asp.net（c#）中如何在前端用js写条件查询，且不用调用存储过程

前端页面（源）：

<dx:ASPxButton ID="ASPxButton_Select" runat="server" Text="查询" AutoPostBack="false">
<ClientSideEvents Click="bt_select" />
</dx:ASPxButton>

js部分：

function bt_select() {

//alert(cb_goodstype.GetValue());

updateGrid();

};

function updateGrid() {

var filterCondition = " 1=1 ";

//业务员

if (cb_buyuser.GetSelectedIndex() != -1)

filterCondition += " and ([sureuser] = ‘" + cb_buyuser.GetValue() + "‘) ";

//供应商名称

if (cb_supplers.GetSelectedIndex() != -1)

filterCondition += " and ([peoid]= ‘" + cb_supplers.GetValue() + "‘) ";

//是否审核

if (cb_audflag.GetSelectedIndex() != -1)

filterCondition += " and ([AUDFLAG] = ‘" + cb_audflag.GetValue() + "‘) ";

// alert(filterCondition);

//是否付款

if (cb_iscollflag.GetSelectedIndex() != -1)

filterCondition += " and ([ISCOLLFLAG] = ‘" + cb_iscollflag.GetValue() + "‘) ";

//制订日期

var myDate = new Date();

var theDate = myDate.toLocaleDateString();  //获取今天的日期

//获取控件选择的日期并进行转换

var s = ASPxDateEdit1.GetValue();

var y = new Date(s).getFullYear();

var m = new Date(s).getMonth() + 1;

// m = m < 10 ? (‘0‘ + m) : m;

var d = new Date(s).getDate();

// d = d < 10 ? (‘0‘ + d) : d;

var h = new Date(s).getHours();

var minute = new Date(s).getMinutes();

// minute = minute < 10 ? (‘0‘ + minute) : minute;

var dt = y + ‘/‘ + m + ‘/‘ + d + ‘ ‘ + h + ‘:‘ + minute;

if (ASPxDateEdit1.GetValue())

//filterCondition += " and [PAYDATE] >=‘" + dt + "‘ and [PAYDATE]<=‘" + theDate + "‘";

filterCondition += " and [PAYDATE] >= # " + dt + "# and [PAYDATE]<= #" + theDate + "#";

//alert(filterCondition);

ASPxGridView1.ApplyFilter(filterCondition);  //采购商品

ASPxGridView2.ApplyFilter(filterCondition); //采购服务及费用

};

注：以上查询只适用于ASPxGridView中的数据条件查询，其他则不知。