Solved

Setting HTMLTableRow Visible Property

Posted on 2009-04-15
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1,086 Views
Last Modified: 2012-05-06
I am having a problem setting the Visible property of my HTMLTableRow. No matter what I do, it is always false. The following returns true...but it won't stay true setting to the visible property.

Convert.ToBoolean(PortalMngr.AppValue("RMISMitStepUsesBudgeted"))

I am using ASP.NET and C#. I have Visual Studio 2005.
<TR id="trIsBudgeted" runat="server"> 
	<TD>Cost (U.S. $)</TD>
	<TD>
	<TABLE id="Table13" cellSpacing="0" cellPadding="0" border="0">
		<TR>
		<TD width="70"><asp:textbox id="cost" runat="server" Width="65px"></asp:textbox></TD>
		<TD><asp:checkbox id="isBudgeted" runat="server" Text="This step has been factored in the applicable budget."></asp:checkbox></TD>
</TR>
	</TABLE>
	</TD>
	</TR>
 
In my code behind:
trIsBudgeted.Visible = Convert.ToBoolean(PortalMngr.AppValue("RMISMitStepUsesBudgeted"));

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Question by:lmred
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3 Comments
 
LVL 6

Expert Comment

by:ViceroyFizzlebottom
ID: 24149985
I believe you'll need to set the style such as:

trIsBudgeted.Attributes.Add("style", "visibility:hidden");
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Author Comment

by:lmred
ID: 24150252
ViceroyFizzlebottom,

That did not work.
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LVL 6

Accepted Solution

by:
ViceroyFizzlebottom earned 100 total points
ID: 24152245
I would look at the conversion you're doing. I made a mock-up version of what you're attempting there, and when I toggle the visibility, everything works just fine for me. The only variable in this whole thing is the conversion you are trying. Just for testing purposes, have you attempted for force a 'true' or 'false'?

Note: Refer to my test code below. Both methods are actually working for me, i.e., setting the visibility explicitly (as opposed to letting the Convert method set it) and applying a style attribute.

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <table>
        <tr>
            <td>
                <TR id="trIsBudgeted" runat="server"> 
                    <TD>Cost (U.S. $)</TD>
                    <TD>
                        <TABLE id="Table13" cellSpacing="0" cellPadding="0" border="0">
                            <TR>
                                <TD width="70">
                                    <asp:textbox id="cost" runat="server" Width="65px"></asp:textbox>
                                </TD>
                                <TD>
                                    <asp:checkbox id="isBudgeted" runat="server" Text="This step has been factored in the applicable budget."></asp:checkbox>
                                </TD>
                            </TR>
                        </TABLE>
                    </TD>
                </TR>
            </td>
        </tr>
    </table>
    </div>
    <div>
        <asp:Button runat="server" ID="btnHideRow" Text="Hide Row" OnClick="Click_Me"/>
    </div>
    </form>
</body>
</html>
 
/**************** Code Behind **************************/
protected void Click_Me(object sender, EventArgs e)
        {
            // This is working for me
            trIsBudgeted.Visible = !(trIsBudgeted.Visible);
            // This also works for me
            //trIsBudgeted.Attributes.Add("style", "visibility:hidden"); 
        }

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