How to Move the Current Row with Arrow Keys while RadGridView is in Edit Mode
Environment
| Product Version | Product | Author |
|---|---|---|
| 2023.2.718 | RadGridView for WinForms | Desislava Yordanova |
Description
When the editor in RadGridView is active, it is expected to handle the user's input. For example, when a spin editor is activated in a decimal column, pressing the up/down arrow keys increases/decreases the editor's value. If you want to skip handling the up/down arrows by the editor and move the current row in the respective direction, you can have a look at the following code snippet which result is illustrated below:
Solution
When the editor is initialized, we can handle the keyboard processing and execute custom logic when the up/down arrow keys are pressed. In addition, the default logic for increasing/decreasing the value in the spin editor should be restricted:
public RadForm1()
{
InitializeComponent();
this.radGridView1.CellEditorInitialized += RadGridView_CellEditorInitialized;
}
private void RadGridView_CellEditorInitialized(object sender, Telerik.WinControls.UI.GridViewCellEventArgs e)
{
var spinEditor = e.ActiveEditor as GridSpinEditor;
if (spinEditor != null)
{
var element = spinEditor.EditorElement as RadSpinEditorElement;
element.InterceptArrowKeys = false;
element.KeyDown -= element_KeyDown;
element.KeyDown += element_KeyDown;
}
}
private void element_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyData == Keys.Down)
this.radGridView1.GridNavigator.SelectNextRow(1);
else if (e.KeyData == Keys.Up)
this.radGridView1.GridNavigator.SelectPreviousRow(1);
}
Sub New()
InitializeComponent()
AddHandler Me.RadGridView1.CellEditorInitialized, AddressOf RadGridView_CellEditorInitialized
End Sub
Private Sub RadGridView_CellEditorInitialized(sender As Object, e As Telerik.WinControls.UI.GridViewCellEventArgs)
Dim spinEditor = TryCast(e.ActiveEditor, GridSpinEditor)
If spinEditor IsNot Nothing Then
Dim element = TryCast(spinEditor.EditorElement, RadSpinEditorElement)
element.InterceptArrowKeys = False
RemoveHandler element.KeyDown, AddressOf element_KeyDown
AddHandler element.KeyDown, AddressOf element_KeyDown
End If
End Sub
Private Sub element_KeyDown(sender As Object, e As KeyEventArgs)
If e.KeyData = Keys.Down Then
Me.RadGridView1.GridNavigator.SelectNextRow(1)
ElseIf e.KeyData = Keys.Up Then
Me.RadGridView1.GridNavigator.SelectPreviousRow(1)
End If
End Sub