Microsoft Sharepoint Products and Technologies Resource Kit eBook

914 Part IX: Maintaining a Server in Windows SharePoint Services
More Info For more information about working with Web Parts in SharePoint
Products and Technologies, see Chapter 31, “Working with Web Parts.” For
more information about using Visual Studio .NET to create Web Parts, see
Chapter 37, “Using Visual Studio .NET to Create Web Parts.”
Grouping, Filtering, and Sorting
In the previous section, we examined how the Data View toolbar can be used to
group, filter, and sort the data displayed. This was performed at run time in the
browser by the end user. The author might want to perform similar operations at
design time.
Conceptually, when a filter condition is applied to a Data View at run time
using the Data View toolbar, it affects only the presentation of the data; the Data
View itself contains the entire set of records. When a Data View is filtered at design
time, however, the filter is actually limiting what records are available in the Data
View. Similar comments apply to design time vs. run time sorting and grouping.
In this section, we examine how Data Views can be filtered, sorted, and
grouped at design time. These operations can be performed under the Manage View
Settings category of the Data View Details task pane.
We want the Data View to contain records for companies whose names start
with an “L”. These records should be sorted by the Company Name field, and
they should also be grouped by the same field. The following steps build on the
DataView.aspx from the previous section.
To group, filter, and sort the data displayed at design time
1. Open DataView.aspx in FrontPage 2003 Design view.
2. Ensure the Data View Details task pane is displayed. If it is not, you can display
it by right-clicking anywhere in the Data View and choosing Data View Properties
in the pop-up menu.
3. Select a Data View field value for the field we want to format on a given
condition. In our example, the value for a CompanyName should be selected
(such as “Great Lakes Food Market”).
4. In the Data View Details task pane, click Filter under the Manage view settings
category to open the Filter Criteria dialog box. (See Figure 32-44 earlier
in the chapter.) Note that the Data View filter defaults to the filter originally created
for the Customers on the Northwind data source.
5. Click the Click here to add a new clause gray bar, choose CompanyName
from the Field Name drop-down list, change the Comparison value to Begins
With, and type the text L into the Value text box. Click the OK button to apply
the criteria.