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C#: WEBフォーム画面でSQLにデータをINSERTする

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SAMPLE

下記のWEBフォームを作成し、名前と誕生日を入力してボタンを押下するとSQLserver上のテーブルにデータをINSERTする。
image.png

SQLserver

CREATE TABLE [test_data]
	( id INT IDENTITY(1,1)
	, name NVARCHAR(200)
	, birth DATE
	, PRIMARY KEY (id))

ASP.NET

<div>
    名前を入力してください
    <asp:TextBox ID="TextBoxName" runat="server"></asp:TextBox>
    <br />
    <br />
    誕生日を入力してください
    <asp:TextBox ID="TextBoxBirth" runat="server"></asp:TextBox>
    <br />
    <br />
    <asp:Button ID="ButtonInsert" runat="server" OnClick="ButtonInsert_Click" Text="Insert" />
</div>

C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;

namespace WebApplication1
{
    public partial class WebForm1 : System.Web.UI.Page
    {

        protected void ButtonInsert_Click(object sender, EventArgs e)
        {
            var query = String.Format("INSERT INTO [test_data] ( name, birth ) VALUES ( '{0}','{1}' )", TextBoxName.Text, TextBoxBirth.Text );


            using (SqlConnection con = new SqlConnection("Data Source=ServerName; Initial Catalog=DatabaseName; uid=UserName; pwd=Password"))
            {
                try
                {
                    // データベースの接続
                    con.Open();

                    using (var transaction = con.BeginTransaction())
                    using (var command = new SqlCommand() { Connection = con, Transaction = transaction })
                    {
                        try
                        {
                            // コマンドのセット
                            command.CommandText = query;
                            // コマンドの実行
                            command.ExecuteNonQuery();
                            // コミット
                            transaction.Commit();
                        }
                        catch
                        {
                            // ロールバック
                            transaction.Rollback();
                            throw;
                        }
                    }
                }
                catch (Exception exception)
                {
                    Console.WriteLine(exception.Message);
                    throw;
                }
                finally
                {
                    // データベースの接続終了
                    con.Close();
                }
            }
        }
    }
}

EXAMPLE

image.png

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