Question

我是c＃的初学者，我正在尝试地狱，但我找不到它的错误。我使用过[user]因为user是一个关键字而没有[]。

就无法使用

    public partial class NewUser : Form
{
    SqlConnection con;
    string constr = "Data Source=CHANDAN;Initial Catalog=Airline;Integrated Security=True;";
    public NewUser()
    {
        con = new SqlConnection(constr);
        InitializeComponent();
    }
    private void buttonRegister_Click(object sender, EventArgs e)
    {
        try
        {
            con.Open(); 
            SqlCommand cmd = new SqlCommand("Insert into [User] (Email,password,FirstName,LastName,Age,Gender) values(@Email,@password,@FirstName,@LastName,@Age,@Gender", con);
            cmd.Parameters.Add("Email", SqlDbType.VarChar);
            cmd.Parameters["Email"].Value = this.TextBoxEmail.Text;
            cmd.Parameters.Add("password", SqlDbType.VarChar);
            cmd.Parameters["password"].Value = (this.TextBoxPassword.Text);
            cmd.Parameters.Add("FirstName", SqlDbType.VarChar);
            cmd.Parameters["FirstName"].Value = (this.TextBoxFirstName.Text);
            cmd.Parameters.Add("LastName", SqlDbType.VarChar);
            cmd.Parameters["LastName"].Value = (this.TextBoxLastName.Text);
            cmd.Parameters.Add("Age", SqlDbType.Int);
            cmd.Parameters["Age"].Value = Convert.ToInt32(this.TextBoxAge.Text);
            cmd.Parameters.Add("Gender", SqlDbType.VarChar);
            cmd.Parameters["Gender"].Value = (this.ComboBoxGender.Text);
            cmd.ExecuteNonQuery();
            MessageBox.Show("Record Inserted Sucessfully");
            con.Close();
        }
        catch (Exception e1)
        {
            MessageBox.Show("Exception Occured" + "\n" + e1.ToString());
        }
    }

Answer 1

最后缺少右括号

Insert into [User] (Email,password,FirstName,LastName,Age,Gender) 
values(@Email,@password,@FirstName,@LastName,@Age,@Gender) --here

注意：最好不要将 reserved keywords （USER）用作标识符

@Gender C＃.NET附近的语法不正确

1 个答案: