Using Library Items and Server-Side Includes in Java

Creator Denso QR Bar Code in Java Using Library Items and Server-Side Includes

If you re unsure of the name of the library item you want to delete, select an item from the list and look in the preview pane to see a thumbnail of the selected item

Delete key on your keyboard and confirm the deletion You can also click the Delete button at the bottom of the Assets panel and confirm the deletion This deletion process permanently removes the library item from the library, although it doesn t delete instances of that item from the contents of any documents that used it Therefore, delete your library items with care

After you insert a library item into a document, you can t edit an individual instance of it unless you break the link between the library item and the document by detaching it and converting the library item into editable text Then, when you update the original library item after an instance is detached, the detached instance doesn t update along with the other instances of the library item You may want to detach an instance of a library item from its source for many reasons: You need to modify a significant portion of the library item on a single page You ve only used the library item on a single page You want to insert a library item created for another site You insert it on a page, detach it to break the links to that other site, and then recreate the link within the currently managed site To detach a library item and convert it into editable text, follow these steps:

1 Select the library item in the document that you want to convert 2 Click the Detach from Original button in the Properties inspector

Dreamweaver alerts you that making the item editable prevents it from receiving updates from the original library item

The selected library item then loses its library item highlighting and markup to become normal, editable text To modify library items that contain Dreamweaver behaviors, you must detach the library item from its source to make the behavior editable After editing the behavior, use the updated content to create a new library item or use it as a replacement for its previous version

To use an existing library item on one Web site in another managed site, follow these steps:

1 In the Files panel, click the Assets tab and click the Library button 2 From the list of Library items that appears, select the library item that

the Options menu in the Assets panel and select the desired managed site by name from the submenu Dreamweaver copies the duplicate into the selected managed site If the new site does not already have a Library folder, Dreamweaver creates one and places the copied library item into it

Occasionally, you delete a library item from the Library area of the Assets panel even though instances of it still remain throughout the site If you want the library item back to control modifications made to all the instances, you must re-create it Here s how to re-create a library item:

A new library item is added to the Library area of the Assets panel If a library item already exists there with the same name, Dreamweaver asks if you want to overwrite the existing file Click OK to proceed A master copy of the re-created library item is inserted into the Library folder

If you understand how to create and use library items (as described earlier in the chapter), you can quickly grasp the concept behind serverside includes (SSIs) Like library items, SSIs can be composed of HTML, JavaScript, or graphics But unlike library items, they have no opening and closing comment tags surrounding the code and the content of the SSI is not hard-coded into your Web page Rather, a simple line of code is added to your page that points to the external SSI file on your server, like this: