ASP.NET - Accessing Master Page elements form the Content Page

Yes...if you need to do this from the aspx page using the MasterPage it would be:

Button myButton = (Button)Master.FindControl("myButton");
myButton.Visible = false;

You have to put a reference to the MasterPage in your page/user control markup.

<%@ Reference VirtualPath="..." %>

Then in the code-behind, you just cast the Page.MasterPage to your MasterPage and access its properties.

MyMasterPage myMasterPage = (MyMasterPage)Page.Master;

Master.FindControl("myButton").Visible = False

Be careful that the control that you use to run the above command, should not be inside an Update panel.

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