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    copied!<p>What do yo mean by maintain ?. We have a similar setup in our application all over the place. We use embedded gridviews with no issues. Do you need some code to see how its done ? not sure what you are looking for..</p> <pre><code> &lt;asp:DataGrid ID="dgReportGrid" runat="server" CssClass="grid" Width="100%" OnItemCommand="ExpandDetails" PagerStyle-Visible="False" AllowPaging="True" font-name="Verdana" AutoGenerateColumns="False" PageSize="10" OnItemDataBound="dgReportGrid_onItemDataBound"&gt; &lt;HeaderStyle CssClass="gridHeader"&gt;&lt;/HeaderStyle&gt; &lt;AlternatingItemStyle CssClass="gridAltRow1"&gt;&lt;/AlternatingItemStyle&gt; &lt;ItemStyle CssClass="gridAltRow1"&gt;&lt;/ItemStyle&gt; &lt;Columns&gt; &lt;asp:TemplateColumn HeaderStyle-CssClass="dsLeftBorder"&gt; &lt;ItemStyle Width="10px"&gt;&lt;/ItemStyle&gt; &lt;ItemTemplate&gt; &lt;asp:ImageButton ID="imgBtnExpand" ImageUrl="../images/minus.gif" CommandName="Expand" runat="server" ToolTip="show details"&gt;&lt;/asp:ImageButton&gt; &lt;/ItemTemplate&gt; &lt;/asp:TemplateColumn&gt; &lt;asp:BoundColumn Visible="False" DataField="a_id" ReadOnly="True" ItemStyle-HorizontalAlign="center"&gt; &lt;/asp:BoundColumn&gt; &lt;asp:BoundColumn DataField="x1" ReadOnly="true" HeaderText="x1" ItemStyle-HorizontalAlign="center"&gt;&lt;/asp:BoundColumn&gt; &lt;asp:BoundColumn DataField="x2" ReadOnly="True" HeaderText="x2" ItemStyle-HorizontalAlign="center"&gt;&lt;/asp:BoundColumn&gt; &lt;asp:BoundColumn DataField="x3" ReadOnly="true" HeaderText="x3" ItemStyle-HorizontalAlign="center"&gt;&lt;/asp:BoundColumn&gt; &lt;asp:TemplateColumn&gt; &lt;ItemStyle Width="1px"&gt;&lt;/ItemStyle&gt; &lt;ItemTemplate&gt; &lt;asp:PlaceHolder ID="ExpandedContent" runat="server"&gt;&lt;/TD&gt; &lt;/TR&gt; &lt;tr&gt; &lt;td width="10"&gt; &lt;/td&gt; &lt;td colspan="10"&gt; &amp;nbsp;&lt;br&gt; &lt;asp:Label ID="lblNestedGridlbl" runat="server" CssClass="nestedGridLabel" Text='Details'&gt;&lt;/asp:Label&gt; &lt;asp:DataGrid ID="dgDetail" runat="server" Width="100%" font-name="Verdana" AutoGenerateColumns="False" OnItemCommand="ExpandDetails" OnItemDataBound="dgDetail_DataBind"&gt; &lt;HeaderStyle CssClass="nestedGridHeader1"&gt;&lt;/HeaderStyle&gt; &lt;ItemStyle CssClass="gridAltRow1"&gt;&lt;/ItemStyle&gt; &lt;Columns&gt; &lt;asp:TemplateColumn HeaderStyle-CssClass="dsLeftBorder"&gt; &lt;ItemStyle Width="10px"&gt;&lt;/ItemStyle&gt; &lt;ItemTemplate&gt; &lt;asp:ImageButton ID="Imagebutton1" ImageUrl="../images/minus.gif" CommandName="PExpand" runat="server" ToolTip="show details"&gt;&lt;/asp:ImageButton&gt; &lt;/ItemTemplate&gt; &lt;/asp:TemplateColumn&gt; &lt;asp:BoundColumn DataField="a1" Visible="False"&gt;&lt;/asp:BoundColumn&gt; &lt;asp:BoundColumn DataField="a2" Visible="False"&gt;&lt;/asp:BoundColumn&gt; &lt;asp:BoundColumn DataField="a3" HeaderText="Product Family" HeaderStyle-HorizontalAlign="Center" ItemStyle-HorizontalAlign="Center"&gt;&lt;/asp:BoundColumn&gt; &lt;asp:TemplateColumn&gt; &lt;ItemStyle Width="1px"&gt;&lt;/ItemStyle&gt; &lt;ItemTemplate&gt; &lt;asp:PlaceHolder ID="ExpandedContent1" runat="server"&gt;&lt;/TD&gt; &lt;/TR&gt; &lt;tr&gt; &lt;td width="10"&gt; &lt;/td&gt; &lt;td colspan="10"&gt; &lt;asp:DataGrid class="grid" ID="dgProdDetail" runat="server" Width="100%" font-name="Verdana" AutoGenerateColumns="False" OnItemDataBound="dgProdDetail_DataBind"&gt; &lt;HeaderStyle CssClass="nestedGridHeader2"&gt;&lt;/HeaderStyle&gt; &lt;AlternatingItemStyle CssClass="gridAltRow1"&gt;&lt;/AlternatingItemStyle&gt; &lt;ItemStyle CssClass="gridRow1"&gt;&lt;/ItemStyle&gt; &lt;Columns&gt; &lt;asp:BoundColumn DataField="c1" HeaderText="c1"&gt;&lt;/asp:BoundColumn&gt; &lt;asp:BoundColumn DataField="c2" HeaderText="c2" ItemStyle-HorizontalAlign="Center"&gt; &lt;/asp:BoundColumn&gt; &lt;asp:BoundColumn DataField="c3" HeaderText="c3" ItemStyle-HorizontalAlign="Center"&gt; &lt;/asp:BoundColumn&gt; &lt;/Columns&gt; &lt;/asp:DataGrid&gt; </code></pre>
 

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