Master Page makes IFrame dissapear/possible bug?

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Master Page makes IFrame dissapear/possible bug?

Last post 11-30-2005 9:17 AM by Andy Sutorius @ work. 5 replies.

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Master Page makes IFrame dissapear/possible bug?

11-22-2005, 8:48 AM

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145 point Member
Andy Sutorius @ work
Member since 11-22-2005, 8:43 AM
Charlotte, NC
Posts 34

If you build a master page and then a content page linking it to the master page and inside the content page create an IFrame (no runat) and set the height and width to a % (not pixels) then view the Master page, the IFrame dissapears. Can anyone reproduce this and validate my finding?

Re: Master Page makes IFrame dissapear/possible bug?

11-22-2005, 10:59 AM

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2,210 point Contributor
jdixon
Member since 06-24-2002, 8:41 AM
Redmond
Posts 438

I did try this and cannot repro. When you say 'view the Master page, the IFrame dissapears' is this at designtime?

Default.aspx

<%@ Page Language="C#" MasterPageFile="~/MasterPage.master"%>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<iframe id="test" src="foo.htm" height="30%" width="30%" />
</asp:Content>

Master:

<%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPage.master.cs" Inherits="MasterPage" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:contentplaceholder id="ContentPlaceHolder1" runat="server">
</asp:contentplaceholder>
</div>
</form>
</body>
</html>

Foo.htm
<html>
<body>
test
</body>
</html>

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Re: Master Page makes IFrame dissapear/possible bug?

11-22-2005, 1:28 PM

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145 point Member
Andy Sutorius @ work
Member since 11-22-2005, 8:43 AM
Charlotte, NC
Posts 34

>>is this at designtime?

No this was at runtime. I adjusted my code and found that when I place table tag around the content place holder in the master the IFrame in the content page dissapears. Can you try to repro?

</asp:contentplaceholder></td></tr></table>

Re: Master Page makes IFrame dissapear/possible bug?

11-22-2005, 3:43 PM

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2,210 point Contributor
jdixon
Member since 06-24-2002, 8:41 AM
Redmond
Posts 438

Ah - you are hitting DOCTYPE issues.

Try changing your DOCTYPE tage to something like:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" >

This will put the browser in quirks mode. Lots of good reading on the web - I'll leave taht searching to you :)

Note that this has nothing to do with Masterpages (or ASP.NET) - as it would happen with an HTML page with the same DOCTYPE tag.

HTH

JD