippingpercenatge = Convert.ToDecimal(TXE_ShippingPercentage.Text);
        decimal shippingamount = Convert.ToDecimal(TXE_ShippingAmount.Text);
        decimal unitprice = Convert.ToDecimal(TXE_SubTotal.Text);
        decimal discount = Convert.ToDecimal(TXE_Discount.Text);
        decimal tax = Convert.ToDecimal(TXE_Tax.Text);
        decimal shiping = Convert.ToDecimal(TXE_Shipping.Text);
        decimal grandtotal = Convert.ToDecimal(TXE_GrandTotal.Text);


        OleDbCommand top = new OleDbCommand(
            "INSERT INTO NewInvoice_1 (" +
            "InvoiceNumber,Terms,[InvoiceDate],OurQuote," +
            "SalesPerson,CustomerName,OrderNumber," +
            "InvoiceAddress,DeliveryAddress," +
            "WholeDiscountP,WholeDiscountA,ShippingP,ShippingA" +
            "Price,Discount,Tax" +
            "Shipping,GrandTotal" +
            ") VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)", conn);

        top.Parameters.AddWithValue("?", invoicenumber);
        top.Parameters.AddWithValue("?", terms);
        top.Parameters.AddWithValue("?", date);
        top.Parameters.AddWithValue("?", ourquote);
        top.Parameters.AddWithValue("?", salesperson);
        top.Parameters.AddWithValue("?", customername);
        top.Parameters.AddWithValue("?", oderno);
        top.Parameters.AddWithValue("?", invoiceaddress);
        top.Parameters.AddWithValue("?", deliveryaddress);

        top.Parameters.AddWithValue("?", wholediscper);
        top.Parameters.AddWithValue("?", wholediscamt);
        top.Parameters.AddWithValue("?", shippingpercenatge);
        top.Parameters.AddWithValue("?", shippingamount);
        top.Parameters.AddWithValue("?", unitprice);
        top.Parameters.AddWithValue("?", discount);
        top.Parameters.AddWithValue("?", tax);
        top.Parameters.AddWithValue("?", shiping);
        top.Parameters.AddWithValue("?", grandtotal);

        top.ExecuteNonQuery();

第二种方法

        int invoicenumber = Convert.ToInt32(TXE_Invoice_Number.Text);
        string terms = CBL_Terms.Text;
        DateTime date = CBL_Date.DateTime;
        string ourquote = TXE_OurQuote.Text;
        string salesperson = CBL_Sales_Person.Text;
        string customername = CBL_Customer_Nmae.Text;
        string oderno = CBL_Order_Number.Text;
        string invoiceaddress = TXE_Invoice_Address.Text;
        string deliveryaddress = TXE_Delivery_Address.Text;

        decimal wholediscper = Convert.ToDecimal(TXE_FlatDiscountP.Text);
        decimal wholediscamt = Convert.ToDecimal(TXE_FlatDiscountA.Text);
        decimal shippingpercenatge = Convert.ToDecimal(TXE_ShippingPercentage.Text);
        decimal shippingamount = Convert.ToDecimal(TXE_ShippingAmount.Text);
        decimal unitprice = Convert.ToDecimal(TXE_SubTotal.Text);
        decimal discount = Convert.ToDecimal(TXE_Discount.Text);
        decimal tax = Convert.ToDecimal(TXE_Tax.Text);
        decimal shiping = Convert.ToDecimal(TXE_Shipping.Text);
        decimal grandtotal = Convert.ToDecimal(TXE_GrandTotal.Text);

        OleDbCommand top = new OleDbCommand("INSERT INTO test_top(InvoiceNumber,Terms,[InvoiceDate],OurQuote,SalesPerson,CustomerName,OrderNumber,InvoiceAddress,DeliveryAddress,WholeDiscountP,WholeDiscountA,ShippingP,ShippingA,Price,Discount,Tax,Shipping,GrandTotal) VALUES (" + invoicenumber + ",'" + terms + "','" + date + "','" + ourquote + "','" + salesperson + "','" + customername + "','" + oderno + "','" + invoiceaddress + "','" + deliveryaddress + "',"+ wholediscper +","+ wholediscamt +","+ shippingpercenatge +","+ shippingamount +"," + unitprice + "," + tax + "," + grandtotal + ")", conn);

在这两种方法中得到相同的错误？我的代码有什么问题？帮帮我

【参考方案1】：

您在“ShippingA”之后缺少逗号

"WholeDiscountP,WholeDiscountA,ShippingP,ShippingA". 

因此，尽管您的列名正确，但列数却减少了 1。

【讨论】：

非常感谢它现在工作正常。第二种方法的错误是什么？

第二个查询中缺少折扣变量

另外，在查询中建议使用第一种涉及参数的方法。