VS 2005 Dynamic Load Of User Controls

Jan 31, 2011

I have an existing application of 20 equal user controls. Each user control contains a complex calculation. I have 2 lines visible as a start and when activating line 2 then line 3 becomes visible, when line 3 is activated line 4 is visible and so on. However this results in a very slow application! So instead I would like to dynamically load the user controls one by one.
So my question is: How do I load the user controls to the website by raising an event?
My existing code in html is:

Code:

<uc1:HeatSimpleLine ID="HeatSimpleLine1" runat="server" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine2" runat="server" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine3" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine4" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine5" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine6" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine7" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine8" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine9" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine10" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<!-- 11 til 20 -->
<uc1:HeatSimpleLine ID="HeatSimpleLine11" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine12" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine13" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine14" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine15" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine16" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine17" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine18" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine19" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine20" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine21" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine22" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine23" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine24" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />
<uc1:HeatSimpleLine ID="HeatSimpleLine25" runat="server" Visible="false" OnClickUserControl="HeatSimpleLine1_ClickuserControl" />

instead I would only have the first to user controls visible and loaded and the loading the user controls as I need them for improving the performance of the application and thereby I will not be limited by only 20 user controls in the application. add example codes

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