RadSyntaxEditor's Properties

Property	Description
SyntaxEditorElement	Gets the syntax editor element.
Document	Gets or sets the text document.
TextFormatDefinitions	Gets the text format definitions.
InputHandler	Gets or sets the component which is responsible for handling the input of RadSyntexEditor.
AllowScaling	Gets or sets a value indicating whether to allow scaling.
EditorFontSize	Gets or sets a value indicating the font size of the text editor.
CaretColor	Gets or sets the caret color.
CaretDisplayMode	Gets or sets the caret display mode.
CaretWidth	Gets or sets the caret width when the DisplayMode is set to Normal.
IsCaretVisible	Gets or sets a value indicating whether this instance is caret visible.
Dispatcher	Gets the dispatcher objcect.
Commands	Gets the commands available in the control.
ScaleFactor	Gets or sets the scale factor.
Palette	Gets or sets the palette of syntax elements' colors used for the RadSyntaxEditorElement instance.
TaggersRegistry	Gets the taggers registry.
UseShiftKeyInSelection	Gets or sets a value indicating whether using shift key in selection.
IsSelectionEnabled	Gets or sets a value indicating whether this instance is selection enabled.
ShowLineNumbers	Gets or sets a value indicating whether the line numbers are shown. (introduced in R1 2021 SP2)
ShouldTaggersProcessEntireLines	Gets or sets a value whether the entire line should be processed by the taggers.(introduced in R2 2021)

RadSyntaxEditorElement's Properties

Property	Description
EditorFontFamily	Gets or sets a value indicating the font family of the text editor.
EditorFontStyle	Gets or sets a value indicating the font style of the text editor.
EditorFontWeight	Gets or sets a value indicating the font weight of the text editor.
EditorFontStretch	Gets or sets a value indicating the font stretch of the text editor.
CaretPosition	Gets the caret position.
EditorPresenter	Gets the editor presenter.
FoldingManager	Gets the folding manager.
HorizontalScrollBar	Gets the horizontal scroll bar.
HorizontalScrollBarVisibility	Gets or sets the horizontal scroll bar visibility.
VerticalScrollBarVisibility	Gets or sets the vertical scroll bar visibility.
IsReadOnly	Gets or sets a value indicating whether the syntax editor is read only.
Margins	Gets the margins.
Selection	Gets the selection.

RadSyntaxEditor's Methods

Method	Description
Copy	Copies this instance.
GetPointFromPosition	Gets the point from position.
GetPositionFromPoint	Gets the position from point.
MoveCurrentLineToTop	Moves the current line to top.
PageDown	Pages down.
PageUp	Pages up.
SelectAll	Selects all.
UpdateSelection	Updates the selection.
ZoomIn	Zooms in.
ZoomOut	Zooms out.
ZoomTo	Zooms to particular zoom level.
GetWordToLeft	Gets the text within the current word which is to the left of the caret.
GetWordToRight	Gets the text within the current word which is to the right of the caret.
GetText	Gets the text between the specified start and end positions.
DeleteWordToRight	Deletes the word to right.
DeleteWordToLeft	Deletes the word to left.

As of R1 2021 RadSyntaxEditor offers a new method: GetPositionFromControlPoint. It expects a point relative to the control.

Selecting the word under the mouse on a single click

private void RadSyntaxEditor1_MouseDown(object sender, MouseEventArgs e)
{
    CaretPosition clickPosition = this.radSyntaxEditor1.GetPositionFromControlPoint(e.Location);

    CaretPosition start = new CaretPosition(clickPosition);
    start.MoveToCurrentWordStart();

    CaretPosition end = new CaretPosition(clickPosition);
    end.MoveToCurrentWordEnd();

    this.radSyntaxEditor1.SyntaxEditorElement.CaretPosition.MoveToPosition(end);
    this.radSyntaxEditor1.SyntaxEditorElement.Selection.Select(start, end);
}

    Private Sub RadSyntaxEditor1_MouseDown(ByVal sender As Object, ByVal e As MouseEventArgs)
        Dim clickPosition As CaretPosition = Me.RadSyntaxEditor1.GetPositionFromControlPoint(e.Location)
        Dim start As CaretPosition = New CaretPosition(clickPosition)
        start.MoveToCurrentWordStart()
        Dim [end] As CaretPosition = New CaretPosition(clickPosition)
        [end].MoveToCurrentWordEnd()
        Me.RadSyntaxEditor1.SyntaxEditorElement.CaretPosition.MoveToPosition([end])
        Me.RadSyntaxEditor1.SyntaxEditorElement.Selection.[Select](start, [end])
    End Sub

RadSyntaxEditor's Events

Method	Description
CommandError	Occurs when a command has been canceled due to an error.
CommandExecuted	Occurs when a command has been executed.
CommandExecuting	Occurs when a command is about to be executed.
DocumentChanged	Occurs when the current document has changed.
DocumentChanging	Occurs when the current document is about to change.
DocumentContentChanged	Occurs when the document's content has changed.
DocumentContentChanging	Occurs when the document's content is about to change.
IsReadOnlyChanged	Occurs when the IsReadOnly property of the control has changed.
LayoutPropertiesChanged	Occurs when one of the layout related properties has changed.
PreviewSyntaxEditorInput	Occurs when the control receives keyboard input.
PreviewSyntaxEditorKeyDown	Occurs before the KeyDown event when a key is pressed while focus is on this control
PreviewSyntaxEditorKeyUp	Occurs before the KeyUp event when a key is pressed while focus is on this control.
PreviewSyntaxEditorMouseLeftButtonDown	Occurs when the left mouse button is pressed while the mouse pointer is over the control.
PreviewSyntaxEditorMouseRightButtonDown	Occurs when the right mouse button is pressed while the mouse pointer is over the control.
ScaleFactorChanged	Occurs when the ScaleFactor of the control changes.
ViewportChanged	Occurs when the viewport changes. This can happen when the control is resized, it is scrolled, or if its ScaleFactor changes.
SelectionChanged	Occurs when the selection of the control changes.

See Also

• Getting Started