Question

我正在尝试允许我的用户在表单中注册，一旦用户点击“注册”按钮包含2个可以为NULL的外键，将存储数据的表，但是当我尝试提交一个新的注册表单，我得到错误列名称或提供的值的数量与表定义不匹配，我真的不知道是什么问题。我已经搜索了很多解决方案，但没有一个适用于这种情况。任何帮助表示赞赏！

以下是代码：

protected void signup_btn_Click(object sender, EventArgs e)
{
    string strcon = "Data Source=(LocalDB)\\MSSQLLocalDB; AttachDbFilename =C:\\Users\\user\\source\\repos\\Test\\Test\\App_Data\\database.mdf; Integrated Security = True";

    SqlConnection con = new SqlConnection(strcon);

    con.Open();

    String command = "INSERT INTO writer VALUES (@writer_Fn, @writer_Ln, @Age, @Username, @Password, @Email)";

    SqlCommand com = new SqlCommand(command, con);

    com.Parameters.AddWithValue("@writer_Fn", first_box.Text);
    com.Parameters.AddWithValue("@writer_Ln", last_box.Text);
    com.Parameters.AddWithValue("@Age", age_box.Text);
    com.Parameters.AddWithValue("@Username", user_box.Text);
    com.Parameters.AddWithValue("@Password", confirm_box.Text);
    com.Parameters.AddWithValue("@Email", email_box.Text);

    com.ExecuteNonQuery();
}

这是“writer”表的表定义：

CREATE TABLE [dbo].[writer] 
(
    [writerID]    INT          IDENTITY (1, 1) NOT NULL,
    [writer_Fn]   CHAR (15)    NOT NULL,
    [writer_Ln]   CHAR (15)    NOT NULL,
    [Age]         INT          NULL,
    [Username]    VARCHAR (25) NOT NULL,
    [Password]    VARCHAR (15) NOT NULL,
    [Email]       VARCHAR (25) NOT NULL,
    [tran_FID]    INT          NULL,
    [content_FID] INT          NULL,

    PRIMARY KEY CLUSTERED ([writerID] ASC),

    CONSTRAINT [FK_writer_content] 
        FOREIGN KEY ([content_FID]) REFERENCES [dbo].[content] ([ContentID]),
    CONSTRAINT [FK_writer_transaction] 
        FOREIGN KEY ([tran_FID]) REFERENCES [dbo].[transaction] ([tranID])
);

Answer 1

您没有在INSERT语句中提供列名。

它应该是：

INSERT 
INTO    writer (writer_Fn, writer_Ln, Age, Username, Password, Email)
VALUES (@writer_Fn, @writer_Ln, @Age, @Username, @Password, @Email)

提供的列名称或值与表定义不匹配

1 个答案: