Ajax提交Form表单

<form id="formAddHandlingFee" name="formAddHandlingFee" enctype="multipart/form-data" onsubmit="AddHandlingFeeToRefund()">
<table id="AddHandlingFee" class="Wfill">
<tr>
<td>
<asp:Literal ID="UI_Amount" runat="server" Text="处理费用" meta:resourcekey="HandlingFeeAmount" />
</td>
<td>
<input type="text" id="txtHandlingFeeAmount" name="txtHandlingFeeAmount"  class="{required:true,number:true}" maxlength="12" />
</td>
</tr>
<tr>
<td>
<asp:Literal ID="UI_HandlingFeeType" runat="server" Text="费用类型" meta:resourcekey="HandlingFeeHandlingFeeType" />
</td>
<td>
<crmweb:HtmlSelectControl ID="HandlingFeeType" EnumTypeName="DX.OMS.Model.Common.HandlingFeeType,DX.OMS.Model.Common" EmptyValue="" EmptyText="Select" runat="server" class="text {required:true}"/>
</td>
</tr>
<tr>
<td>
<asp:Literal ID="UI_Notes" runat="server" Text="备注" meta:resourcekey="HandlingFeeNotes" />
</td>
<td>
<textarea id="txtNotes" name="txtNotes" class="text {required:true}" cols="22" rows="2" maxlength="100"></textarea>
</td>
</tr>

<tr>
<td>
</td>
<td>
<input id="Submit1" type="submit" value="添加处理费"  />
<asp:Button ID="Button1"  runat="server" Text="添加处理费" OnClientClick="javascript:AddHandlingFeeToRefund()" />
</td>

</tr>
</table>
</form>

function AddHandlingFeeToRefund()
{
var AjaxURL= "../OrderManagement/AjaxModifyOrderService.aspx";
alert($('#formAddHandlingFee').serialize());
$.ajax({
type: "POST",
dataType: "html",
url: AjaxURL + '?Action=' + 'SubmitHandlingFee' + '&OrderNumber=' + $.trim($("#<%=this.txtOrderNumber.ClientID %>").val()),
data: $('#formAddHandlingFee').serialize(),
success: function (result) {
var strresult=result;
alert(strresult);
//加载最大可退金额
$("#spanMaxAmount").html(strresult);
},
error: function(data) {
alert("error:"+data.responseText);
}
});
}

//ajax提交form表单的方式
$('#formAddHandlingFee').submit(function() {
var AjaxURL= "../OrderManagement/AjaxModifyOrderService.aspx";
alert($('#formAddHandlingFee').serialize());
$.ajax({
type: "POST",
dataType: "html",
url: AjaxURL + '?Action=' + 'SubmitHandlingFee' + '&OrderNumber=' + $.trim($("#<%=this.txtOrderNumber.ClientID %>").val()),
data: $('#formAddHandlingFee').serialize(),
success: function (data) {
var strresult=data;
alert(strresult);
//加载最大可退金额
$("#spanMaxAmount").html(strresult);
},
error: function(data) {
alert("error:"+data.responseText);
}
});
}
);