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Editorial Team
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Asked: 2026-05-12T05:32:39+00:00

Ok, please understand the architecture here first. OurMasterPage.aspx has user control Header.ascx Header.ascx has

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Ok, please understand the architecture here first.

  • OurMasterPage.aspx has user control Header.ascx
  • Header.ascx has a user control in it called LandingPageTopNav
  • LandingPageTopNav.ascx has a public property named “LandingPage” that is there to be able to set by the user using this control.
  • And I have a Third.aspx page in which I need to set the LandingPageTopNav property to a LandingPage object

The problem is that I can’t get this to work in my ThirdPage.aspx.cs:

    Master.LandingPageTopNav.LandingPage = this.landingPage;
    Master.LandingPageTopNav.Visible = true;

And that is, I can’t get the first line to work where I’m trying to reference the LandingPage property. The second line is fine. My Third.aspx definitely can reference my master page objects otherwise from code-behind.

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1 Answer

  1. Editorial Team

    I’d venture to guess that the LandingPageTopNav property of OurMasterPage doesn’t return a value typed as LandingPageTopNav. It probably returns the correct control typed as something more generic (e.g. Control); which is why setting the Visible property works but not the LandingPage property.

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