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Cutting Edge: Implement Custom Cache Dependencies in ASP.NET 1.x

Posted By:      Posted Date: August 21, 2010    Points: 0   Category :ASP.Net

One of the most compelling improvements that ASP. NET brought to ASP programming was the Cache object. The Cache has some similarities to the Application object and is a container of global data (as opposed to session-specific data) that features a fair number of innovative characteristics.

Dino Esposito

MSDN Magazine July 2004

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Cutting Edge: Custom Data Control Fields


In ASP. NET 2. 0, the GridView and DetailsView controls are designed to work together. They don't merely provide complementary services, they also share a number of helper classes and components. The output of the GridView control consists of a sequence of rows, each with a fixed number of columns.

Dino Esposito

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Cutting Edge: Flexible Custom Data Views


ASP. NET 1. x introduced some powerful and useful data-bound controls. However, none were designed specifically to manage the view of a single record. When you build master/detail views, you need to display the contents of a single record.

Dino Esposito

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Cutting Edge: Custom Script Callbacks in ASP.NET


ASP. NET client callbacks represent a neat and elegant way to execute server-side code without posting and refreshing the current page. I discussed ASP. NET callbacks in the August and December 2004 installments of Cutting Edge, considering them from the perspective of rendered pages making background callbacks to the server, sending input data to the relevant page, and receiving a response.

Dino Esposito

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How to implement custom HttpContext for each request under class that implements IHTTPHandler


Hello All,

I created an application and implemented IHTTPHandler for all incoming request ending with ".aspx" extension.

Under "ProcessRequest" module, I am creating an instance of HttpContext (with URL attributes different from my application's URL i.e. if I am working on localhost then speciying Yahoo.com as its URL) and assigning it to "context" which comes as method argument.

After redirection, an error is generated. Also, the custom HTTPContext is not passed to the requested page (default.aspx, in my case.)

Code is as follows.

    Public Sub ProcessRequest(ByVal context As System.Web.HttpContext) Implements System.Web.IHttpHandler.ProcessRequest
            Dim requestedUrl As String
            Dim targetUrl As String
            Dim urlLength As Integer
            'Save settings which will be used while redirecting to appropriate page
            requestedUrl = context.Request.RawUrl
            If requestedUrl.IndexOf("?") >= 0 Then
                targetUrl = requestedUrl.Substring(0, requestedUrl.IndexOf("?"))
                targetUrl = requestedUrl
            End If
            If targetUrl = Nothing Or targetUrl.Length = 0 Then
                targetUrl = requestedUrl
            End If

Cutting Edge: Don't Worry, Be Lazy


Being lazy in software development can be a good thing, but until the Microsoft .NET Framework 4, coders had to implement lazy behavior themselves. Dino Esposito shows how to use the new Lazy class to maximize your resources.

Dino Esposito

MSDN Magazine August 2010

Cutting Edge: Expando Objects in C# 4


The .NET Framework 4 introduces some new features that enable you to go beyond static types. We explore dynamically expando objects and demonstrate how they can be used like dynamically updatable dictionary objects.

Dino Esposito

MSDN Magazine July 2010

Cutting Edge: C# 4.0, the Dynamic Keyword and COM


Are you a Microsoft .NET Framework programmer who struggles with critical legacy applications using COM objects that are beyond your control? Dino Esposito shows how to lessen the burden by going dynamic.

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Cutting Edge: Using the Dynamic Keyword in C# 4.0


C# 4 provide a new dynamic keyword that enables dynamic typing in what has traditionally been a strongly typed language. We explain how the dynamic keyword works and what it offers that casting, var, and System.Object cant' match.

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Cutting Edge: Revisiting Asynchronous ASP.NET Pages


If you need to scale up an existing Web application, you should first look to asynchronous operations, says Dino Esposito. He explains how new features coming in ASP.NET MVC 2 make this easier.

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Cutting Edge: ASP.NET Ajax Library and WCF Data Services


This month Dino takes a look at the JavaScript components coming in the ASP.NET Ajax Library and explains how they can be used for effective client-side data access.

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Cutting Edge: Predictive Fetch with jQuery and the ASP.NET Ajax Library


Dino Esposito builds upon his exploration of new data binding features coming in the ASP.NET Ajax Library, explaining how to implement the predictive fetch design pattern.

Dino Esposito

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