ValidatorCallout控件,该控件用于用户控件中输入不符合格式要求的内容之后,提示操作错误信息。
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ValidatorCalloutDemo.aspx.cs"
Inherits="ValidatorCalloutDemo" %>

<%@ Register Assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral,
PublicKeyToken=31bf3856ad364e35"
Namespace="System.Web.UI" TagPrefix="asp" %>

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>

<!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>无标题页</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<table>
<tr>
<td>电子邮件:</td>
<td><asp:TextBox runat="server" ID="MailTextBox" BorderStyle="solid"
BorderWidth="1px" BorderColor="#a9a9a9" /></td>
</tr>
</table>
<br />
<asp:RegularExpressionValidator runat="server" ID="PNRegEx"
ControlToValidate="MailTextBox" Display="None" ErrorMessage="<b>格式不正确</b><br />请按如下格式填写<br />carol@sina.com" ValidationExpression="w+([-+.']w+)*@w+([-.]w+)*.w+([-.]w+)*" />
<asp:Button ID="Button1" runat="server" Text="提交" />
<cc1:ValidatorCalloutExtender runat="Server" ID="PNReqE" TargetControlID="PNRegEx"
Width="100px" />
</div>
</form>
</body>
</html>
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ValidatorCalloutDemo.aspx.cs" Inherits="ValidatorCalloutDemo" %>

<%@ Register Assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
Namespace="System.Web.UI" TagPrefix="asp" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
<!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>无标题页</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<table>
<tr>
<td>电子邮件:</td>
<td><asp:TextBox runat="server" ID="MailTextBox" BorderStyle="solid" BorderWidth="1px" BorderColor="#a9a9a9" /></td>
</tr>
</table>
<br />
<asp:RegularExpressionValidator runat="server" ID="PNRegEx" ControlToValidate="MailTextBox" Display="None" ErrorMessage="<b>格式不正确</b><br />请按如下格式填写<br />carol@sina.com" ValidationExpression="w+([-+.']w+)*@w+([-.]w+)*.w+([-.]w+)*" />
<asp:Button ID="Button1" runat="server" Text="提交" />
<cc1:ValidatorCalloutExtender runat="Server" ID="PNReqE" TargetControlID="PNRegEx" Width="100px" />
</div>
</form>
</body>
</html>
本文介绍了一个使用ValidatorCalloutExtender控件的示例,该控件用于在用户输入不符合格式要求时显示提示信息。示例展示了如何在ASP.NET页面上设置电子邮件验证,并通过ValidatorCalloutExtender增强用户体验。

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