Get reference to the Master Page from the base class of content pages

Question

I have a few content pages that inherit from BasePage and use a Master Page.

From the BasePage.cs file, I need to call a method defined in the Master Page.

How would I do it?

Answer 1

This should do it:

    var masterPage = ((MasterPageType)Master);
or to access the function:
    ((MasterPageType)Master).SomeFunction();

You might have to set the master page file in your base page programmatically as well. We do it in the OnPreInit function.

this.MasterPageFile = "~/masterPage.master";

Answer 2

You can use

Page.Master

You can than cast that property to your specific masterpage type.

Answer 3

You can use Strongly Typed Master Pages. Also, see here.

Answer 4

Lets say you have a property given below to enable header in Master Page:

Master Page Code:

Public Property EnablePageHeader() As Boolean
 Get
  If ViewState("EnablePageHeader") Is Nothing Then
   ViewState("EnablePageHeader") = True
  End If
  Return DirectCast(ViewState("EnablePageHeader"), Boolean)
 End Get
 Set(ByVal value As Boolean)
  ViewState("EnablePageHeader") = value
 End Set
End Property

Now if you want to call this Property from any other base class or any other page then you can write code as follow:

DirectCast(Master, DefaultMaster).EnablePageHeader = False

Hope similar is the case of Methods too.

Please respond if the code above helped you are if there is any mistake in it.

Thanks,