Data Paging

• Jan 09, 2023
• 2 minutes to read

The GridControl allows you to display its content across multiple pages. End-users can use the built-in pager to navigate through the GridControl’s data:

View Example: Implement Data Paging

Note

The TreeList View does not support data paging.

Enabling Data Paging

Set the GridViewBase.AllowPaging property to true to enable data paging:

XAML

<dxg:GridControl>
    <!---->            
    <dxg:GridControl.View>
        <dxg:TableView AllowPaging="True"  />
    </dxg:GridControl.View>
</dxg:GridControl>

The table below describes how Data Paging works depending on the data binding mode:

Data Binding Mode	How Data Paging Works
Regular Mode	The GridControl loads all data to memory. End-users use the pager to navigate through loaded data.
Server Mode	The GridControl loads and displays the first portion of data from the data source and requests subsequent data sections when an end-user navigates to another page. The GridControl caches data internally. Data is not reloaded when end-users navigate to previous pages.
Virtual Sources	The PagedSource and PagedAsyncSource allow you to request data manually. You can obtain the current page’s rows or load all data at once. The GridControl caches data internally. The PagedAsyncSource.FetchPage and PagedSource.FetchPage events are not invoked when end-users navigate to a previous page.

Data Paging Options

The GridControl has the following properties and events to allow you to control data paging manually:

Method	Description
GridViewBase.PageSize	Gets or sets the maximum number of rows that can be displayed on a page.
GridViewBase.CurrentPageIndex	Gets or sets the index of the current page.
GridViewBase.PageCount	Gets the number of pages displayed in the GridControl.
GridViewBase.PagerNumericButtonCount	Gets or sets the maximum number of numeric buttons that can be displayed within the pager control.
GridViewBase.CurrentPageIndexChanging	Occurs before the selected page is changed.
GridViewBase.CurrentPageIndexChanged	Occurs after the selected page is changed.

Data Paging Limitations

Data paging does not support the following features:

• Grouping data
• New Item Row in the bottom position
• Fixed Rows
• Master-Detail Data Representation