using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Configuration;

namespace Example_11_14
{
	/// <summary>
	/// Summary description for TransplantDB.
	/// </summary>
	public class TransplantDB : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Button SureBtn;
		protected System.Web.UI.WebControls.Label DBType;
		protected System.Web.UI.WebControls.ListBox DBTypeList;

		private readonly string DBCONNECTIONSTRING = ConfigurationSettings.AppSettings["SQLCONNECTIONSTRING"].ToString();
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// Put user code to initialize the page here
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.SureBtn.Click += new System.EventHandler(this.SureBtn_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void SureBtn_Click(object sender, System.EventArgs e)
		{
			DatabaseType dbType;

			switch(Int32.Parse(DBTypeList.SelectedValue))
			{
				case 0:
				{
					dbType = DatabaseType.SQLServer;
					break;
				}
				case 1:
				{
					dbType = DatabaseType.Oracle;
					break;
				}
				case 2:
				{
					dbType = DatabaseType.Access;
					break;
				}
				default:
					dbType = DatabaseType.SQLServer;
					break;
			}

			try
			{
				///創建訪問數據庫的鏈接類型			
				DBType.Text = DataFactory.CreateConnection(DBCONNECTIONSTRING,dbType).ToString();
			}
			catch(Exception ex)
			{
				DBType.Text = ex.Message;
			}
		}
	}
}