How do I access the HTMLTableRowCollection ?

How do I access the HTMLTableRowCollection when in the code behind of an ASP page ?

I have the page as :

<TABLE id="tbl1" cellSpacing="0" cellPadding="0" align="center" border="0">
    <TR id="tr1" align="left">
        <TD align="left">
            <asp:TextBox id="Textbox1" tabIndex="24" runat="server" Columns="32" MaxLength="20"></asp:TextBox>
        </TD>
    </TR>
</TABLE>

In the code :

protected System.Web.UI.HtmlControls.HtmlTableRow tr1;

this.tr1.Visible = true;

But the tr1 object is not set to an instance of the object.

I can see that tr1 is undefined but how to a set it to the instance on the page ?

Thanks.
Paul__MAsked:
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tstoeckigtCommented:
You probably have to set them as 'runat=server' to view them in your CodeBehind-Class.
The aspx derives the codebehind-class not otherwise so you have to declare it this way and your IDE will declare it also in the codebehind-class (if not you can do it yourself).
With an tag declared as runat=server this object is recognized as derived from the underlying codebehind-class (or some parent of it).

Ciao
Timo
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Paul__MAuthor Commented:
Just realised that myself - thanks.
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