如何在主页面上声明的内容页面的代码后面重新定义变量？

Question

I am building a web application using VS2010 and ASP.NET 4

I have managed to declare and define a variable in a nested master page and call it within the master page. However, how do I change the value of that variable from a content page's codebehind ?

Here are the variable declarations from DeckNav.master.cs (nested master page codebehind):

public partial class DeckNav : System.Web.UI.MasterPage
{

    protected void Page_Load(object sender, EventArgs e)
    {
        this.mfrName = "(BRAND)";
        this.modelName = "(MODEL)";
    }

    public string mfrName { get; set; }
    public string modelName { get; set; }
}

This is how I call the 2 variables (default values) in master page (DeckNav.master):

<asp:ContentPlaceHolder ID="brandAndModel" runat="server">
<h1 class="page-header"> <%= mfrName %> <%= modelName %>
</h1>
</asp:ContentPlaceHolder>

In the content page inherited from DeckNav.master, I need to know how to change the values of the variables accordingly for each ASPX content page from the codebehind.

Example:

public partial class DeckRepair : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        mfrName = "Brand 10";
        modelName = "Model 12";          
    }

}

The snippet above does not work. Visual Studio alerts me that "The name does not exist in the current context".

---

EDIT:

I declared the variables as static on the master page's codebehind to:

public partial class LeftNav : System.Web.UI.MasterPage
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    public static string camMfr { get; set; }
    public static string camModel { get; set; }
}

... and assigned values on the content page's codebehind:

public partial class BrandModel : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        LeftNav.camMfr = "BRAND 11";
        LeftNav.camModel = "MODEL 11";
    }
}

I'm still having the same problem. It successfully assigns the variable the first time to "BRAND 11", but when I load another content page with its own unique values for camMfr and camModel (ie "BRAND 22" , "MODEL 22") it retains the original assigned value ("BRAND 11"). Keep in mind I am NOT assigning a value in the master page, only declaring it.

Answer 1

Try

DeckNav.mfrName = "Brand 10";
DeckNav.modelName = "Model 12";