Keyboard Support
Telerik RadRichTextEditor for WinForms supports shortcuts. There are default key-bindings defined for the most widely used operations, namely:
| Action | Hotkey |
|---|---|
| Copy | Ctrl+C |
| Paste | Ctrl+V |
| Cut | Ctrl+X |
| Delete | Delete |
| Undo | Ctrl+Z |
| Redo | Ctrl+Y |
| InsertLineBreak | Shift+Enter |
| InsertPageBreak | Ctrl+Enter |
| ToggleBold | Ctrl+B, Ctrl+Shift+B |
| ToggleItalic | Ctrl+I, Ctrl+Shift+I |
| ToggleSuperscript | Ctrl+'+' |
| ToggleSubscript | Ctrl+Shift+'+' |
| ToggleUnderline | Ctrl+U |
| ClearFormatting | Ctrl+Space |
| Copy Formatting | Ctrl+Shift+C |
| Paste Formatting | Ctrl+Shift+V |
| Cancel Format Painter | Esc |
| ChangeTextAlignment with parameter RadTextAlignment.Justify | Ctrl+J |
| ChangeTextAlignment with parameter RadTextAlignment.Right | Ctrl+R |
| ChangeTextAlignment with parameter RadTextAlignment.Left | Ctrl+L |
| ChangeTextAlignment with parameter RadTextAlignment.Center | Ctrl+E |
| SelectAll | Ctrl+A |
| MoveCaret with parameter MoveCaretDirections.Previous | Left Arrow |
| MoveCaret with parameter MoveCaretDirections.Next | Right Arrow |
| MoveCaret with parameter MoveCaretDirections.PreviousWord | Ctrl+Left Arrow |
| MoveCaret with parameter MoveCaretDirections.NextWord | Ctrl+Right Arrow |
| MoveCaret with parameter MoveCaretDirections.Up | Upper Arrow |
| MoveCaret with parameter MoveCaretDirections.Down | Down Arrow |
| MoveCaret with parameter MoveCaretDirections. ParagraphStart | Ctrl+Upper Arrow |
| MoveCaret with parameter MoveCaretDirections. ParagraphEnd | Ctrl+Down Arrow |
| MoveCaret with parameter MoveCaretDirections.Home | Home |
| MoveCaret with parameter MoveCaretDirections.DocumentStart | Ctrl+Home |
| MoveCaret with parameter MoveCaretDirections.End | End |
| MoveCaret with parameter MoveCaretDirections.DocumentEnd | Ctrl+End |
| MoveCaret with parameter MoveCaretDirections.PageUp | PageUp |
| MoveCaret with parameter MoveCaretDirections.PageDown | PageDown |
| ShowFindReplaceDialog | Ctrl+F |
| ShowFontPropertiesDialog | Ctrl+D |
| ShowInsertHyperlinkDialog | Ctrl+K |
Now, these key shortcuts can be overridden and customized to the liking of the user. This can be achieved by creating a custom RichTextEditorInputBehavior descendant:
public class MyInputBehavior : Telerik.WinForms.RichTextEditor.RichTextEditorInputBehavior
{
public MyInputBehavior(RadRichTextBox editor) : base(editor)
{
}
protected override void PerformCopyOperation(System.Windows.Forms.KeyEventArgs e)
{
base.PerformCutOperation(e);
}
}
Public Class MyInputBehavior
Inherits Telerik.WinForms.RichTextEditor.RichTextEditorInputBehavior
Public Sub New(ByVal editor As RadRichTextBox)
MyBase.New(editor)
End Sub
Protected Overrides Sub PerformCopyOperation(ByVal e As System.Windows.Forms.KeyEventArgs)
MyBase.PerformCutOperation(e)
End Sub
End Class
The default behavior can be changed like this:
radRichTextEditor1.InputHandler = new MyInputBehavior(radRichTextEditor1.RichTextBoxElement);
radRichTextEditor1.InputHandler = New MyInputBehavior(radRichTextEditor1.RichTextBoxElement)
Another way to customize the control behavior is to use the PreviewEditorKeyDown event. For example, pressing RightAlt causes Control and Alt to be sent as arguments to the PreviewKeyDown event. Thus, RightAlt+E triggers a formatting command for paragraph alignment instead of inputting the ę character. In that case, you can handle the PreviewEditorKeyDown event in the following way:
void RichTextBoxElement_PreviewEditorKeyDown(object sender, PreviewEditorKeyEventArgs e)
{
if ((Keyboard.IsKeyDown(Key.LeftShift) || Keyboard.IsKeyDown(Key.RightShift)))
{
e.SuppressDefaultAction = true;
}
}
Private Sub RichTextBoxElement_PreviewEditorKeyDown(ByVal sender As Object, ByVal e As PreviewEditorKeyEventArgs)
If (Keyboard.IsKeyDown(Key.LeftShift) OrElse Keyboard.IsKeyDown(Key.RightShift)) Then
e.SuppressDefaultAction = True
End If
End Sub