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ASP.net 3.5 ContentPlaceHolder in <asp:Table in Master Page

I'm using ASP.net 3.5. I created a MasterPage with a Title bar at the top of the page (form) in an <asp:TableCell and then place a ContentPlaceHolder in the TableCell. When I do this, I cannot drop a SQLDataSource on the Content Page or even see the ContentPlaceHolder in design view from the content page.

When I move the ContentPlaceHolder out of the Table, it works fine.

Is this correct, and if so, any recommendations for laying out ContentPlaceHolders on the MasterPage. I assume the answer is Style sheets. Please confirm if they work in this situation.

Ravi Vaddadi

did you set the runat="server" for <asp:table>
example:
<asp:Table runat="server">
<asp:TableRow>
<asp:TableCell>
<asp:ContentPlaceHolder ID="MainContent" runat="server"/>
</asp:TableCell>
</asp:TableRow>
</asp:Table>

The SqlDataSource is to be dragged on to master page design

deepPowdah

ASKER

Yes I did have runat="server" on the table.

I'm a little confused. I will use the MasterPage for every Page in myApplication. I will have maybe 20 SQLDataSources. Should I drag all of them to the one MasterPage. It would appear to me that would create a lot of overhead on the Master Page. So if I opened a content page with no data access, I would still have those 20 DataSources to Load.

Do I understand that correctly?

ASKER CERTIFIED SOLUTION

Ravi Vaddadi

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ASP.net 3.5 ContentPlaceHolder in &lt;asp:Table in Master Page

ASP.net 3.5 ContentPlaceHolder in <asp:Table in Master Page