Apply Grouping to List View Data 将分组应用于列表视图数据

This lesson will teach you how to apply grouping to List View data. For this purpose, you will group Contact List View data by the Department property.

本课将教您如何将分组应用于列表视图数据。为此，您将按"部门"属性对联系人列表视图数据进行分组。

Note 注意

Before proceeding, take a moment to review the Place an Action in a Different Location lesson.

在继续之前，请花点时间复习"将操作置于不同位置"课程。

• Invoke the Model Editor for the MySolution.Module project. Navigate to the Views | MySolution.Module.BusinessObjects | Contact_ListView | Columns node to invoke the Grid List Editor Designer. It will display the default structure of the List View. You can customize the default appearance of the List View. Invoke the Customization window by right-clicking the table header and selecting Show Group By Box.

• 调用 MySolution.模块项目的模型编辑器。导航到视图 |My解决方案.模块.业务对象 |Contact_ListView |列节点以调用网格列表编辑器设计器。它将显示列表视图的默认结构。您可以自定义列表视图的默认外观。通过右键单击表标题并选择"按框显示组"来调用"自定义"窗口。

• This will set Contact_ListView's IsGroupPanelVisible property to true and display a special group area for Contact List Views in both the WinForms and ASP.NET applications. To specify the column by which the Contact List View will be grouped by default, drag the column's header to the group area. A nested grouping can be applied by dragging multiple columns to the group area. Group the Contact List View against the Department column, then against the Position column.
• 这将Contact_ListView的 IsGroupPanelVisible 属性设置为 true，并在 WinForms 和ASP.NET应用程序中显示联系人列表视图的特殊组区域。要指定默认情况下联系人列表视图的分组列，请将列的标题拖动到组区域。通过将多列拖动到组区域，可以应用嵌套分组。将联系人列表视图分组到"部门"列，然后对"职位"列进行分组。

• Run the WinForms or ASP.NET application and select the Contacts item in the navigation control. The group area is displayed in Contact List View. The column order within this area represents the nesting order of data groups. The Contact List View is grouped by the Department and Position columns.
• 运行 WinForms 或ASP.NET应用程序，并在导航控件中选择"联系人"项。组区域显示在联系人列表视图中。此区域内的列顺序表示数据组的嵌套顺序。联系人列表视图按"部门和职位"列分组。

• You can specify this group area in runtime similarly to described above method. If you want to reset changes clicking Reset View Settings button.
• 您可以在运行时指定此组区域，这与上述方法类似。如果要重置更改，请单击"重置视图设置"按钮。

Note 注意

There is another approach for grouping based on changing the value of GroupIndex property of specific columns (Columns node's child nodes). Refer to the List View Columns Customization article to learn more.

另一种基于更改特定列（列节点的子节点）的 GroupIndex 属性的值进行分组的方法。有关详细信息，请参阅列表视图列自定义一文。

You can see the changes made in this lesson in the Model Editor invoked for the Model.DesignedDiffs.xafml file located in the Main Demo | MainDemo.Module project. The MainDemo application is installed in %PUBLIC%\Documents\DevExpress Demos 19.2\Components\eXpressApp Framework\MainDemo by default. The ASP.NET version is available online at http://demos.devexpress.com/XAF/MainDemo/

您可以在本课中为模型调用的模型编辑器中所做的更改。主演示模块项目。主演示应用程序安装在%PUBLIC%\Documents\DevExpress Demos 19.2\Components\eXpressApp Framework\MainDemo by default. The ASP.NET version is available online at http://demos.devexpress.com/XAF/MainDemo/

.