extjs 2.0 使用gridPanel加载数据特别慢
extjs 2.0 使用gridPanel加载数据特别慢，后台数据库（sql2008）一共才不到150条，绑定控件后加载时需要将尽2分钟，这是什么原因？网上找了好多的资料，都不行啊，数据绑定主要是通过store里的OnReadData="MyData_Refresh5"，然后调用 后台方法实现的
<ext:GridPanel ID="GridPanel4" runat="server" Title="<font style='font-size:13; font-weight:900; font-family: Arial,Tahoma, '微软雅黑';'>新蒜货源</font>"Ext?JS
Width="1240" Height="400" AutoHeight="true" AnchorHorizontal="100%" Cls="x-grid-custom">
<Store>
<ext:Store ID="Store8" runat="server" RemotePaging="false" OnReadData="MyData_Refresh5"
PageSize="100" >
<Proxy>
<ext:PageProxy />
</Proxy>
<Model>
<ext:Model ID="Model8" runat="server">
<Fields>
<ext:ModelField Name="SaleRecordID" />
<ext:ModelField Name="SerialNo" />
<ext:ModelField Name="LeftCount" />
<ext:ModelField Name="Price" />
<ext:ModelField Name="ProducingArea" />
<ext:ModelField Name="SizeID" />
<ext:ModelField Name="VillageID" />
<ext:ModelField Name="TownID" />
<ext:ModelField Name="Ifresale" />
<ext:ModelField Name="StatusID" />
<ext:ModelField Name="IsMildew" />
<ext:ModelField Name="IsNew" />
<ext:ModelField Name="Updatedatetime" />
<ext:ModelField Name="KindID1" />
<ext:ModelField Name="Rate60" />
<ext:ModelField Name="Rate50" />
<ext:ModelField Name="Rate55" />
<ext:ModelField Name="RateUnder50" />
<ext:ModelField Name="ProductRate" />
<ext:ModelField Name="ColorAndLustreID" />
<ext:ModelField Name="SurfaceID" />
<ext:ModelField Name="SaleRecordsDetailID1" />
<ext:ModelField Name="Deploydatetime" />
<ext:ModelField Name="Packageid1" />
<ext:ModelField Name="AccountType" />
<ext:ModelField Name="LowPrice" />
<ext:ModelField Name="TopPrice" />
<ext:ModelField Name="ShowPrice" />
<ext:ModelField Name="Amountofwater" />
<ext:ModelField Name="CreditID" />
<ext:ModelField Name="GermID" />
<ext:ModelField Name="BadCloveID" />
</Fields>
</ext:Model>
</Model>
</ext:Store>
</Store>
<ColumnModel ID="ColumnModel4" runat="server">
<Columns>
<%--<ext:RowNumbererColumn ID="RowNumbererColumn1" runat="server" Width="35" />--%>
<ext:Column ID="Column45" runat="server" Text="编号" DataIndex="SaleRecordID" Width="100"
Align="Center" />
<%-- <ext:Column ID="Column46" runat="server" Text="序号" Width="60" DataIndex="SerialNo"
Align="Center" Hidden="true">
</ext:Column>--%>
<ext:Column ID="Column32" runat="server" Text="县" Width="50" DataIndex="ProducingArea"
Align="Center">
</ext:Column>
<ext:Column ID="Column39" runat="server" Text="乡/镇" Width="50" DataIndex="TownID"
Align="Center">
</ext:Column>
<ext:Column ID="Column40" runat="server" Text="品种" Width="40" DataIndex="KindID1"
Align="Center">
</ext:Column>
<ext:Column ID="Column44" runat="server" Text="干湿度" DataIndex="Amountofwater" Width="65"
Align="Center">
</ext:Column>
<ext:Column ID="Column49" runat="server" Text="规格" Width="80" DataIndex="SizeID"
Align="Center">
</ext:Column>
<ext:Column ID="Column60" runat="server" Text="6.0以上(%)" Width="75" DataIndex="Rate60"
Align="Center">
</ext:Column>
<ext:Column ID="Column61" runat="server" Text="5.0以下(%)" Width="75" DataIndex="Rate50"
Align="Center">
</ext:Column>
<ext:Column ID="Column62" runat="server" Text="成品率" Width="45" DataIndex="ProductRate"
Align="Center">
</ext:Column>
<ext:Column ID="Column48" runat="server" Text="单价(元/斤)" Width="70" DataIndex="ShowPrice"
Align="Center">
</ext:Column>
<ext:Column ID="Column47" runat="server" Text="吨数" Width="40" DataIndex="LeftCount"
Align="Center">
</ext:Column>
<ext:Column ID="Column42" runat="server" Text="结算" DataIndex="AccountType" Width="40"
Align="Center">
</ext:Column>
<ext:Column ID="Column56" runat="server" Text="更新时间" DataIndex="Updatedatetime" Width="75"
Align="Center">
</ext:Column>
</Columns>
</ColumnModel>
<View>
<ext:GridView ID="GridView4" runat="server" LoadingText="正在努力加载数据中..." />
</View>
<Plugins>
<ext:CellEditing ID="CellEditing2" runat="server" />
</Plugins>
<BottomBar>
<ext:PagingToolbar ID="PagingToolbar4" runat="server" />
</BottomBar>
</ext:GridPanel>
</Items>
</ext:Panel>
