An overview page views the entire data set at a high level or as a point of reference when viewing the data. As you develop overview pages, keep the following in mind:
- The basic setup for an overview page is a title, a cplan, a screen defined within a tab block, and one or more elements to display.
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An overview page is generally the first page listed in the Sections button and therefore the first tag under the sections block in the script.
NOTE: Overview pages can be used in both the sections and pages blocks.
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One or more cPlans can be defined for an overview page. This might include:
- A default cPlan for the page.
- Each element containing a cPlan that overrides the default view.
- Using a cbase-input attribute within a cplan attribute is not supported with divetab files.
- Overview pages are not supported on the iPhone.
- While the main function of an overview page is to provide the overall summary of a data set, you can filter an overview page to display a specified subset of data.
- Any cPlan can be filtered during the design phase to subset data. This is important to note when working with overview Pages, because parameters are not supported by the overview page type.
- An overview page automatically caches data locally.
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An overview page uses a free-form layout which you can customize:
- Divide data into one or more tabs to display various subsets of a data set
- Divide each tab into one or more screens when there is a large amount of data to display
- Design a combination of data and other elements on the page
- Customize a title
- An overview page contains one or more elements that determine how content appears on the page and the action that occurs, if any, when an item is selected.
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An overview page can link to report, ad hoc, cross, dive, and central pages.
You can include a link to another page for the chart column attribute. If a parameter is included on the target page, the value selected is passed to the target page.
For Bar, H-Bar, and Line charts, the links are accessible through the chart values. For Pie charts, the links are accessible through the legend and chart values.
- Overview pages do not need to include dimensions, which makes them useful as linked reference pages.