Access the asp page controllers inside a static method

Question

I have a Webpage having some controls like Text box, Buttons ,etc.,

 

Asp:
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:TextBox ID="TextBox2" runat="server" ReadOnly = "false"></asp:TextBox>
<asp:TextBox ID="TextBox1" runat="server" ReadOnly = "false"></asp:TextBox>
<asp:button runat="server" id="loadbtn" Text="Load" />

C#:
public static Array Load()
{
 string a=textbox1.text.Tostring();
 // I Can't access the controls inside a static method.
}

 Please suggest some ideas .,