if (disabled == true || data.writable == false) {
        content += "<select name=\"" + Encode.forHtml(data.id) + "\" class=\"form-control\" disabled=\"true\">";
        for (var i = 0; i < data.enumValues.length; i++) {
            var selected='';
            if (data.value == data.enumValues[i].name) {
             selected = 'selected';
            }
            content += "<option value=\"" + Encode.forHtml(data.enumValues[i].id) + "\" "+selected +">" + Encode.forHtml(data.enumValues[i].name) + "</option>"
        }
    } else {
         if(data.required == true) {
             content += "<select name=\"" + Encode.forHtml(data.id) + "\" class=\"form-control\" required>";
             for (var i = 0; i < data.enumValues.length; i++) {
                var selected='';
                if (data.value == data.enumValues[i].name) {
                 selected = 'selected';
                }
                content += "<option value=\"" + Encode.forHtml(data.enumValues[i].id) + "\" "+selected +">" + Encode.forHtml(data.enumValues[i].name) + "</option>"
             }
         }
         else {
              content += "<select name=\"" + Encode.forHtml(data.id) + "\" class=\"form-control\">";
              for (var i = 0; i < data.enumValues.length; i++) {
                var selected='';
                if (data.value == data.enumValues[i].name) {
                 selected = 'selected';
                }
                content += "<option value=\"" + Encode.forHtml(data.enumValues[i].id) + "\" "+selected +">" + Encode.forHtml(data.enumValues[i].name) + "</option>"
              }
         }