C# 无法向数据库插入多个值
我需要这方面的帮助:我正在尝试使用网页作为界面向数据库插入多个值。当我试图保存时,我得到了错误 “关键字“values”附近的语法不正确。” 下面是C#代码供您参考C# 无法向数据库插入多个值,c#,asp.net,linq,C#,Asp.net,Linq,我需要这方面的帮助:我正在尝试使用网页作为界面向数据库插入多个值。当我试图保存时,我得到了错误 “关键字“values”附近的语法不正确。” 下面是C#代码供您参考 using System; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.H
using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;
public partial class _Default : System.Web.UI.Page
{
SqlConnection con = new SqlConnection("Data Source=INHRPSM1D7C;Initial Catalog=Controller_Forecast;Integrated Security=True;");
protected void Page_Load(object sender, EventArgs e)
{
}
public void refress()
{
TextBox1.Text = "";
TextBox2.Text = "";
TextBox3.Text = "";
TextBox4.Text = "";
TextBox5.Text = "";
TextBox6.Text = "";
TextBox7.Text = "";
TextBox8.Text = "";
TextBox9.Text = "";
TextBox10.Text = "";
TextBox11.Text = "";
TextBox12.Text = "";
DropDownList1.Text = "";
DropDownList2.Text = "";
}
protected void btnSave_Click(object sender, EventArgs e)
{
SqlCommand cmd = new SqlCommand("insert into Controller_Forecast(C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13) values('" +
TextBox1.Text + "','" + TextBox2.Text + "','" + TextBox3.Text +
"','" + TextBox4.Text + "','" + TextBox5.Text + "','" + TextBox6.Text +
"','" + TextBox7.Text + "','" + TextBox8.Text + "','" + TextBox9.Text +
"','" + TextBox10.Text + "','" + TextBox11.Text + "','" + TextBox12.Text +
"','" + DropDownList1.Text + "','" + DropDownList2.Text + "','" +
DropDownList3.Text + "'),values('" + TextBox13.Text + "','" +
TextBox14.Text + "','" + TextBox15.Text + "','" +
TextBox16.Text + "','" + TextBox17.Text + "','" +
TextBox18.Text + "','" + TextBox19.Text + "','" +
TextBox20.Text + "','" + TextBox21.Text + "','" +
TextBox22.Text + "','" + TextBox23.Text + "','" +
TextBox24.Text + "','" + DropDownList4.Text + "','" +
DropDownList5.Text + "','" + DropDownList6.Text + "')",con);
cmd.CommandType = CommandType.Text;
try
{
con.Open();
cmd.ExecuteNonQuery();
Literal1.Text = "Data Updated Successfully!!!";
con.Close();
refress();
}
catch (Exception ex)
{
Literal1.Text = ex.Message;
}
}
protected void Button1_Click(object sender, EventArgs e)
{
refress();
Literal1.Text = "";
}
}
您不能像尝试使用一个函数那样执行两组值。你的工作是:
INSERT INTO Controller_Forecast(C1,C2...)
VALUES(...loads of values...)
VALUES(...Loads of more values...)
这是无效的。要插入2组数据,这看起来就像您正在尝试做的,您可以执行2个insert INTO语句或使用逗号拆分值列表,如下所示:
多个insert语句
用逗号分隔
然而,这似乎效率低下,最好将其写入存储过程并对值进行参数化,以避免sql注入。您有两个“值”。你能试试这个吗
“插入
控制器预测(C1、C2、C3、C4、C5、C6、C7、C8、C9、C10、C11、C12、C13)
值(''+
TextBox1.Text+“,”+TextBox2.Text+“,”+TextBox3.Text+
“,”“+TextBox4.Text+”,“+TextBox5.Text+”,“+TextBox6.Text”+
“,”“+TextBox7.Text+”,“+TextBox8.Text+”,“+TextBox9.Text”+
“,”“+TextBox10.Text+”,“+TextBox11.Text+”,“+TextBox12.Text”+
“,”+DropDownList1.Text+“,“+DropDownList2.Text+”,”+
DropDownList3.Text+“')”,con)
您正在使用串联创建的这个巨大的命令字符串中出现了一些错误,可能是缺少/额外的逗号或单引号。使用调试器并检查连接后此命令的外观。或者更好-根本不要使用连接,因为它会导致sql注入漏洞,而是使用参数化查询。我的系统中没有安装调试器,你能修改查询并粘贴它吗?你调用
值(…)
两次,这是无效的sql语法。哦,孩子,这一天将有一个字段。查询中有两次value()。还要确保VALUES()子句中的数据项数与开头指定的字段名数匹配。
INSERT INTO Controller_Forecast(C1,C2...)
VALUES(...your first set of values...)
INSERT INTO Controller_Forecast(C1,C2...)
VALUES(...your second set of values...)
INSERT INTO Controller_Forecast(C1,C2...)
VALUES(...your first set of values...), (...second set of values...)