View ListBoxFor healper data from Grid in MVC

@Html.ListBoxFor(model => model.SelectedNames, new MultiSelectList("",Model.SelectedNames), new { Size = 20, style = "width:190%;" })

public ShiftNameViewModel ViewPatternById(int inPtnId)

{

try

{

if (inPtnId > 0)

{

tblMstPattern_PTN PatternDetail = db.tblMstPattern_PTN.Find(inPtnId);

tblTxnPatternData_PTD_T txnPatternDetail = db.tblTxnPatternData_PTD_T.Find(inPtnId);

var patternValue = new ShiftNameViewModel()

{

inPtnId = PatternDetail.inPtnId,

vcPtnCode = PatternDetail.vcPtnCode,

vcPtnName = PatternDetail.vcPtnName,

SelectedNames = PatternDetail.vcPtnData.Split(new char[] { ',' }).ToList()

};

return patternValue;

}

}

catch (Exception ex) { ex.Message.ToString(); }

return null;

}

public IEnumerable Names { get; set; }

public IEnumerable SelectedNames { get; set; }