閲覧総計：&counter(); （本日：&counter(today); 昨日：&counter(yesterday);)
プログラムを作成していると「これ処理が遅いなあ。どこの処理にどれくらいの時間
が掛かっているんだろう？」とコードの処理時間を計測したいニーズが発生します。
コードの処理時間を計測する方法 Stopwatchクラスの使用法を確認したのでメモを
残しておきます。 10/09/04
【参考にしたページ】
http://www.atmarkit.co.jp/fdotnet/dotnettips/412stopwatch/stopwatch.html
開発環境：VWD2008 + Access2003
サーバ：ASP.NET3.5 + Access2003
【実行画面】
#ref(stopwatch稼働画面.jpg);
【Stopwatch.aspx】
<%@ Page Language="VB" %>
<%@ Import Namespace="System" %>
<%@ Import Namespace="System.Diagnostics" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<script runat="server">
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Dim sw As New Stopwatch
sw.Start()
System.Threading.Thread.Sleep(1000)
sw.Stop()
' ミリ秒単位で出力
Dim millisec As Long = sw.ElapsedMilliseconds
Label1.Text = millisec ' 出力例：998
' TimeSpan構造体で書式付き表示
Dim ts As TimeSpan = sw.Elapsed
Label2.Text = ts.ToString ' 出力例：00:00:00.9984668
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
コード実行時間を計測するStopwatch機能の使用法の確認 10/08/31<br />
↓参考ページ<br />
<a href="http://www.atmarkit.co.jp/fdotnet/dotnettips/412stopwatch/stopwatch.html">
http://www.atmarkit.co.jp/fdotnet/dotnettips/412stopwatch/stopwatch.html</a><br />
<br />
<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="実行時間計測" />
<br />
<br />
実行時間(ミリ秒表示)：<asp:Label ID="Label1" runat="server" Text="???"></asp:Label>
ミリ秒<br />
<br />
実行時間(時分秒表示)：<asp:Label ID="Label2" runat="server" Text="???"></asp:Label>
<br />
</div>
</form>
</body>
</html>
【参考にしたページ】
http://www.atmarkit.co.jp/fdotnet/dotnettips/412stopwatch/stopwatch.html
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