The dropdown menus can be easily created with CSS.
Either horizontal or vertical menus are built using unordered list, that is ul. The dropdown feature is created combining the hover pseudoclass along with the visibility property of nested lists.
The following example shows a horizontal menu where the items expand downward.

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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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