KeyboardHandlerServiceWrapper.OnKeyDown(PortableKeyEventArgs) Method

Override this method to handle the KeyDown event.

Namespace: DevExpress.Services

Assembly: DevExpress.Data.v20.2.dll

NuGet Packages: DevExpress.Data, DevExpress.WindowsDesktop.Data

Declaration

C#

public virtual void OnKeyDown(
    PortableKeyEventArgs e
)

VB.NET

Public Overridable Sub OnKeyDown(
    e As PortableKeyEventArgs
)

Parameters

Name	Type	Description
e	DevExpress.Portable.Input.PortableKeyEventArgs	This class is equivalent to System.Windows.Forms.KeyEventArgs and contains information about the pressed key and key modifiers.

Remarks

The KeyDown event occurs when a key is pressed while a control is focused. The KeyDown event precedes the KeyPress event, and the KeyUp event occurs when a user releases the key.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the OnKeyDown(PortableKeyEventArgs) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-handle-key-press-events-via-services-e1735/CS/KeyboardHandler/Form1.cs#L45

    }
    base.OnKeyDown(e);
}

how-to-implement-the-next-previous-word-selection-commands-e2931/CS/Form1.cs#L54

default:
    base.OnKeyDown(e);
    break;

service-substitution-use-keyboard-and-mouse-services-to-implement-zooming-e677/CS/ServicesMouseZoom/ServiceHandler.cs#L63

    }
    base.OnKeyDown(e);
}

how-to-handle-key-press-events-in-the-schedulercontrol-e2906/CS/DXScheduler_KeyHandling/MyKeyboardHandlerService.cs#L41

    }
    base.OnKeyDown(e);
}

VB.NET

how-to-handle-key-press-events-via-services-e1735/VB/KeyboardHandler/Form1.vb#L48

    End If
    MyBase.OnKeyDown(e)
End Sub

how-to-implement-the-next-previous-word-selection-commands-e2931/VB/Form1.vb#L62

    Case Else
        MyBase.OnKeyDown(e)
End Select

service-substitution-use-keyboard-and-mouse-services-to-implement-zooming-e677/VB/ServicesMouseZoom/ServiceHandler.vb#L73

    End If
    MyBase.OnKeyDown(e)
End Sub

how-to-handle-key-press-events-in-the-schedulercontrol-e2906/VB/DXScheduler_KeyHandling/MyKeyboardHandlerService.vb#L39

    End If
    MyBase.OnKeyDown(e)
End Sub

Implements

OnKeyDown(PortableKeyEventArgs)