Question

为什么我不能在数据库中存储值？我的代码是正确的。当我访问数据库时，没有显示任何值。但是当我执行时，它的实现是正确的。告诉我该怎么做才能使它正确。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;
using System.Text.RegularExpressions;
using System.Windows.Input;
using System.Configuration;

namespace ODesk
{
    public partial class Form8registration : Form
    {

        SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["cn"].ConnectionString);

        public Form8registration()
        {
            InitializeComponent();
        }

        private void linkLabel1_login_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
        {
            Form1 fm1 = new Form1();
            fm1.Show();
            this.Hide();

        }

        private void Form8registration_Load(object sender, EventArgs e)
        {
            conn.Open();                

        }

        private void button2_reset_Click(object sender, EventArgs e)
        {
            Reset();
        }

        private void Reset()
        {
            textBox1_add.Text = "";
            textBox3_phoneno.Text = "";
            textBox4_emailid.Text = "";
            textBox5_desgination.Text = "";
            textBox6_name.Text = "";
            textBox7_empid.Text = "";
            comboBox1_shifttime.SelectedText  = "";
        }

        private void button3_cancel_Click(object sender, EventArgs e)
        {
            Close();
        }

        private void button1_submit_Click(object sender, EventArgs e)
        {
            if (conn.State == ConnectionState.Closed)
            {
                conn.Open();
            }              

                    SqlCommand cmdd = new SqlCommand("registrtn", conn);

                    cmdd.CommandType = CommandType.StoredProcedure;
                    cmdd.Connection = conn;

                    cmdd.Parameters.Add("@empid",SqlDbType.VarChar,50).Value = textBox7_empid.Text;
                    cmdd.Parameters.Add("@name", SqlDbType.VarChar, 50).Value = textBox6_name.Text;
                    cmdd.Parameters.Add("@desgination", SqlDbType.VarChar, 50).Value = textBox5_desgination.Text;
                    cmdd.Parameters.Add("@emailid", SqlDbType.VarChar, 50).Value = textBox4_emailid.Text;
                    cmdd.Parameters.Add("@phone", SqlDbType.VarChar, 50).Value = textBox3_phoneno.Text;
                    cmdd.Parameters.Add("@skype", SqlDbType.VarChar, 50).Value = textBox1_skpid.Text;
                    cmdd.Parameters.Add("@address", SqlDbType.VarChar, 50).Value = textBox1_add.Text;
                    cmdd.Parameters.Add("@shifttime", SqlDbType.VarChar, 50).Value = comboBox1_shifttime.SelectedText;
                    cmdd.Parameters.Add("@panel", SqlDbType.VarChar, 50).Value = radioButton1_employe.Checked.ToString();


                    cmdd.ExecuteNonQuery();
                    cmdd.Dispose();
                    conn.Close();
                    Reset();
        }
    }
}

Answer 1

就我们所知，您还没有正确连接button1_submit_Click事件！

我建议您使用一些简单的测试数据执行button1_submit_Click中的代码，看看您的数据库/权限是否存在问题....（缺少存储过程，参数不正确）..或者是否存在您的用户界面存在问题

只需在没有来自用户界面的任何互动的情况下运行它，这应该可以帮助解决任何问题。

还尝试在Management Studio中运行存储过程，看看会发生什么。

您是否考虑过using而不是您正在做的事情。

using(var conn = new SqlConnection(connString))
{
   SqlCommand cmdd = new SqlCommand("registrtn", conn);
   cmdd.CommandType = CommandType.StoredProcedure;
   cmdd.Parameters.Add("@empid",SqlDbType.VarChar,50).Value = textBox7_empid.Text;
   cmdd.Parameters.Add("@name", SqlDbType.VarChar, 50).Value = textBox6_name.Text;
   cmdd.Parameters.Add("@desgination", SqlDbType.VarChar, 50).Value = textBox5_desgination.Text;
   cmdd.Parameters.Add("@emailid", SqlDbType.VarChar, 50).Value = textBox4_emailid.Text;
   cmdd.Parameters.Add("@phone", SqlDbType.VarChar, 50).Value = textBox3_phoneno.Text;
   cmdd.Parameters.Add("@skype", SqlDbType.VarChar, 50).Value = textBox1_skpid.Text;
   cmdd.Parameters.Add("@address", SqlDbType.VarChar, 50).Value = textBox1_add.Text;
   cmdd.Parameters.Add("@shifttime", SqlDbType.VarChar, 50).Value = comboBox1_shifttime.SelectedText;
   cmdd.Parameters.Add("@panel", SqlDbType.VarChar, 50).Value = radioButton1_employe.Checked.ToString();

   cmdd.ExecuteNonQuery();
}

当我的代码正确时，为什么我不能在数据库中存储值？

1 个答案: