Question

我厌倦了我的代码，我不知道我的代码有什么问题请帮我解决这个问题这段代码应该将数据插入数据库，这里我使用ms access

这是我的文件staff.cs

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;
using System.Data.OleDb;

namespace TestStaff
{
    public partial class Staff : Form
    {
        private OleDbConnection Kei = new OleDbConnection();
        public Staff()
        {
            Kei.ConnectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D://amel ioop//SalonDatabase.accdb;
            Persist Security info=False;";
            InitializeComponent();
        }

        private void groupBox1_Enter(object sender, EventArgs e)
        {

        }


        private void Staff_Load(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            new StaffClass().fefefe (Name.Text, DateofBirth.Text, Gender.Text, ICNumber.Text, Email.Text, Mobile.Text, Position.Text);
        }
    }
}

这是另一个文件staffclass.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data.OleDb;
using System.Windows.Forms;

namespace TestStaff
{

    class StaffClass
    {
        private OleDbConnection connection;
        private OleDbCommand _command;
        private OleDbDataReader _reader;
        private string _NAME, _DOB, _EM, _IC, _GE, _MO, _PO;


        public OleDbConnection Connection
        {
            get
            {
                return connection;
            }
        }
        public OleDbCommand Command
        {
            get
            {
                return _command;
            }
            set
            {
                _command = value;
            }
        }
        public OleDbDataReader Reader
        {
            get
            {
                return _reader;
            }
            set
            {
                _reader = value;
            }
        }
        public string NAME
        {
            get
            {
                return _NAME;
            }
            set
            {
                _NAME = value;
            }
        }
        public string IC
        {
            get
            {
                return _IC;
            }
            set
            {
                _IC = value;
            }
        }
        public string MO
        {
            get
            {
                return _MO;
            }
            set
            {
                _MO = value;
            }
        }
        public string GE
        {
            get
            {
                return _GE;
            }
            set
            {
                _GE = value;
            }
        }

        public string EM
        {
            get
            {
                return _EM;
            }
            set
            {
                _EM = value;
            }
        }

        public string PO
        {
            get
            {
                return _PO;
            }
            set
            {
                _PO = value;
            }
        }

        public string DOB
        {
            get
            {
                return _DOB;
            }
            set
            {
                _DOB = value;
            }
        }


         public StaffClass()
        {
            connection = new OleDbConnection();
            connection.ConnectionString = connection.ConnectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=‪D://amel ioop//SalonDatabase.accdb;
            Persist Security Info=False;";
            connection.Open();
        }

         public bool fefefe(string _NAME, string _DOB, string _IC, string _MO, string _GE, string _EM, string _PO)
         {
             try
             {
                 OleDbCommand command = new OleDbCommand();
                 command.Connection = connection;
                 command.CommandText = "insert into Staff (Name, DateofBirth, ICNumber, MobileNumber, Gender, EmailAddress, Position) values (@_NAME, @_DOB, @_IC, @_MO, @_GE, @EM, @_PO)";
                 command.Parameters.AddWithValue("@_NAME", NAME);
                 command.Parameters.AddWithValue("@_DOB", DOB);
                 command.Parameters.AddWithValue("@_IC", IC);
                 command.Parameters.AddWithValue("@_MO", MO);
                 command.Parameters.AddWithValue("@_GE", GE);
                 command.Parameters.AddWithValue("@_EM", EM);
                 command.Parameters.AddWithValue("@_PO", PO);
                 command.ExecuteNonQuery();
                 MessageBox.Show("Data Saved");
                 connection.Close();
             }
             catch (Exception ex)
             {
                 MessageBox.Show("Error" + ex);
             }
             return true;
         }



    }
}

Answer 1

我注意到的第一件事是你没有分配你的财产价值。您正在将_NAME传递给fefefefe，但我看不到您将属性名称分配给值_NAME。

快速修复将使用函数的参数而不是属性值。（例如）

command.Parameters.AddWithValue("@_NAME", _NAME);
command.Parameters.AddWithValue("@_DOB", _DOB);
command.Parameters.AddWithValue("@_IC", _IC);
command.Parameters.AddWithValue("@_MO", _MO);
command.Parameters.AddWithValue("@_GE", _GE);
command.Parameters.AddWithValue("@_EM", _EM);
command.Parameters.AddWithValue("@_PO", _PO);

另外，你有任何类型的例外吗？

c＃无法将数据插入数据库

1 个答案: