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Editorial Team
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Asked: 2026-05-13T07:35:42+00:00

I built an empty website on VS 2010. Using the toolbox I put a

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I built an empty website on VS 2010.
Using the toolbox I put a DataGridView on my default.aspx.
Then I configured the sql query that fills it from the DataSource.
I wanted to see the ADO code that is done under the covers.
But all there is the default.aspx file, and the default.aspx.cs:

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e) {}    
}

this is the aspx:

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" 
        CellPadding="4" DataSourceID="SqlDataSource2" ForeColor="#333333" 
        GridLines="None" ondatabound="GridView1_DataBound">
        <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
        <Columns>
            <asp:BoundField DataField="Title" ...

the web.config:

<configuration>
 <connectionStrings... 
 <system.web>
  <compilation debug="true" targetFramework="4.0"/>
 </system.web>
 <system.webServer>
  <modules runAllManagedModulesForAllRequests="true"/>
 </system.webServer>
</configuration>

Where did the .designer.cs file gone?
Or maybe the aspx markup is all there is?
And if so how?
And where is the other partial class definition (if I delete the word ‘partial’ VS won’t compile and says that there is another partial class definition) ?

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1 Answer

  1. Editorial Team

    The other part of the class is generated from the markup (.aspx).

    If you want to see the code, a quick way is to first inject an error into the code generated by the markup, using something like <% error %>. After that, when you load the page it will report the error and give you a link you can click on to see the source code.

    However, from your example it looks like all the work is being done by the control, not the page itself.

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