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VitNX3 Documentation

# VitNX_ListView.OnKeyDown Method

Namespace: VitNX.UI.ControlsV1.Controls
Assembly: VitNX3 (in VitNX3.dll)
Raises the KeyDown event.
VB
C#
F#
C++
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    protected override void OnKeyDown(
       KeyEventArgs e
    )

    This language is not supported or no code example is available.

#### Parameters

e
  KeyEventArgs

A KeyEventArgs that contains the event data.

Source code
VB
C#
F#
C++
JScript
Copy

    protected override void OnKeyDown(KeyEventArgs e)
     {
         base.OnKeyDown(e);

         if (Items.Count == 0)
             return;

         if (e.KeyCode != Keys.Down && e.KeyCode != Keys.Up)
             return;

         if (MultiSelect && ModifierKeys == Keys.Shift)
         {
             if (e.KeyCode == Keys.Up)
             {
                 if (_anchoredItemEnd - 1 >= 0)
                 {
                     SelectAnchoredRange(_anchoredItemEnd - 1);
                     EnsureVisible();
                 }
             }
             else if (e.KeyCode == Keys.Down)
             {
                 if (_anchoredItemEnd + 1 <= Items.Count - 1)
                 {
                     SelectAnchoredRange(_anchoredItemEnd + 1);
                 }
             }
         }
         else
         {
             if (e.KeyCode == Keys.Up)
             {
                 if (_anchoredItemEnd - 1 >= 0)
                     SelectItem(_anchoredItemEnd - 1);
             }
             else if (e.KeyCode == Keys.Down)
             {
                 if (_anchoredItemEnd + 1 <= Items.Count - 1)
                     SelectItem(_anchoredItemEnd + 1);
             }
         }

         EnsureVisible();
     }

    This language is not supported or no code example is available.

Applies to

#### .NET Framework

Supported in: 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8

#### .NET Core

Supported in: 5.0+, 6.0+
See Also
VitNX_ListView Class
VitNX.UI.ControlsV1.Controls Namespace