ASP.NET页面弹出模式对话框！！
LoginForm.aspx:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="LoginForm.aspx.cs" Inherits="LoginForm" %>
<!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"><style type="text/css">
#warp
{
position: absolute; width:240px; height:200px; left:50%; top:50%; margin-left:-120px; margin-top:-100px;
} /*表格样式*/ .tableCss { border-collapse:collapse; /* 关键属性：合并表格内外边框(其实表格边框有2px，外面1px，里面还有1px哦) */ border:solid #6699cc; /* 设置边框属性；样式(solid=实线)、颜色(#6699cc) */ border-width:1px 0 0 1px; /* 设置边框状粗细：上 右 下 左 = 对应：1px 0 0 1px */ } .tableCss th{border:solid #6699cc;border-width:0 1px 1px 0;padding:2px;} .tableCss td {border:solid #6699cc;border-width:0 1px 1px 0;padding:2px;} /*按钮样式*/ .ButtonCss { font-family: "Tahoma", "宋体"; font-size:9pt; color: #003399; border: 1px #003399 solid; color:006699; BORDER-BOTTOM: #93bee2 1px solid; BORDER-LEFT: #93bee2 1px solid; BORDER-RIGHT: #93bee2 1px solid; BORDER-TOP: #93bee2 1px solid; background-image:url(../images/true.gif); background-color: #e8f4ff; CURSOR: hand; font-style: normal ; width:50px; height:22px; } .EditBox { background: #ffffff; border: 1px solid #B7B7B7; color: #003366; cursor: text; font-family: "Arial"; font-size: 9pt; height: 18px; padding: 1px; }
</style> <base target="_self"></head><body> <form id="form1" runat="server"> <div id="warp"> <table> <tr> <td> <asp:Label ID="labUserName" runat="server" Text="用户名："></asp:Label> </td> <td> <asp:TextBox ID="txtUserName" CssClass="EditBox" runat="server"></asp:TextBox> <ASP:RequiredFieldValidator ValidationGroup="myValidationGroup" id="ValidatorUserName" Runat="Server" ControlToValidate="txtUserName" ErrorMessage="姓名必须输入" Display="Static" >*</ASP:RequiredFieldValidator> </td> </tr> <tr> <td> <asp:Label ID="labPassWord" runat="server" Text="密码："></asp:Label> </td> <td> <asp:TextBox ID="txtPassWord" CssClass="EditBox" runat="server"></asp:TextBox> <ASP:RequiredFieldValidator ValidationGroup="myValidationGroup" id="ValidatortxtPassWord" Runat="Server" ControlToValidate="txtPassWord" ErrorMessage="密码必须输入" Display="Static" >*</ASP:RequiredFieldValidator> </td> </tr> </table> <div style="text-align: center; height:25px; vertical-align: middle;"> <asp:Button ID="btnLogin" runat="server" ValidationGroup="myValidationGroup" CssClass="ButtonCss" Text="登录" OnClick="btnLogin_Click"/> <asp:Button ID="btnCancel" runat="server" CssClass="ButtonCss" Text="取消" OnClick="btnCancel_Click"/> </div> </div> </form></body></html>后台代码：
public partial class LoginForm : System.Web.UI.Page
{
UserLogin userLogin = new UserLogin();
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnCancel_Click(object sender, EventArgs e)
{
txtPassWord.Text = "";
txtUserName.Text = "";
}
protected void btnLogin_Click(object sender, EventArgs e)
{
string userName = txtUserName.Text.Trim();
string passWord = txtPassWord.Text.Trim();
int IDValue = userLogin.IDValue(userName, passWord);
if (IDValue > 0)
{
Session["UID"] = IDValue;
Session["UserName"] = userName;
Session["UserPass"] = passWord;
//Response.Redirect("Index.aspx", true);//window.opener=null
//indow.dialogArguments.location.reload()
//loginInfo为框架！！
Response.Write("<script language='javascript'>window.dialogArguments.loginInfo.location.reload();window.close(this);</script>");
Response.Write();
}
//window.opener.location.reload();
//
//Response.Write("<script>self.close();</script>");
}
}
写了个基类：
重载 OnInit(EventArgs e),代码：
protected override void OnInit(EventArgs e){if (Session["UID"] == null) { Page.RegisterStartupScript("", "<script language=javascript>alert('你的没有登录！请登录！！');window.showModalDialog('LoginForm.aspx',parent,'dialogWidth:400px;dialogHeight:300px;center:yes;status:no;scroll:yes;help:no;');</script>"); }}然后页面继承基类即可！！
可以判断用户是否登录！！
