Reference a MasterPage property

I have a master page with the following code:

public partial class MasterPage : System.Web.UI.MasterPage
{
    public SqlConnection cnx;
    protected void Page_Load(object sender, EventArg开发者_开发技巧s e)
    {
 
    }
}

How do I reference the public SqlConnection cnx property from an aspx.cs file that uses this master page?

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In your master page:

    public SqlConnection CnxInMasterPage
    {
        get { return this.cnx; }
    }

In Content page (first add using so you can reference 'MasterPage' type)

var cnx = ((MasterPage)Master).CnxInMasterPage;

---

You have a couple of options:

1. cast the Master property to your MasterPage type and proceed from there.
2. Include <%@ MasterType virtualpath="~/path/to/master.master" %> in your aspx file which will strongly type the Master property.

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You should declare an interface IMyMasterPage and put the property there. Allow your master page to implement it.

Then you can do this on your page.

var myMasterPage = this.MasterPage as IMyMasterPage