troubleshooting Question

Accessing Controls on a Master page from a class in the app_code folder

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djcheekyFlag for United States of America asked on
.NET ProgrammingC#ASP.NET
8 Comments1 Solution395 ViewsLast Modified:

I am trying to get a handle on a control (a contentPlaceHolder) on one of my master pages.

So I did a bit of research and foun out that you can't actually access it directly from a class in the app_code folder to them being compiled in different assemblies.

What I read is that you need to create a base class and derive that from the MasterPage class.

I'm not really sure how to do this???

If you look at the code below (which is in a class called ErrorHandler.cs in app_code) you will see a reference to Master. This is not allowed and throws an error saying I don't have access to it.

How do I get access to this master page via my class??


public void SetErrorContent(string contentPlaceHolderName, string controlName)
        ContentPlaceHolder myContentPlaceHolder;
        Label myLabel;
        myContentPlaceHolder = (ContentPlaceHolder)Master.FindControl(contentPlaceHolderName);
       if (myContentPlaceHolder != null)
           myLabel = (Label)myContentPlaceHolder.FindControl(controlName);
           if (myLabel != null)
                myLabel.Text = "Label found!";
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