getJSON获取JSON文件加载下拉框及动态验证比输入项

<form action="" method="get"> ???????<div class="form-group"> ???????????<div class="col-sm-3"> ???????????????<label class="control-label">集团</label> ???????????</div> ???????????<div class="col-sm-9"> ???????????????<select id="groupType" name="offsetType" class="table "></select> ???????????</div> ???????</div> ???????<div class="formControls col-xs-2 col-sm-2"> ???????????<select name="shipment.startstation" id="startstation"></select> ???????</div> ???????<div><button id="button" type="submit" title="提交">提交</button></div> ???</form>

<script src="~/Scripts/jquery-1.10.2.min.js"></script><script type="text/javascript"> ???$.getJSON("/Scripts/Data_Json/JsonList.js", function (result) { ???????$("#groupType").html("<option value=‘-1‘>请选择</option>"); ???????$.each(result.employees, function (i, field) { ???????????var name = encodeURI(field.name, "utf-8"); ???????????var result = "<option value=‘" + field.id + "‘>" + field.name + "</option>"; ???????????$(‘#groupType‘).append(result); ???????}); ???????$("#startstation").html("<option value=‘-1‘>请选择</option>"); ???????$.each(result.goodscode, function (i, field) { ???????????var name = encodeURI(field.name, "utf-8"); ???????????var result = "<option value=‘" + field.id + "‘>" + field.name + "</option>"; ???????????$(‘#startstation‘).append(result); ???????}); ???????$("#button").click(function () ???????{ ???????????//$("#groupType").attr("data-options", "required:true");//设置属性为必输入项 ???????????var groupType = $("#groupType").val(); ???????????if (groupType <= 0) ???????????{ ???????????????alert("当单据为OMS时，货品类型必须输入,请选择"); ???????????????return false; ???????????} ???????}); ???});