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第三方控件验证码的使用

2010-04-17 12:43 309 查看

后台代码：

protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack )
{
SerialNumber1.Create();//创建新的验证码
}

}
/// <summary>
/// 判断输入是否正确
/// </summary>
/// <returns></returns>
private bool checkCode()
{
if (SerialNumber1 .CheckSN (TextBox1 .Text .Trim ()))
{
return true;
}
else
{
SerialNumber1.Create();//创建新的验证码
return false;
}

}
/// <summary>
/// 提交按钮
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Button2_Click(object sender, EventArgs e)
{
if (checkCode ())
{
//string scriptString = "alert('验证成功!');window.location='vilidateSuccess.aspx'";
//Page.ClientScript.RegisterClientScriptBlock(this .GetType (),scriptString ,scriptString ,true);
Literal1.Text = "<script>alert('验证成功!');window.location='vilidateSuccess.aspx'</script>";
}
else
{
Label1.Text = "验证码不正确";
}
}
/// <summary>
/// 看不清按钮
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Button1_Click(object sender, EventArgs e)
{
SerialNumber1.Create();//创建新的验证码
}

页面代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="SanFangKongJian.aspx.cs" Inherits="SanFangKongJian" %>

<%@ Register Assembly="WebValidates" Namespace="WebValidates" 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>
<cc1:serialnumber id="SerialNumber1" runat="server"></cc1:serialnumber>
<asp:Button ID="Button1" runat="server" Text="看不清" OnClick="Button1_Click" />
<br />
<br />
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox><br />
<asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="提交" />
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
<asp:Literal ID="Literal1" runat="server"></asp:Literal></div>
</form>
</body>
</html>

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