时间输入的验证

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前台js验证：

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="validateCode.aspx.cs" Inherits="practise.validateCode" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title></title> <mce:script type="text/javascript" language="javascript"></mce:script></head><body> <form id="form1" runat="server"> <asp:ScriptManager ID="ScriptManager1" runat="server" /> <div> <input type="text" id="t_date" /> <input type="button" id="b_validate" value="javaScript验证" runat="server" onclick="validateDate();" /> <hr style="width: 100%; height: 5px; background-color: Gray" /> 开始时间：<asp:TextBox ID="tb_startDate" runat="server" /><br /> 结束时间：<asp:TextBox ID="tb_endDate" runat="server" /><br /> <asp:Button ID="btn_validate" Text="后台服务器端验证" runat="server" OnClick="btn_validate_Click" /> </div> </form></body></html>

后台验证：

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;namespace practise{ public partial class validateCode : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { ScriptManager1.RegisterAsyncPostBackControl(btn_validate); //ajax无刷新技术，在这里注册按钮这样就不用写updatePanel了 } /// <summary> /// 验证时间是否输入正确 /// </summary> /// <returns></returns> private bool validateDate(ref string message) { bool result = false; try { Convert.ToDateTime(tb_startDate.Text); try { Convert.ToDateTime(tb_endDate.Text); if (!string.IsNullOrEmpty(tb_startDate.Text) && !string.IsNullOrEmpty(tb_endDate.Text)) { DateTime maintainStartDateTime = Convert.ToDateTime(tb_startDate.Text); DateTime maintainEndDateTime = Convert.ToDateTime(tb_endDate.Text); if (maintainStartDateTime > maintainEndDateTime) { message = "开始日期不能大于结束日期！"; result = false; } else { result = true; } } } catch (Exception) { message = "结束时间输入错误！"; tb_endDate.Focus(); result = false; } } catch (Exception) { message = "开始时间输入错误！"; tb_startDate.Focus(); result = false; //throw;注：throw上面有处理就不用了 } return result; } protected void btn_validate_Click(object sender, EventArgs e) { string message = string.Empty; if (validateDate(ref message)) { ScriptManager.RegisterStartupScript(this, GetType(), "", "alert('ok!');", true); } else { ScriptManager.RegisterStartupScript(this, GetType(), "", "alert('" + message + "');", true); } } }}