从类到aspx.cs调用方法

Question

班级代码：

 using System.Data.SqlClient;

    namespace WebApplication5
    {
        public class Class1
        {
            public int ID;
            public string nem;
            public int salar;


     public void ReadIMP(int id )
            {

                SqlConnection conn = new SqlConnection("Data Source=.\\sqlexpress;Initial Catalog=emp;Integrated Security=True");
                string Query = "select * from employee where Id = '" + id + "' ";
                SqlCommand cmd = new SqlCommand(Query, conn);
                conn.Open();

                SqlDataReader reader = cmd.ExecuteReader();
                while (reader.Read())
                {
                    ID = (int)reader["Id"];
                    nem = (string)reader["name"];
                    salar = (int)reader["salary"];
                }
                reader.Close();
                conn.Close();

                }


            }

}

aspx.cs代码：

     protected void Read_IMP(object sender, EventArgs e)
            {

                try
                {
                    Class1 class1 = new Class1();

                    class1.ReadIMP(Convert.ToInt16(TextBox1.Text));

                }
                catch (Exception ex)
                {
                    LabelEX.Text = ex.Message;

                }


            }

aspx代码：

    <div>
             enter the id of employees :

            <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>  
            <br />
                        Id of employees is

                        <asp:Label ID="Label1" runat="server"></asp:Label>

             <br />
                        name of employees is

                        <asp:Label ID="Label2" runat="server"></asp:Label>

             <br />
                              salary of employee is :

                        <asp:Label ID="Label3" runat="server"></asp:Label>


                           <asp:Button ID="Button4" runat="server" Text="Search"   OnClick="Read_IMP" />

             <br />

            <asp:Label ID="LabelEX" runat="server" Text="Label"></asp:Label>

.................................................. ....................................我在类中使用方法从数据库中检索数据，并在所需的aspx.cs页面中调用该方法来填充以下属性：ID，nem，salar到Label1，Label2，Label3中我可以这样做吗

Answer 1

从代码中，您已经在字段中填充了数据，然后将这些数据直接填充到aspx控件中

Class1 class1 = new Class1();
class1.ReadIMP(Convert.ToInt16(TextBox1.Text));
Label1.Text = (string)class1.ID;
Label2.Text = class1.nem;
Label3.Text = (string)class1.salar;