We are having issues while clicking using mouse at the text end of webhtmleditor control, especially when control is loaded with huge html data.

I have tried using javascript to set cursor position to text end on webhtmleditor focusin event but it alwasy gives me error at the following line [text.createTextRange(); It says undefined], but if i use this with normal textbox it works fine.

I tried different properties of text range, nothing seems to work with this control. Please suggest if u have any better solution

function SetCursorToTextEnd()
    {   
        var editor = iged_getById('<%=panelTo.ClientID%>');
        var text = editor._ie ? editor._elem : editor._doc().body;
       
        //alert(text.innerText);
        if (text != null && text.innerText.length > 0)
        {
            //if (text.createTextRange)
            //{
                var FieldRange = text.createTextRange();
                FieldRange.moveStart('character', text.innerText.length);
                //FieldRange.moveEnd('character', text.innerText.length);
                FieldRange.collapse();
                FieldRange.select();
            //}
        }       
    }

We are populating SPAN Html controls inside webhtmleditor.

example: webHtmlEditor1.Text = "<span id='I_1' title='Select to Delete.' contentEditable='false' unselectable='true' style='color:#00589F'>Dummy 1</span>;"; etc...