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DataGridViewRowContextMenuStripNeededEventArgs Class

Provides data for the RowContextMenuStripNeeded event.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public ref class DataGridViewRowContextMenuStripNeededEventArgs : public EventArgs

The RowContextMenuStripNeeded event occurs only when the DataGridView control DataSource property is set or its VirtualMode property is true. Handling the RowContextMenuStripNeeded event is useful when you want to display a shortcut menu determined by a row's current state or the values it contains.

When you handle the RowContextMenuStripNeeded event, the shortcut menu that you specify in the handler is shown whenever the user right-clicks a row unless the CellContextMenuStripNeeded event overrides the shortcut menu for the specific cell that was clicked.

The RowContextMenuStripNeeded event also occurs whenever the value of the DataGridViewRow::ContextMenuStrip property is retrieved, either programmatically or when the user right-clicks a row.

You can use the RowIndex property to determine the state of a row or the values it contains, and use this information to change or modify the ContextMenuStrip property. This property is initialized with the value of the row ContextMenuStrip property, which the event value overrides.

Handle the RowContextMenuStripNeeded event when working with large amounts of data to avoid the performance penalties of setting the row ContextMenuStrip value for multiple rows. For more information, see Best Practices for Scaling the Windows Forms DataGridView Control.

For more information about handling events, see Consuming Events.

The following code example handles the RowContextMenuStripNeeded event to provide a ContextMenuStrip based on the title of the employee. In this example, there are two shortcut menus, one for managers and one for all other employees.

No code example is currently available or this language may not be supported.

System::Object
  System::EventArgs
    System.Windows.Forms::DataGridViewRowContextMenuStripNeededEventArgs

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0

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