How to add a Control to ContentPlaceHolder from server code?

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I mean, I want to do something like that: ContentPlaceHolder1.Controls.Add(Panel1), but I don't want to put Panel1 in aspx file because I want to add Controls from a abstract page.

Posted 28-Aug-13 1:45am

MarcoTúlio

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MTProgrammer · Answer 1 · 2013-08-28T10:29:00

Assuming I understand you question it appears you want to add a panel control to a contentplaceholder dynamically in the code behind/file.

Panel pnl = new Panel();
pnl.Controls.Add(new TextBox()); // add textbox to panel can be whatever control you want
ContentPlaceHolder cph = (ContentPlaceHolder)this.Master.FindControl("MainContent");
cph.Controls.Add(pnl);

Or alternatively:

Panel pnl2 = new Panel();
pnl2.Controls.Add(new TextBox()); // add textbox to panel can be whatever control you want
ContentPlaceHolder cph = (ContentPlaceHolder)this.Master.FindControl("MainContent").Controls.Add(pnl2);

ASPX Page Code:

<asp:content id="HeaderContent" runat="server" contentplaceholderid="HeadContent" xmlns:asp="#unknown">
</asp:content>
<asp:content id="BodyContent" runat="server" contentplaceholderid="MainContent" xmlns:asp="#unknown">
    <p>Page content here</p>
</asp:content>