Simple .NET/ASP.NET PDF document editor web control SDK

As mentioned earlier, site speed influences site rank, and as such, a theme should be maximized for download speed. An easy way to optimize download speed is to reduce the number of HTTP GET requests. Every time a browser requests an image, it makes two GET requests, which dramatically increases download time when 30 or more images are required. The yslow module for Firefox provided by Yahoo! does a great job of helping you optimize your site, as well as providing you with additional optimization techniques not covered in this appendix. To reduce the number of required images, you can start by limiting the number of images called from the CSS file; when a browser opens a web page, it downloads all CSS images, regardless of whether the image is used on the page. This means if you have 20 images embedded in your CSS file, the browser is going to make 20 separate image requests. A CSS sprite allows you to combine many of these images into a single image, significantly reducing the number of required image files. A program to help create CSS sprites is available at http://spriteme.org. Furthermore, you can embed images using the src tag so that an image will be downloaded only when a user visits that specific page. For example, you may have an image that appears in the header of a blog section but not on the homepage. My recommendation is to create a block specifically for the blog section and add your src tag directly into the block body. Using this approach, the block will appear only in the blog section, at which point the image will be downloaded.

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Our starting point when using isolated storage is a store and you can think of any given store as being somewhat like one of the well-known directories we dealt with in the regular filesystem. The framework creates a folder for you when you first ask for a store with a particular set of isolation criteria, and then gives back the same folder each time you ask for the store with the same criteria. Instead of using the regular filesystem APIs, we then use special methods on the store to create, move, and delete files and directories within that store. First, we need to get hold of a store. We do that by calling one of several static members on the IsolatedStorageFile class. Example 11-49 starts by getting the user store for a particular assembly. We ll discuss what that means shortly, but for now it just means we ve got some sort of a store we can use. It then goes on to create a folder and a file that we can use to cache some information, and retrieve it again on subsequent runs of the application.

static void Main(string[] args) { IsolatedStorageFile store = IsolatedStorageFile.GetUserStoreForAssembly(); // Create a directory - safe to call multiple times store.CreateDirectory("Settings"); // Open or create the file using (IsolatedStorageFileStream stream = store.OpenFile( "Settings\\standardsettings.txt", System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.ReadWrite)) { UseStream(stream); }

This configuration differs from the previous .aspx route configuration in the extension only. When it comes to deploying this route configuration, we need to perform additional steps in IIS. Because IIS isn t configured to handle requests from the .mvc extension, we need to add a mapping that will enable the ASP.NET ISAPI filter to handle the .mvc extension. To map the new extension, follow these steps:

}

Console.ReadKey();

Entering SEO-friendly content in a WYSIWYG editor is largely a process of emphasizing specific key words and phrases. Search engines weigh words that are in bold or italics. For this reason, you will want to salt your content with key words and phrases that are then emphasized through the editor. It s also good practice to make sure all links have a title, as shown in Figure A-6. Most editors have the ability to add this, including advanced configuration options to add rel tags as well.

Create the website with the default configuration. In the Home Directory tab in the Properties dialog box for the website, click Configuration, as shown in figure 6.6. In the Mappings tab in the Application Configuration dialog box, click Add. In the Add/Edit Application Extension Mapping dialog box, configure these settings, as shown in figure 6.7: Set the Executable value to the path to aspnet_isapi.dll. This is typically at C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet_isapi.dll. Use the .NET 2.0 version of the DLL. Set the Extension value to .mvc. Make sure the extension has the leading dot. Select All Verbs in the Verbs section. If you know the HTTP verbs you wish to support, provide a comma-separated list of the verbs in the Limit To section. Uncheck the Verify That File Exists option. The requested URLs won t map to a location on disk, and IIS responds with a 404 error if you don t uncheck this value.

We create a directory in the store, called Settings. You don t have to do this; you could put your file in the root directory for the store, if you wanted. Then, we use the OpenFile method on the store to open a file. We use the standard file path syntax to specify the file, relative to the root for this store, along with the FileMode and FileAc cess values that we re already familiar with. They all mean the same thing in isolated storage as they do with normal files. That method returns us an IsolatedStorageFile Stream. This class derives from FileStream, so it works in pretty much the same way. So, what shall we do with it now that we ve got it For the purposes of this example, let s just write some text into it if it is empty. On a subsequent run, we ll print the text we wrote to the console.