Contents tagged with JavaScript
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jQuery in ASP.NET Talk at PDC
Mark your calendars and come to my jQuery in ASP.NET talk at PDC. It looks like my talk is scheduled for Tuesday (10/28/2008) at 5:15pm. You can still register for the PDC here:
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ASP.NET MVC Tip #45 – Use Client View Data
In this tip, I explore one approach to building Ajax applications with ASP.NET MVC. I show how you can use view data when building Ajax applications with ASP.NET MVC in the same way as you would use view data when building server-side application. I demonstrate how to create a custom HTML Helper that renders client view data.
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ASP.NET MVC Tip #7 – Prevent JavaScript Injection Attacks with Html.Encode
In this tip, you learn that JavaScript Injection attacks are much more serious than you might think. I show you how to do very evil things with an ASP.NET MVC website using a JavaScript Injection attack and then I explain an easy way to prevent this type of attack.
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ASP.NET AJAX In-Depth: Object Inheritance
The goal of the blog entry is simple: I want to understand everything happening under the covers when you take advantage of ASP.NET AJAX inheritance. So, let’s start with a simple code sample:
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Two Methods of Creating JavaScript Objects: Prototype Inheritance and the Xerox Method
In this blog entry, I examine different methods of building new JavaScript objects from existing JavaScript objects. For lack of better names, I’m calling the first method the Prototype Inheritance method and the second method the Xerox method. The goal of this blog entry is discuss the relative strengths and weaknesses of the two methods. At the very end of this entry, I briefly examine the approach taken by the ASP.NET AJAX framework.
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Creating JavaScript Properties in ASP.NET AJAX
JavaScript (or more accurately, ECMAScript 3.0) does not support properties. JavaScript objects do not have properties in the same sense as C# or VB.NET objects have properties. That’s unfortunate, since there are benefits to C# and VB.NET properties:
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JavaScript Magic Properties: Using __count__ , __proto__ , and __parent__
Two of the Mozilla implementations of the JavaScript engine, SpiderMonkey and Rhino, support a special list of magic properties. Because SpiderMonkey is the JavaScript engine used by Firefox, this means that you can use these magic properties in JavaScript code that is executed within the Firefox browser. Unfortunately, these magic properties are not supported by Microsoft Internet Explorer or Opera. There is no expectation that any browser other than a Mozilla browser will ever support these properties since the properties are not part of the ECMAScript standard that defines the JavaScript standard.