You have to “implement” either IRequiresSessionState or IReadOnlySessionState, with former providing full access to session, and the latter providing read-only access. I’m quoting “implement” here because these two are so-called “marker interfaces”, which means they have no members.
Are you using IIS7, if so is the application pool running in classic or pipelined mode? If it is IIS7 in pipelined mode then the handler reference needs to go into the following section <system.webServer> <handlers> </handlers> <system.webServer> rather than in the following section. <system.web> <httpHandlers> </httpHandlers> </system.web>
WriteTo() is resetting the read position to zero before copying the data – CopyTo() on the other hand will copy whatever data remains after the current position in the stream. That means if you did not reset the position yourself, no data will be read at all. Most likely you just miss the following in … Read more
Here’s a full working example I wrote for you: <%@ Page Title=”Home Page” Language=”C#” %> <%@ Import Namespace=”System.IO” %> <script runat=”server” type=”text/c#”> protected void Page_Load(object sender, EventArgs e) { // Check to see whether there are uploaded files to process them if (Request.Files.Count > 0) { int chunk = Request[“chunk”] != null ? int.Parse(Request[“chunk”]) : … Read more
Asp.Net 4.0+ comes with a very strict built-in request validation, part of it is the potential dangerous characters in the url which may be used in XSS attacks. Here are default invalid characters in the url : < > * % & : \ ? You can change this behavior in your config file: <system.web> … Read more
Most of the browser caching issues can be resolved by viewing the response headers (can be done in Google chrome developer tools). Now the clientCache section of your web.config file should set your output caching to a maximum age as you see in the image below has set the max-age to 86400 which is 1 … Read more
Have your HttpHandler implement the IRequiresSessionState interface. It will enable session state use. IRequiresSessionState can be found in the System.Web.SessionState namespace.
In the simplest terms, an ASP.NET HttpHandler is a class that implements the System.Web.IHttpHandler interface. ASP.NET HTTPHandlers are responsible for intercepting requests made to your ASP.NET web application server. They run as processes in response to a request made to the ASP.NET Site. The most common handler is an ASP.NET page handler that processes .aspx … Read more
An ASP.NET HTTP handler is the process (frequently referred to as the “endpoint”) that runs in response to a request made to an ASP.NET Web application. The most common handler is an ASP.NET page handler that processes .aspx files. When users request an .aspx file, the request is processed by the page through the page … Read more
The normal entry point for a handler is the ProcessRequest method. However you may have code in the class constructor which puts together some instance values which are expensive to build. If you specify Reusable to be true the application can cache the instance and reuse it in another request by simply calling its ProcessRequest … Read more