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Microsoft Sharepoint Products and Technologies Resource Kit eBook

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Custom Properties<br />

Chapter 31: Working with Web Parts 827<br />

■ Help Link. Specifies the location of an HTML-formatted file containing Help<br />

information that will help the end user interact with the Web Part. The Help<br />

information is displayed in a separate browser window when you click the<br />

Help comm<strong>and</strong> on the Web Part menu.<br />

■ Icon File (Large). Also known as the PartImageLarge property; specifies the<br />

location of a file containing a large Web Part icon. This icon is used when the<br />

Web Part is listed in a gallery. The image size must be 16 by 16 pixels.<br />

■ IconFile (Small). Known as the PartImageSmall property; is not currently<br />

used by the Web Part infrastructure <strong>and</strong> is reserved for future use, so this property<br />

is irrelevant in Windows SharePoint Service 2.0 <strong>and</strong> SharePoint Portal<br />

Server 2003.<br />

■ Missing Assembly Error. Specifies a message that appears when you<br />

import a Web Part for which the assembly file is missing or incorrect. An<br />

assembly can contain one or more Web Parts. If this property is not set, a system<br />

default message will be displayed.<br />

■ Target Audiences. By clicking the Select button, the Select Audiences – Web<br />

Page dialog box is displayed. This allows you to target a Web Part to a specific<br />

audience. Add selected audiences from the available audiences list, <strong>and</strong> click<br />

OK. If no audiences are targeted, the Web Part is viewed by all portal users. To<br />

view the audiences that the Web Part targets, display the Select Audiences –<br />

Web Page dialog box. This property is valid only on portal site Web Part Pages.<br />

Custom Properties are displayed under group headings in the Web Part tool page as<br />

specified by their category attribute in the tool part CustomPropertiesToolPart, as<br />

described earlier in this chapter. Any property that is not displayed under the<br />

Advanced, Layout, or Appearance group headings is a custom property. The custom<br />

properties displayed in the Web Part tool pane are dependent on the Web Part that<br />

you modify.<br />

A group heading that is often visible when you are editing a Web Part is Miscellaneous.<br />

If a developer does not specify a category attribute, or if Default or Miscellaneous<br />

is specified, all the Web Part’s custom properties are displayed under the<br />

Miscellaneous heading of the tool pane. For example, the Grouped Listings Web Part<br />

<strong>and</strong> Web Parts based on the Grouped Listings Web Part have the Cache Timeout <strong>and</strong><br />

Cache Per User properties listed under this Miscellaneous section.

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