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Editorial Team
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Asked: 2026-05-12T20:31:35+00:00

I have a datalist inside a usercontrol that gets loaded into a page where

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I have a datalist inside a usercontrol that gets loaded into a page where users can customize a report based on some checkboxes.

One of the checkboxes, however, is “Hide Worklog” which should hide the worklog column from the result set because it can be quite long and interfere with the report.

If I do: 

datatable1.Columns.Remove("WorkLog");

the code throws an exception because:

<asp:Label ID="WorkLog" runat="server" Text='<%# Bind("WorkLog") %>'></asp:Label></td>

doesn’t exist.

Am I going about the usercontrol all wrong? This usercontrol should always be able to show the worklog, so I don’t think it’s bad to bind it in there, but at the same time I want to be able to hide it if the user wants.

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1 Answer

  1. Editorial Team

    Try removing the label control from your DataList instead of removing the column from the data source (i.e. the DataTable)

    DataList1.Controls.Remove(DataList1.FindControl("WorkLog"));

    You shouldn’t get an error if the data source has more columns than you’re displaying on the page, however, you will get an error, as you’ve discovered, if you’re trying to display a column that doesn’t exist in the data source.

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