The SqlDataSource.EnableCaching property allows to save the results of a specific database query.
When the caching is activated, if you reset EnableCaching to false, the query result is not retrieved from the cache anymore but it's re-executed every time.
But surprisingly, if you reset EnableCaching to true again, the data is retrieved from the old cache.

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Here's a tutorial on how to obtain an image reflected on the water using Photoshop.

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Here's the correct way to center a text vertically using only CSS.

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The JavaScript events paradigm has three implementations, but all incompatible each other.
Let's try to put some order and to understand which one to use and when.

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Microsoft IIS caches all the style sheets that are placed inside the App_Themes folder, remembering the ones that are used by the web site pages (by all pages, not only the current one); the effect is easily visible looking at the HTML code sent to the client, noting that are included CSS links that were not specified for the page.
This behavior requires a strong attention on styles inheritance, but also can make Internet Explorer versions prior to the 9 to overflow the maximum number of style tags allowed: in these versions the maximum number of style tags is 32 and all the following ones are ignored.

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