📄 traceisenabled.aspx

📁 asp.net技术内幕的书配源码

💻 ASPX

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<%@ Page Language="C#" Trace="True" %>

<script language="C#" runat=server>

void Page_Load(Object sender , EventArgs e) 
{
	ArrayList colArrayList;
	string  strTraceMessage= "";

	colArrayList = new ArrayList();
	colArrayList.Add( "red" );
	colArrayList.Add( "green" );
	colArrayList.Add( "aliceblue" );

	if ( Trace.IsEnabled )
	{
	     
		foreach ( string strItem in colArrayList)
			strTraceMessage += strItem + ",".ToString();
	    
		Trace.Warn(strTraceMessage);
	}

	dropColors.DataSource = colArrayList;
	dropColors.DataBind();
}

</Script>

<html>
<head><title>TraceIsEnabled.aspx</title></html>
<body>

<form Runat="Server">

<h2>Enter your Favorite Color</h2>

<b>Favorite Color:<b>
<asp:DropDownList
  ID="dropColors"
  Runat="Server" />

</form>

</body>
</html>

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