如何将文本框数据添加到数据库？

Question

我正在做一个学校项目，我需要将文本输入（姓名和性别）放入数据库。这个数据库（名字和性别）然后必须显示在一个列表框中。我现在的代码放在下面，我怎样才能让它工作？提前致谢！

 private void Form1_Load(object sender, EventArgs e)
    {
        using (connection = new SqlConnection(connectionString))
        using (SqlDataAdapter adapter = new SqlDataAdapter("SELECT * FROM 
   Persoon", connection))
        {
            connection.Open();
            DataTable PersoonTable = new DataTable();
            adapter.Fill(PersoonTable);
            lb_gebruikers.DisplayMember = "Naam";
            lb_gebruikers.ValueMember = "Id";
            lb_gebruikers.DataSource = PersoonTable;
        }
    }
    private void button1_Click(object sender, EventArgs e)
    {
        string naam = tb_naam.Text;
        string geslacht = tb_geslacht.Text;



        Persoon nieuwpersoon = new Persoon(naam, geslacht);
        personen.Add(nieuwpersoon);

        foreach (var Persoon in personen)
        {
            lb_gebruikers.Items.Add("Naam: " + nieuwpersoon.Naam + 
  "Geslacht: " + nieuwpersoon.Geslacht);

        }

    }

Answer 1

据我了解，您只需在 button1.click 和 addToList 进程之间添加一个插入。

        private void btnSave_Click(object sender, EventArgs e)
        {
            try
            {
                SqlConnection con = new SqlConnection("Server =.;Database=People; Integrated Security = true");
                con.Open();
                SqlCommand cmd = new SqlCommand(); // you can define commandText and connection in SqlCommand(defineArea);
                cmd.Connection = con;              // like; cmd = newSqlCommand("Insert into...",con);
                string name = txtName.Text;
                string gender = txtGender.Text;
                cmd.CommandText = "Insert into Person(Name,Gender)values('" + name + "','" + gender + "')";
                cmd.ExecuteNonQuery();
                cmd.Dispose();
                con.Close();

                lstBxPerson.Items.Add(name + " - " + gender);
                MessageBox.Show("Save Success!");
            }
            catch (Exception ex)
            {
                MessageBox.Show("Exception : "+ex);
            }
        }

数据库名称：人

表名：人

所有零件图片：