C＃を使用してデータベーステーブルにループを使用して複数のクエリを挿入するにはどうすればよいですか？

Question

どのように私は10にstudent_fee_record_2からstudent_fee_record_1など間の唯一のの違いは、fee_txtのための挿入はありきではありません（student_fee_record_10にstudent_fee_record_2から）ループにこれらのクエリを置くことができます。ループに挿入する必要がありますからstudent_fee_record_1私のコードは短くすることができますが、これらはコードの行が多すぎますので、ループを使ってこのコードを短くしてください。そして、私はのvarchar（）をデータベースのすべてのフィールドに使用しています。 ここに私のコードです。

private void btn_add_Click(object sender, EventArgs e) 
     { 
      string constring = "Data Source=Niazi;Initial Catalog=IIHS;Integrated Security=True"; 
      SqlConnection conDataBase = new SqlConnection(constring); 
      conDataBase.Open(); 
      string Query = "insert into student_fee_record_1 (student_id, student_name, student_f_name," + 
       "program, address, email_address, date, fee_submit)" + 
       "values('" + std_id_txt.Text + "','" + std_name_txt.Text + "','" + f_name_txt.Text + "'," + 
       "'" + program_txt.Text + "', '" + address_txt.Text + "', '" + email_txt.Text + "'," + 
       "'" + date_txt.Text + "', '" + fee_txt.Text + "');"+ 

       "insert into student_fee_record_2 (student_id, student_name, student_f_name," + 
       "program, address, email_address, date)"+ 
       "values('" + std_id_txt.Text + "', '" + std_name_txt.Text + "', '" + f_name_txt.Text + "', " + 
       "'" + program_txt.Text + "', '" + address_txt.Text + "', '" + email_txt.Text + "'," + 
       "'" + date_txt.Text + "')" + 
       "insert into student_fee_record_3 (student_id, student_name, student_f_name," + 
       "program, address, email_address, date)" + 
       "values('" + std_id_txt.Text + "', '" + std_name_txt.Text + "', '" + f_name_txt.Text + "', " + 
       "'" + program_txt.Text + "', '" + address_txt.Text + "', '" + email_txt.Text + "'," + 
       "'" + date_txt.Text + "')" + 
       "insert into student_fee_record_4 (student_id, student_name, student_f_name," + 
       "program, address, email_address, date)" + 
       "values('" + std_id_txt.Text + "', '" + std_name_txt.Text + "', '" + f_name_txt.Text + "', " + 
       "'" + program_txt.Text + "', '" + address_txt.Text + "', '" + email_txt.Text + "'," + 
       "'" + date_txt.Text + "')" + 
       "insert into student_fee_record_5 (student_id, student_name, student_f_name," + 
       "program, address, email_address, date)" + 
       "values('" + std_id_txt.Text + "', '" + std_name_txt.Text + "', '" + f_name_txt.Text + "', " + 
       "'" + program_txt.Text + "', '" + address_txt.Text + "', '" + email_txt.Text + "'," + 
       "'" + date_txt.Text + "')" + 
       "insert into student_fee_record_6 (student_id, student_name, student_f_name," + 
       "program, address, email_address, date)" + 
       "values('" + std_id_txt.Text + "', '" + std_name_txt.Text + "', '" + f_name_txt.Text + "', " + 
       "'" + program_txt.Text + "', '" + address_txt.Text + "', '" + email_txt.Text + "'," + 
       "'" + date_txt.Text + "')" + 
       "insert into student_fee_record_7 (student_id, student_name, student_f_name," + 
       "program, address, email_address, date)" + 
       "values('" + std_id_txt.Text + "', '" + std_name_txt.Text + "', '" + f_name_txt.Text + "', " + 
       "'" + program_txt.Text + "', '" + address_txt.Text + "', '" + email_txt.Text + "'," + 
       "'" + date_txt.Text + "')" + 
       "insert into student_fee_record_8 (student_id, student_name, student_f_name," + 
       "program, address, email_address, date)" + 
       "values('" + std_id_txt.Text + "', '" + std_name_txt.Text + "', '" + f_name_txt.Text + "', " + 
       "'" + program_txt.Text + "', '" + address_txt.Text + "', '" + email_txt.Text + "'," + 
       "'" + date_txt.Text + "')" + 
       "insert into student_fee_record_9 (student_id, student_name, student_f_name," + 
       "program, address, email_address, date)" + 
       "values('" + std_id_txt.Text + "', '" + std_name_txt.Text + "', '" + f_name_txt.Text + "', " + 
       "'" + program_txt.Text + "', '" + address_txt.Text + "', '" + email_txt.Text + "'," + 
       "'" + date_txt.Text + "')" + 
       "insert into student_fee_record_10 (student_id, student_name, student_f_name," + 
       "program, address, email_address, date)" + 
       "values('" + std_id_txt.Text + "', '" + std_name_txt.Text + "', '" + f_name_txt.Text + "', " + 
       "'" + program_txt.Text + "', '" + address_txt.Text + "', '" + email_txt.Text + "'," + 
       "'" + date_txt.Text + "')"; 

       //SqlConnection conDataBase = new SqlConnection(constring); 
       SqlCommand cmdDataBase = new SqlCommand(Query, conDataBase); 
       SqlDataReader myReader; 
       try 
       { 
        //conDataBase.Open(); 
        myReader = cmdDataBase.ExecuteReader(); 
        MessageBox.Show("Record added successfully."); 
        ClearAll(this); 
        load_table(); 
        while (myReader.Read()) 
        { 

        } 
       } 
       catch (Exception ex) 
       { 
        MessageBox.Show(ex.Message); 
       } 
     } 

Answer 1

簡単

 private void btn_add_Click(object sender, EventArgs e) 
     { 
      string constring = "Data Source=Niazi;Initial Catalog=IIHS;Integrated Security=True"; 
      SqlConnection conDataBase = new SqlConnection(constring); 
      conDataBase.Open(); 

      string Query = ""; 

      for (int recordNum = 1; recordNum <= 10; recordNum++) 
      { 
       if (recordNum == 1) 
       { 
        Query = string.Format(
         "insert into student_fee_record_{0} (student_id, student_name, student_f_name," + 
         "program, address, email_address, date, fee_submit)" + 
         "values('{1}','{2}','{3}','{4}','{5}','{6}','{7}','{8}')", 
         recordNum.ToString(), std_id_txt.Text, std_name_txt, f_name_txt.Text, program_txt.Text, address_txt.Text, date_txt.Text, email_txt.Text, fee_txt.Text); 
       } 
       else 
       { 
        Query = string.Format(
         "insert into student_fee_record_{0} (student_id, student_name, student_f_name," + 
         "program, address, email_address, date)" + 
         "values('{1}','{2}','{3}','{4}','{5}','{6}','{7}')", 
         recordNum.ToString(), std_id_txt.Text, std_name_txt, f_name_txt.Text, program_txt.Text, address_txt.Text, date_txt.Text, email_txt.Text); 
       } 

       //SqlConnection conDataBase = new SqlConnection(constring); 
       SqlCommand cmdDataBase = new SqlCommand(Query, conDataBase); 
       SqlDataReader myReader; 
       try 
       { 
        //conDataBase.Open(); 
        myReader = cmdDataBase.ExecuteReader(); 
        MessageBox.Show("Record added successfully."); 
        ClearAll(this); 
        load_table(); 
        while (myReader.Read()) 
        { 

        } 
       } 
       catch (Exception ex) 
       { 
        MessageBox.Show(ex.Message); 
       } 
      } 
     }