Implementing the UI Automation GridItem Control Pattern


This documentation is intended for .NET Framework developers who want to use the managed UI Automation classes defined in the System.Windows.Automation namespace. For the latest information about UI Automation, see Windows Automation API: UI Automation.

This topic introduces guidelines and conventions for implementing IGridItemProvider, including information about properties. Links to additional references are listed at the end of the overview.

The GridItemPattern control pattern is used to support individual child controls of containers that implement IGridProvider. For examples of controls that implement this control pattern, see Control Pattern Mapping for UI Automation Clients.

Implementation Guidelines and Conventions

When implementing IGridProvider, note the following guidelines and conventions:

  • Grid coordinates are zero-based with the upper left cell having coordinates (0, 0).

  • Merged cells will report their Row and Column properties based on their underlying anchor cell as defined by the UI Automation provider. Typically, it will be the topmost and leftmost row or column.

  • IGridItemProvider does not provide for active manipulation of the grid such as merging or splitting cells.

  • Controls that implement IGridItemProvider can typically be traversed (that is, a UI Automation client can move to adjacent controls) by using the keyboard.

Required Members for IGridItemProvider

The following properties and methods are required for implementing IGridItemProvider.

Required members Member type Notes
Row Property None
Column Property None
RowSpan Property None
ColumnSpan Property None
ContainingGrid Property None

This control pattern has no associated methods or events.


This control pattern has no associated exceptions.

See also