@model dynamic
@{
    var tbodyid = (ViewData["tbodyid"] ??"").ToString();
    var searchmethod = (ViewData["searchmethod"] ?? "").ToString();
    var pageSize = (int)(ViewData["pagesize"] ?? 0);
    var isright = (int)(ViewData["right"] ?? 0);
    var style = (ViewData["style"] ?? "vertical-align: middle;").ToString();
}
<select onchange="javascript:rcchange(this)" class="form-control dev @(isright>0?"f-r":"")" data-tbodyid="@tbodyid" data-scmethod="@searchmethod" name="pagerowcount" style="@style">
@*    <option value="10" @(pageSize == 10 ? "selected" : "")>10개 출력</option>
    <option value="20" @(pageSize == 20 ? "selected" : "")>20개 출력</option>
    <option value="50" @(pageSize == 50 ? "selected" : "")>50개 출력</option>*@
    <option value="100" @(pageSize == 100 ? "selected" : "")>100개 출력</option>
    <option value="1000" @(pageSize == 1000 ? "selected" : "")>1000개 출력</option>
    <option value="5000" @(pageSize == 5000 ? "selected" : "")>5000개 출력</option>
    <option value="10000" @(pageSize == 10000 ? "selected" : "")>10000개 출력</option>
@*    <option value="1" @(pageSize == 1 ? "selected" : "")>1개 출력</option>*@
</select>