前台：
2
3 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4
5 <html xmlns="http://www.w3.org/1999/xhtml" >
6 <head runat="server">
7 <title></title>
8 </head>
9 <body>
10 <form id="form1" runat="server">
11 <div>
12
13
14 Time1:<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>+
15 Time2: <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>=<asp:Label ID="Label1"
16 runat="server" Text="Label"></asp:Label>
17 <asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
18 </div>
19 </form>
20 </body>
21 </html>
22
后台：
2 {
3 using System;
4 using System.Web.UI;
5
6 public partial class _Default : Page
7 {
8 protected void Page_Load(object sender, EventArgs e)
9 {
10 if (!IsPostBack)
11 {
12 }
13 }
14
15 protected void Button1_Click(object sender, EventArgs e)
16 {
17 DateTime beginTime1 = DateTime.Parse(TextBox1.Text);
18 TimeSpan midTime = TimeSpan.Parse(TextBox2.Text);
19 Label1.Text = beginTime1.Add(midTime).ToString();
20 }
21 }
22 }
转载于:https://www.cnblogs.com/haylim/archive/2010/07/01/1769349.html