Hi,

I have a master page in which i have 2 contentplaceholders.

Can i load the contentplaceholders programatically to load a specific web form ar runtime

say contentplaceholder.load("default.aspx")..something like this

regard

Punnaghai 

Try this: Place an IFRAME inside the Content page (<asp:Content>) and change the SRC property of the  IFRAME from the code-behind.

<asp:Content ID="iframe" runat="server" ContentPlaceHolderID="pid">
<iframe runat="server" id="if"></iframe>
</asp:Content>

 
iframePlaceHolder// Assuming the ContentPlaceHolder control ID in the master page is 
HtmlGenericControl ifx = (HtmlGenericControl)this.Master.FindControl("iframePlaceHolder").FindControl ("if");
ifx.Attributes["src"] = "<URL>";
  

I am already using frames and trying to convert those pages to master pages with content holders

i was thinking about other alternatives other than iframes 

IFRAME is the only one (apart from FRAME/FRAMESETs which is not suitable for your case) that can load other pages directly.

Other (perhaps, long) way is to request the target page manually (using HttpWebRequest/HttpWebResponse) and load the  content into a Label control. But, this may its own limitations.

Hi,

In fact, the master page is entirely different from the iframe, the the MasterPage class derives from the UserControl class, it works as a usercontro on the content page.

You can try to change the master page file for the master page in the  PreInit event dynamically, but you cannot use like you said: contentplaceholder.load("default.aspx")

If you want to use like this, you can use the ifrme, cannot use master page.

You can try to read this article, it talks how the master page works. http://www.odetocode.com/Articles/450.aspx

Hope it helps.