ASPxGridView自适应高度设置

页面大小改变，ASPxGridview 高度自动适应，如何操作呢?
废话不多说，直接上代码。
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register Assembly="DevExpress.Web.ASPxGridView.v9.3, Version=9.3.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a"
    Namespace="DevExpress.Web.ASPxGridView" TagPrefix="dx" %>
<%@ Register Assembly="DevExpress.Web.ASPxEditors.v9.3, Version=9.3.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a"
    Namespace="DevExpress.Web.ASPxEditors" TagPrefix="dx" %>
<%@ Register Assembly="DevExpress.Web.v9.3, Version=9.3.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a"
    Namespace="DevExpress.Web.ASPxGlobalEvents" TagPrefix="dx" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title></title>
    <style type="text/css">
        body, html
        {
            padding: 0;
            margin: 0;
        }
    </style>
    <script type="text/javascript">
        function OnInit(s, e) {
            AdjustSize();
        }
        function OnEndCallback(s, e) {
            AdjustSize();
        }
        function OnControlsInitialized(s, e) {
            ASPxClientUtils.AttachEventToElement(window, "resize", function (evt) {
                AdjustSize();
            });
        }
        function AdjustSize() {
            var height = Math.max(0, document.documentElement.clientHeight);
            grid.SetHeight(height);
        }
    </script>
</head>
<body style="overflow: hidden">
    <form id="form1" runat="server">
    <dx:ASPxGridView runat="server" ID="gridView" ClientInstanceName="grid" AutoGenerateColumns="true"
        Width="100%" DataSourceID="ds" KeyFieldName="OrderID">
        <SettingsPager PageSize="50" />
        <Settings ShowVerticalScrollBar="true" VerticalScrollableHeight="0" />
        <ClientSideEvents Init="OnInit" EndCallback="OnEndCallback" />
    </dx:ASPxGridView>
   
    </form>
</body>
</html>