vsx - Visual Studio own collapsed outline will be expanded -

my problem visual studio (vs2013) opens created , collapsed outline. goal want achieve automatically close first comment in source code file in window activate event. background have big fileheadercomments (visual source safe checkin history) in our source files.

i wrote extension creates outline block on first comment in file collapse it. works fine files open.

but if file opened newly (fileopen/documentopen) outline expanded after few seconds. think @ time, when automatic outlining of visual studio finished?!

also if execute command edit.stopautomaticoutling before outlining. after 2 3 seconds outline expanded.

here code outlining:

// outlining stoppen 
try 
{ 
    _dte.executecommand("edit.stopoutlining"); 
} 
catch (exception) 
{ 
} 
 
// oberflächenänderungen abschalten 
_dte.suppressui = true; 
 
textselection ts = _dte.activedocument.selection textselection; 
if (ts != null) 
{ 
    // alte sektion merken 
    textpoint oldanchor = ts.anchorpoint.createeditpoint(); 
    textpoint oldactive = ts.activepoint.createeditpoint(); 
 
    // kommentare und leerzeilen zusammenfassen 
    editpoint edit_point = ts.activepoint.createeditpoint(); 
    edit_point.startofdocument(); 
 
    bool bwascomment = true; 
    bool binblock = false; 
    string line = ""; 
    while (bwascomment && !edit_point.atendofdocument) 
    { 
        line = edit_point.getlines(edit_point.line, edit_point.line + 1); 
        if (!binblock) 
        { 
            if (line.trim().startswith("/")) 
            { 
                binblock = true; 
                bwascomment = true; 
            } 
            else if (line.trim().startswith("//")) 
            { 
                bwascomment = true; 
            } 
            else if (line.trim() == "") 
            { 
                bwascomment = true; 
            } 
            else 
            { 
                // anderes 
                bwascomment = false; 
            } 
        } 
        else 
        { 
            if (line.trim().endswith("/")) 
            { 
                binblock = false; 
            } 
            bwascomment = true; 
        } 
 
        if (!bwascomment) 
        { 
            if (!edit_point.atstartofdocument) 
            { 
                edit_point.lineup(); 
            } 
        } 
        else 
        { 
            // weiter 
            edit_point.linedown(); 
        } 
    } 
 
    // letze leerzeilen wieder hoch 
    if (!bwascomment) 
    { 
        line = edit_point.getlines(edit_point.line, edit_point.line + 1); 
        while (!edit_point.atstartofdocument && line.trim() == "") 
        { 
            edit_point.lineup(); 
            line = edit_point.getlines(edit_point.line, edit_point.line + 1); 
        } 
 
        edit_point.endofline(); 
    } 
 
    // outline erstellen und zuklappen 
    ts.movetoabsoluteoffset(1); 
    ts.swapanchor(); 
    ts.movetoabsoluteoffset(edit_point.absolutecharoffset, true); 
    ts.outlinesection(); 
    //ts.collapse(); // outlinesection() klappt schon zu 
 
    // cursor wieder umsetzen 
    if (oldanchor.absolutecharoffset < edit_point.absolutecharoffset) 
    { 
        // alte position war im kommentar -> direkt hinter neue region 
        ts.movetoabsoluteoffset(edit_point.absolutecharoffset); // set active point 
        ts.swapanchor(); //set anchor active point 
        ts.movetoabsoluteoffset(edit_point.absolutecharoffset, true); 
    } 
    else 
    { 
        // alte position 
        ts.movetoabsoluteoffset(oldanchor.absolutecharoffset); // set active point 
        ts.swapanchor(); //set anchor active point 
        ts.movetoabsoluteoffset(oldactive.absolutecharoffset, true); 
    } 
 
    _dte.suppressui = false; 
}