新建一个AjaxControlToolkitWebSite 项目，把下面的代码复制到你的页面：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
<link href="StyleSheet.css" rel="stylesheet" type="text/css" />
</head>
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" />
<div>
<br />
Text Indicators<br />
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> <br />
<asp:Label ID="Label1" runat="server" Width="153px"></asp:Label><br />
<br />
Status Bar Indicators<br />
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox><br />
<asp:Label ID="Label2" runat="server" Width="154px"></asp:Label><br />
<br />
Help Indicators<br />
<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox><br />
<asp:Label ID="Label3" runat="server" Width="154px"></asp:Label><br />
<br />
<br />
<ajaxToolkit:PasswordStrength ID="PasswordStrength1" runat="server" TargetControlID="TextBox1"
DisplayPosition="RightSide"
StrengthIndicatorType="Text"
PreferredPasswordLength="10"
PrefixText="Strength:"
TextStrengthDescriptions="Very Poor;Weak;Average;Strong;Excellent"
MinimumNumericCharacters="0"
MinimumSymbolCharacters="0"
HelpStatusLabelID="Label1"
TextCssClass="TextIndicator_TextBox1"
RequiresUpperAndLowerCaseCharacters="false">
</ajaxToolkit:PasswordStrength>
<ajaxToolkit:PasswordStrength ID="PasswordStrength2" runat="server" TargetControlID="TextBox2"
DisplayPosition="RightSide"
StrengthIndicatorType="BarIndicator"
BarIndicatorCssClass="BarIndicator_TextBox2"
BarBorderCssClass="BarBorder_TextBox2"
PreferredPasswordLength="10"
PrefixText="Strength:"
TextStrengthDescriptions="Very Poor;Weak;Average;Strong;Excellent"
MinimumNumericCharacters="1"
MinimumSymbolCharacters="1"
HelpStatusLabelID="Label2"
RequiresUpperAndLowerCaseCharacters="true">
</ajaxToolkit:PasswordStrength>
<ajaxToolkit:PasswordStrength ID="PasswordStrength3" runat="server" TargetControlID="TextBox3"
TextCssClass="TextIndicator_TextBox3"
DisplayPosition="RightSide"
StrengthIndicatorType="Text"
PreferredPasswordLength="20"
PrefixText="Meets Polixy : "
MinimumNumericCharacters="2"
MinimumSymbolCharacters="2"
HelpStatusLabelID="Label3"
HelpHandleCssClass="TextIndicator_TextBox3_Handle"
HelpHandlePosition="BelowRight"
TextStrengthDescriptions="Not at all; Very Low Compliance; Low Compliance; Average Compliance; Good Compliance; High Compliance; Yes"
RequiresUpperAndLowerCaseCharacters="true" >
</ajaxToolkit:PasswordStrength>
</div>
</form>
</body>
</html>