Question

I am trying to add a label the following way

public partial class _base : System.Web.UI.MasterPage
{
    protected void Page_Load(object sender, EventArgs e)
    {

        lblText.Text ="Hello";
    }
}

}

The problem is it is telling Object reference not set to an intance of an object. This is the code behind my MasterPage.cs.

  <asp:Label ID="lblText" runat="server" Text="Label"></asp:Label>

In master page

Answer 1

Where your code has

Label lblText;

you should put

Label lblText = new Label();

instead. This will make the error go away, because then an actual instance of the label control will be referenced by the lblText variable. But the label will not show up until you also add

 Controls.Add(lblText);

to your page load event.

Alternatively, you could add the label to your page as @amonteiro suggests. Then you could put it in a location that makes sense for the rest of your application.