Update masterpage from App_Code files

[PoppapumpJ]

I apologize if this is somewhere else and I've just missed it.

I have a footer (label control) in my MaterPage that I use to display any errors that occur during the processing of a transaction.

I have opened this label control as a public property in the master page and I can add text to the control from my regular pages.

My problem is that I would like to display errors that occur in some of my globally accessable functions which reside in the App_Code.

Since items in App_Code can't see the items outside of it, I'm having trouble dsplaying these messages.

So far, the best I have come up with is to put the messages in a collection stored as a session variable. The Master page then reads from the session variable. It works... but it just doesn't feel right.

Thanks for the help.

 

[jmeckley]

Pass the masterpage the object in your App_Code directory and set the error messages. or better yet, use a view and remove any requirement to the web.

IErrorsView
{
   string[] Errors {set;}
}

MyMasterPage : MasterPage, IErrorsView
{
   public string[] Errors
   {
      set   
      {  
         controlToDisplayErrors.DataSource = value;
         controlToDisplayErrors.DataBind();
      }
   }
}

public class MyControlToCollectErrors
{
    //...other members
    void DisplayErrorsTo(IErrorsView view)
    {
        view.Errors = GetArrayOfErrors();
    }
}

then somewhere in your code pass the Master page to the function.

Jason Meckley
Programmer
Specialty Bakers, Inc.

 

[PoppapumpJ]

thanks Jason,

I guess what I am having trouble with is passing the object to the masterpage.

Items in the App_Code are not really part of the Page namespace...So I'm having trouble hooking into the in-use instance of the master page.

Sorry if I'm not using the correct vocabulary..I'm fairly new to .NET.

 

[jmeckley]

by using an interface and having the master page inherit the interface you don't need references to System.Web.

from the Master page you could do
[tt]instanceOfMyControlToCollectErrors.DisplayErrorsTo(this);[/tt]
from a Page it would look like this
[tt]instanceOfMyControlToCollectErrors.DisplayErrorsTo((MyMasterPage)Master);[/tt]
from another object type of object, which is not a page or master
[tt]instanceOfMyControlToCollectErrors.DisplayErrorsTo(theObject.PropertyOfTypeIErrorsView);[/tt]



Jason Meckley
Programmer
Specialty Bakers, Inc.