How to Execute Page_Load() in Page's Base Class?

https://stackoverflow.com/questions/2737092/how-to-execute-page-load-in-pages-base-class

We faced the similar problem, All you need to do is just register the handler in the constructor. :)

public class FactsheetBase : System.Web.UI.Page
{ 

    public FactsheetBase()
    {
        this.Load += new EventHandler(this.Page_Load);
    }

    public MyPageData Data { get; set; }
    protected void Page_Load(object sender, EventArgs e)
    {
        // get data that's common to all implementors of FactsheetBase
        // and store the values in FactsheetBase's properties
        this.Data = ExtractPageData(Request.QueryString["data"]);
    }
}

Another approach would be to override OnLoad() which is less preferred.

public class FactsheetBase : System.Web.UI.Page
{ 

    public FactsheetBase()
    {
    }

    public MyPageData Data { get; set; }
    protected override void OnLoad(EventArgs e)
    {
        //your code
        // get data that's common to all implementors of FactsheetBase
        // and store the values in FactsheetBase's properties
        this.Data = ExtractPageData(Request.QueryString["data"]);             

        base.OnLoad(e);
    }
}