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我正在使用Visual Studio 2013，並且正在開發ASP.NET Web應用程序。我從工具箱拖放登錄控件。它的表單名稱是'Form1'，登錄ID是'log1'。我嘗試訪問名爲「UserName」的登錄表單中的文本框和「log1.UserName」和「log1.Password」中的「Password」。我總是得到這個錯誤，'名稱'log1'在當前上下文中不存在。我該怎麼辦？誰能幫忙？提前致謝！工具箱中的ASP.NET visual studio 2013登錄控件始終在代碼後面顯示錯誤
我的文件home.aspx.cs背後代碼：
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;
public partial class Home : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
}
}
static int count = 0;
protected void log1_Authenticate(object sender, AuthenticateEventArgs e)
{
if (log1.UserName == "Admin" && log1.Password == "Admin")
{
Response.Redirect("Adminhome.aspx");
}
else if (YourValidationFunction(log1.UserName, log1.Password))
{
Session["User"]=log1.UserName;
e.Authenticated = true;
Response.Redirect("userhome.aspx");
log1.TitleText = "Successfully Logged In";
}
else
{
e.Authenticated = false;
count++;
if (count >= 3)
{
count = 0;
Session["User"] = log1.UserName;
Server.Transfer("MainPage.aspx");
}
}
}
SqlConnection strConnection = new SqlConnection("server=.\\SQLEXPRESS;database=honeypot;integrated security=true;");
private bool YourValidationFunction(string UserName, string Password)
{
bool boolReturnValue = false;
String SQLQuery = "SELECT UserName, Password FROM Register";
SqlCommand command = new SqlCommand(SQLQuery, strConnection);
SqlDataReader Dr;
strConnection.Open();
Dr = command.ExecuteReader();
while (Dr.Read())
{
if ((UserName == Dr["UserName"].ToString()) & (Password == Dr["Password"].ToString()))
{
boolReturnValue = true;
}
}
Dr.Close();
return boolReturnValue;
}
protected void lnkRegis_Click(object sender, EventArgs e)
{
Response.Redirect("AdUserAcc.aspx");
}
}
Home.aspx：
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
</div>
<asp:Login ID="log1" runat="server">
<LayoutTemplate>
<table cellpadding="1" cellspacing="0" style="border-collapse:collapse;">
<tr>
<td>
<table cellpadding="0">
<tr>
<td align="center" colspan="2">Log In</td>
</tr>
<tr>
<td align="right">
<asp:Label ID="UserNameLabel" runat="server" AssociatedControlID="UserName">User Name:</asp:Label>
</td>
<td>
<asp:TextBox ID="UserName" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="UserNameRequired" runat="server" ControlToValidate="UserName" ErrorMessage="User Name is required." ToolTip="User Name is required." ValidationGroup="log1">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="right">
<asp:Label ID="PasswordLabel" runat="server" AssociatedControlID="Password">Password:</asp:Label>
</td>
<td>
<asp:TextBox ID="Password" runat="server" TextMode="Password"></asp:TextBox>
<asp:RequiredFieldValidator ID="PasswordRequired" runat="server" ControlToValidate="Password" ErrorMessage="Password is required." ToolTip="Password is required." ValidationGroup="log1">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td colspan="2">
<asp:CheckBox ID="RememberMe" runat="server" Text="Remember me next time." />
</td>
</tr>
<tr>
<td align="center" colspan="2" style="color:Red;">
<asp:Literal ID="FailureText" runat="server" EnableViewState="False"></asp:Literal>
</td>
</tr>
<tr>
<td align="right" colspan="2">
<asp:Button ID="LoginButton" runat="server" CommandName="Login" Text="Log In" ValidationGroup="log1" />
</td>
</tr>
</table>
</td>
</tr>
</table>
</LayoutTemplate>
</asp:Login>
仍然log1顯示錯誤。它的log1有錯誤。不是用戶名和密碼。即使在我們的代碼中的log1也顯示錯誤。 –