DevExpress ASPxSplitter ClientSideEvents-PaneExpanded 时间用法

在webform中的devexpress aspxsplitter中套用了jquery-easyui的 tabs id=tt
在aspxsplitter调整大小等操作时，我们需要用代码调整tab的大小随splitter变化，使用ClientSideEvents-PaneExpanded等事件，如下：
  <dx:ASPxSplitter ID="ASPxSplitter1" runat="server"   Width="100%" Height="100%" ClientSideEvents-PaneExpanded="function(s, e) { $('#tt').resize(); } "  ClientSideEvents-PaneCollapsed="function(s, e) { $('#tt').resize(); } " >

            <Styles>

                   <SeparatorButton

                    Border-BorderColor="Black"

                    BorderBottom-BorderWidth="2"

                    Border-BorderStyle="Solid"

                    BorderTop-BorderWidth="1"

                    BorderLeft-BorderWidth="1" BorderRight-BorderWidth="1"

                    >

                    <Border BorderColor="Black" BorderStyle="Solid" BorderWidth="0"></Border>

                    <BorderBottom BorderWidth="2px"></BorderBottom>

                </SeparatorButton>

            </Styles>

            <Panes>

                <dx:SplitterPane Size="16%"  ShowCollapseBackwardButton="True" >

                <PaneStyle>

                <Paddings Padding="2px"></Paddings>

                <Border BorderStyle="None"></Border>

                </PaneStyle>

                <ContentCollection>

                        <dx:SplitterContentControl ID="SplitterContentControl1" runat="server">

                           <dx:aspxnavbar width="100%" datasourceid="XmlDataSource1" enableviewstate="False" font-size="9pt"

                            id="ASPxNavBar1" runat="server" autocollapse="True" encodehtml="False" allowselectitem="True"

                            GroupSpacing="0px"

                            OnGroupDataBound="ASPxNavBar1_GroupDataBound" OnItemDataBound="ASPxNavBar1_ItemDataBound" Theme="Aqua"

                             ItemLinkMode="ContentBounds"

                               >

                            <Paddings Padding="0px"></Paddings>

                            <GroupHeaderStyle HorizontalAlign="Left" />

                            <ItemStyle HorizontalAlign="Left"   />

                            <ClientSideEvents ItemClick="function(s, e) { SelectedItemChanged(e); }" />

                            <GroupDataFields TextField="TextField" NameField="NameField" />

                            <ItemDataFields ImageUrlField="ImageUrlField" NameField="NameField"  TextField="TextField"  ToolTipField="NavigateUrlField"  />

                            </dx:aspxnavbar>

                            <asp:XmlDataSource ID="XmlDataSource1" runat="server" DataFile="~/App_Data/navbardatasource - 复制.xml" XPath="/menu/*"></asp:XmlDataSource>

                        </dx:SplitterContentControl>

                    </ContentCollection>

                </dx:SplitterPane>

                <dx:SplitterPane>

                <PaneStyle>

                <Paddings Padding="2px"></Paddings>

                <Border BorderStyle="None"></Border>

                </PaneStyle>

                            <ContentCollection>

                                <dx:SplitterContentControl ID="SplitterContentControl2" runat="server">

                                    <div style="height:10px;">

                                        <dx:ASPxLabel runat="server" id="lblItems" ClientInstanceName="lblItems" ForeColor="Red"> </dx:ASPxLabel>

                                    </div>

                                    <div id="tt" class="easyui-tabs" data-options="tools:'#tab-tools'" style="width:100%;height:100%">

                                    </div>

                                    <asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">

                                    </asp:ContentPlaceHolder>

                                </dx:SplitterContentControl>

                            </ContentCollection>

                </dx:SplitterPane>

            </Panes>

        </dx:ASPxSplitter>