C# - .NET Hiding A <asp:Panel>/<th>/<tr>/<td> Inside A ListView?

Mar 2, 2011

<asp:ListView ID="ListView1" runat="server" ItemPlaceholderID="itemHolder"
OnItemCommand="listViewCmd" OnItemDeleting="OnItemDeleting"
OnItemEditing="OnItemEditing">[code]....

I got this source code for my aspx Web Form. I'm trying to hide the column for the supplier name. I've already tried many ways like:

ListView1.FindControl("pnlNameHead").Visible = false
Panel pnlName = (Panel)ListView.FindControl("pnlName");
pnlName.Visible = false;

but I always get "Object reference not set to an instance of an object".

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