<%@ Page Language="C#" Debug="true" %><script runat="server"> void Page_Load() { if (Page.IsPostBack) { lblTax.Text = "Your tax bill would be $"; lblTax.Text += Convert.ToString(Convert.ToInt32(txtEarnings.Text)*Convert.ToInt32(txtTaxRate.Text)/100); lblTax.Visible=true; } //end if (Page.IsPostBack) }// End Page_Load()</script><html><head> <title>Calculate Tax Bill</title></head><body> <h3>Tax rates </h3> <form runat="server"> Please enter your earnings: $ <asp:TextBox id="txtEarnings" runat="server" width="80px"></asp:TextBox> <br /> Please enter your tax rate, for example enter '7' for 7% <asp:TextBox id="txtTaxRate" runat="server" width="30px"></asp:TextBox> <br /> <asp:Button id="Button1" runat="server" Text="Submit"></asp:Button> <br /> <asp:Label id="lblTax" runat="server" visible="False"></asp:Label> <br /> </form></body></html>