Add days in existing date ASP.NET example

Introduction

Using AddDays method  you can add Days in integer, Object will be updated with new date. This method is used where you want to calculate date after some days. Like Library management project. Lets take an simple example
<form id="form1" runat="server">
    <div>  
        <asp:Button ID="Button1"
        runat="server"
        BackColor="#66CCFF"
        onclick="Button1_Click" Text="Click" />  
    </div>
        <asp:Label ID="Label1"
        runat="server"
        BackColor="Yellow"></asp:Label>
    </form>
Code Behind-
protected void Button1_Click(object sender, EventArgs e)
        {          
            DateTime today = DateTime.Today;
            DateTime after2Days = today.AddDays(2);
            Label1.Text = "today= " + today.ToLongDateString();
            Label1.Text += "<br /><br />after added 2 days with today= ";
            Label1.Text += after2Days.ToLongDateString();

        }  
OutPut-