对不起,问这个问题我知道还有很多其他问题,并试图使用提供的解决方案,但我无法让我的代码工作。感谢您的期待!如在属性所示连接与视觉工作室中的localdb不兼容
连接字符串:
数据 源=(的LocalDB)\ V11.0; AttachDbFilename =“C:\用户\雅各布\文档\ Visual Studio中 \项目\ WindowsFormsApplication2 \ WindowsFormsApplication2 \ ChatDB.mdf“;在app.config中集成 安全=真
连接字符串:
数据 源=(的LocalDB)\ 11.0; AttachDbFilename = | DataDirectory目录| \ ChatDB.mdf;集成 安全=真
Error: An unhandled exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll
Additional information: Incorrect syntax near the keyword 'User'.
代码:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
//NC-1 More namespaces.
using System.Data.SqlClient;
using System.Configuration;
namespace WindowsFormsApplication2
{
public partial class SignUp : Form
{
string connstr = ConfigurationManager.ConnectionStrings["WindowsFormsApplication2.Properties.Settings.ChatDBConnectionString"].ToString();
public SignUp()
{
InitializeComponent();
}
private void label1_Click(object sender, EventArgs e)
{
}
private void SubmitBtn_Click(object sender, EventArgs e)
{
string Name = NameText.Text;
string Pwd = PwdText.Text;
//make sure they have entered text
if (Name.Length > 0 && Pwd.Length > 0)
{
SqlConnection conn = new SqlConnection(connstr);
//NC-10 try-catch-finally
try
{
//NC-11 Open the connection.
conn.Open();
SqlCommand insert = new SqlCommand();
insert.Connection = conn;
insert.CommandText = "INSERT INTO [User] (Name,Password) VALUES ('" + Name + "','" + Pwd + "')";
insert.ExecuteNonQuery();
MessageBox.Show("Congrats!!!");
}
catch
{
//NC-14 A simple catch.
MessageBox.Show("User was not returned. Account could not be created.");
}
finally
{
//NC-15 Close the connection.
conn.Close();
}
}
//if no text make them enter
else
{
MessageBox.Show("Please enter Text in both fields.");
}
}
}
}
再次感谢你寻找。
检查你的SQL查询。 –
如果你在保留关键字“User”的周围没有方括号,我会期待这个错误。你的查询看起来对我有效。仔细检查异常和堆栈跟踪 - 确保它指向上面发布的代码(而不是其他查询)。 –
格兰特温尼很不幸,这是解决方案中唯一的查询,我刚开始使用visual studio和c#。 – tnyN