Question

In Application_Start I’m trying to filter datatable. In other code behind files I’m able to use AsEnumerable() of DataTable; but not in Global.asax. Any reason?

Answer 1

I made separate code behind file for Global.asax

Global.asax:

<%@ Application Codebehind="Global.asax.cs" Language="C#" %>

Global.asax.cs:

public class Global : HttpApplication
{

    void Application_Start(object sender, EventArgs e)
    {
        ....
        var filtered = from entity in dt.AsEnumerable()
                       .Where(entity => entity.Field<int>("SerialNumber") == key)
                       select entity;

        ....
    }
    ....
}