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How do I convert offset values into text range in the EditControl ?


In other words, this article explains how to get the associated CoordinatePoint values from text offset values. You would have to convert offset values into VirtualPoints and then VirtualPoints to ParsePoints before converting them to CoordinatePoints. Please refer to the code snippets below that illustrate this.


// Starting offset converted to virtual point

Point startVirtualPoint = this.editControl1.ConvertOffsetToVirtualPosition(startOffsetValue);

// Ending offset converted to virtual point

Point endVirtualPoint = this.editControl1.ConvertOffsetToVirtualPosition(endOffsetValue);

// Converting the VirtualPoints to ParsePoints

ParsePoint startParsePoint = new ParsePoint(startVirtualPoint.Y, startVirtualPoint.X, 0);

ParsePoint endParsePoint = new ParsePoint(endVirtualPoint.Y, endVirtualPoint.X, 0);

// Creating the associated CoordinatePoints that indicate the text range

CoordinatePoint startCoordinatePoint = new CoordinatePoint(this.editControl1.Parser as ILexemParser, startParsePoint, startVirtualPoint.Y, startVirtualPoint.X, true);

CoordinatePoint endCoordinatePoint = new CoordinatePoint(this.editControl1.Parser as ILexemParser, endParsePoint, endVirtualPoint.Y, endVirtualPoint.X, true);


' Starting offset converted to virtual point

Dim startVirtualPoint As Point = Me.editControl1.ConvertOffsetToVirtualPosition(startOffsetValue)

' Ending offset converted to virtual point

Dim endVirtualPoint As Point = Me.editControl1.ConvertOffsetToVirtualPosition(endOffsetValue)

' Converting the VirtualPoints to ParsePoints

Dim startParsePoint As New ParsePoint(startVirtualPoint.Y, startVirtualPoint.X, 0)

Dim endParsePoint As New ParsePoint(endVirtualPoint.Y, endVirtualPoint.X, 0)

' Creating the associated CoordinatePoints that indicate the text range

Dim startCoordinatePoint As New CoordinatePoint(CType(Me.editControl1.Parser, ILexemParser), startParsePoint, startVirtualPoint.Y, startVirtualPoint.X, True)

Dim endCoordinatePoint As New CoordinatePoint(CType(Me.editControl1.Parser, ILexemParser), endParsePoint, endVirtualPoint.Y, endVirtualPoint.X, True)

Article ID: Published Date: Last Revised Date: Platform: Control:
320 04/30/2011 07/10/2014 WinForms EditControl
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