Loading an ASP.NET Page Class dynamically in an HttpHandler


	Loading an ASP.NET Page Class dynamically in an HttpHandler

travislaborde

8-2-2007 9:08 AM

549 views

tags:

programming, asp.net

travislaborde says:

not sure why I find this interesting, but I'm sure one day I'll do it

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/7f2fc6a1-5a0e-4c9a-ae51-afeace42d913/05FB214B-D07F-4EFC-96EC-CA29E8858983/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.west-wind.com/weblog/posts/120530.aspx" href="http://www.west-wind.com/weblog/posts/120530.aspx" style="font-size: 11px;">www.west-wind.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.west-wind.com/weblog/posts/120530.aspx">Loading an ASP.NET Page Class dynamically in an HttpHandler</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.west-wind.com/weblog/posts/120530.aspx">I ran into an interesting post on the ASP.NET forums today where someone is trying to dynamically invoke a page class inside of an HttpHandler. Basically the idea is that you have a class for the page that exist and you're dynamically invoking the class rather than letting the ASP.NET BuildManager deal with loading the page from disk and doing its thing.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.west-wind.com/weblog/posts/120530.aspx"><SPAN>public</SPAN> <SPAN>class</SPAN> <SPAN>TestHandler</SPAN> : System.Web.<SPAN>IHttpHandler
</SPAN>    {
<SPAN>public</SPAN> <SPAN>bool</SPAN> IsReusable
        {
            <SPAN>get</SPAN> { <SPAN>return</SPAN> <SPAN>false</SPAN>; }
        }
<SPAN>public</SPAN> <SPAN>void</SPAN> ProcessRequest(System.Web.<SPAN>HttpContext</SPAN> context)
        {
<SPAN>//Page page = BuildManager.CreateInstanceFromVirtualPath("/weblog/schedulerTest.aspx", typeof(SchedulerTest) ) as Page; 
</SPAN>            <SPAN>//BuildManager.GetVirtualPathDependencies("/weblog/testpage.axd");
</SPAN>            <SPAN>Page</SPAN> page = <SPAN>new</SPAN> <SPAN>SchedulerTest</SPAN>();  // An ASPX Page class (note: CodeBehind)
            <STRONG>page.AppRelativeVirtualPath = context.Request.AppRelativeCurrentExecutionFilePath; 
</STRONG>            page.ProcessRequest(context);
}
    }</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.west-wind.com/weblog/posts/120530.aspx">There are a couple of big gotchas</blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/05FB214B-D07F-4EFC-96EC-CA29E8858983/blog/" title="blog or email this clip"><img src="http://content6.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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