File Upload

   <asp:FileUpload ID="FileUpload1" runat="server" />
 <asp:Button ID="Button2" runat="server"Text="Button" onclick="Button2_Click" />
<asp:Label ID="Label1" runat="server" ></asp:Label>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;


public partial class patientreportform : System.Web.UI.Page
{
 
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {

        }
    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        FileUpload1.SaveAs(Server.MapPath("~") + "//files//" + FileUpload1.FileName);
        Label1.Text = FileUpload1.FileName;
    }
}