解決Button的OnClientClick和RequiredFieldValidator的冲突问题

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OnClientClick和RequiredFieldValidator同时使用会存在冲突问题，而导致RequiredFieldValidator失效

解决方法：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ButtonConfirm1.aspx.cs" Inherits="ButtonConfirm1" %><!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>ButtonConfirm</title></head><body>    <form id="form1" runat="server">    <div>        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>        <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="TextBox1"            ErrorMessage="不可為空白"></asp:RequiredFieldValidator>        <br />        <asp:Button ID="Button2" runat="server" Text="送出" OnClientClick="return ConfirmMe()" />    </div>    </form></body></html>

<script type="text/javascript">function ConfirmMe(){   if(Page_ClientValidate())   {        return confirm('確定送出嗎?');   }   else   {        return false;   }}</script>

增加Page_ClientValidate()判断

转载自http://www.dotblogs.com.tw/puma/archive/2008/03/26/2313.aspx