这是我遇到的最奇怪的错误。我创建了一个模板网站，其中包含一个登录页面。如果您在第一次加载时直接进入登录页面，该按钮不会回发，实际上它什么都不做，只是坐在那里看起来很茫然。但是，如果您首先访问任何其他页面并重定向（因为个人尚未登录），它可以正常工作。
这种情况发生在IE上，但我还没有在其他浏览器上尝试，因为这是内部网的一部分，我们的系统只使用IE8。我还尝试将UseSubmitBehaviour和CausesValidation设置为false，但这没有效果。
我还没有发布所有代码，因为涉及多个页面，所以我对所涉及的页面进行了基本描述
母版页
普通母版页，提供一般布局和样式
的BasePage
应用程序中的所有页面都继承此页面。确保根据用户的设置应用正确的主题/品牌。还要检查以确保用户已登录，如果用户未知，它将针对特定页面将其重定向回登录页面。
Simplelogon.aspx
仅用于处理登录过程的页面。代码
ASPX文件
<asp:Content ID="Content5" ContentPlaceHolderID="cphContent" runat="server">
<asp:UpdatePanel ID="upContainer" runat="server">
<ContentTemplate>
<asp:UpdatePanel ID="pLogon" runat="server">
<ContentTemplate>
<div style="width: 400px; height: 180px; left: 50%; top: 50%; margin-top: -100px; margin-left: -210px; position: fixed; z-index: 101; background-color: #eee; padding: 0px; border: 2px solid #000; text-align: center; padding: 10px;">
<span style="font-weight: bold; font-size: 18pt">Welcome</span>
<table width="100%" border="0" cellpadding="0" cellspacing="10">
<tr>
<td align="center"><b>User ID</b></td>
<td align="center"><b>Password</b></td>
</tr>
<tr>
<td align="center">
<asp:TextBox ID="userID" runat="server" TextMode="SingleLine" BorderColor="#CCCCCC" BorderStyle="Solid" BorderWidth="1"></asp:TextBox><br />
<span style="font-size: 8pt"> </span>
</td>
<td align="center">
<asp:TextBox ID="password" runat="server" TextMode="Password" BorderColor="#CCCCCC" BorderStyle="Solid" BorderWidth="1"></asp:TextBox> <br />
<a href="userReset.aspx" style="font-size: 8pt">[Forgot Password]</a>
</td>
</tr>
<tr>
<td colspan="2" align="center">
<asp:CheckBox ID="cbRememberMe" runat="server" Text="Remember Me" /><br />
<asp:Button ID="logon" runat="server" Text="Logon" /></td>
</tr>
</table>
<asp:Literal ID="litLogonMessage" runat="server"></asp:Literal>
<div style="position: absolute; top: 0px; right: 5px; font-size: 8pt; margin-top: -90px; display: block;">
<a href="UserRegister.aspx">[register]</a>
</div>
</div>
</ContentTemplate>
</asp:UpdatePanel>
</ContentTemplate>
</asp:UpdatePanel>
VB页面提取
Private Sub logon_Click(sender As Object, e As EventArgs) Handles logon.Click
If Not (String.IsNullOrEmpty(userID.Text) Or String.IsNullOrEmpty(password.Text)) Then
Dim sqlParameters As New List(Of SqlClient.SqlParameter)
SQLDB.addParameterToList(sqlParameters, "@PUID", userID.Text)
Dim salt As String = SQLDB.fetchSingleValue("SELECT salt FROM Users WHERE PUID = @PUID", adminDB, sqlParameters)
Dim strSQL As String = "SELECT UserID FROM WebApplication A INNER JOIN Permissions P ON A.ApplicationID = P.FkApplication INNER JOIN Users U ON P.FkUser = U.UserID WHERE PUID = @PUID AND Password2 = @Password AND ((A.ApplicationCode = @AppCode AND P.Locked = 0) OR U.AppsDev = 1)"
Dim rP As String = varSession("ReturnPath")
Dim appCode As String
If fqAppPath.IndexOf("localhost") = -1 Then
appCode = varSession("CallingApplication", "Global")
Else
appCode = SiteCode
End If
sqlParameters.Clear()
SQLDB.addParameterToList(sqlParameters, "@PUID", userID.Text)
SQLDB.addParameterToList(sqlParameters, "@Password", fetchHash(password.Text, salt))
SQLDB.addParameterToList(sqlParameters, "@AppCode", appCode)
Dim result As String = SQLDB.fetchSingleValue(strSQL, adminDB, sqlParameters)
If IsNumeric(result) Then
varSession("UserName", "Global") = userID.Text
varSession("UserID", "Global") = result
strSQL = "SELECT AppsDev, PasswordExpires FROM Users WHERE UserID = @UserID"
sqlParameters.Clear()
SQLDB.addParameterToList(sqlParameters, "@UserID", result)
Dim dt As DataTable = SQLDB.fetchMultipleValues(strSQL, adminDB, sqlParameters)
If Convert.ToBoolean(dt.Rows(0).Item("AppsDev")) Then
varSession("AppsDev", "Global") = True
Else
varSession("AppsDev", "Global") = False
End If
Dim sql As String = ""
Dim myCookies As New GenericCookie()
myCookies.setRememberMeCookie(cbRememberMe.Checked)
myCookies.SetCookies(varSession("UserID", "Global"), varSession("UserName", "Global"))
sql = "UPDATE Permissions SET LastUsed = current_timestamp WHERE FkUser = " & varSession("UserID", "Global") & " AND FkApplication IN (SELECT ApplicationID FROM WebApplication WHERE ApplicationCode = '" & appCode & "')"
SQLDB.executeSqlCUD(sql, adminDB)
If dt.Rows(0).Item("PasswordExpires") < Now Then
Dim newPassword As String = generatePassword()
Dim newSalt As String = generatePassword()
Dim newHash As String = fetchHash(newPassword, newSalt)
Dim newDate As DateTime = Now.AddMonths(6)
sql = "UPDATE Users (Password2, Salt, PasswordExpires, PasswordExpired) VALUES ('" & newHash & "', '" & newSalt & "', '" & newDate & "', 0) WHERE UserID = '" & result
SQLDB.executeSqlCUD(sql, adminDB)
litNewPassword.Text = newPassword
pLogon.Visible = False
pChangePassword.Visible = True
Else
If String.IsNullOrEmpty(rP) Then
Response.Redirect("default.aspx")
Else
Response.Redirect(rP)
End If
End If
Else
password.Text = Nothing
litLogonMessage.Text = "Unable to verify your credentials.<br />Please check your User ID and re-enter your password to try again"
varSession("FailedLogons", "Global") = varSession("FailedLogons", "Global") + 1
If varSession("FailedLogons", "Global") > 3 Then
Response.Redirect("/accessdenied.aspx"))
End If
End If
Else
If String.IsNullOrEmpty(userID.Text) Then
userID.BorderColor = Drawing.Color.Red
userID.BorderStyle = BorderStyle.Solid
userID.BorderWidth = 2
Else
userID.BorderColor = Drawing.Color.Silver
userID.BorderStyle = BorderStyle.Solid
userID.BorderWidth = 1
End If
If String.IsNullOrEmpty(password.Text) Then
password.BorderColor = Drawing.Color.Red
password.BorderStyle = BorderStyle.Solid
password.BorderWidth = 2
Else
password.BorderColor = Drawing.Color.Silver
password.BorderStyle = BorderStyle.Solid
password.BorderWidth = 1
End If
litLogonMessage.Text = "<span style=""color: #f00"">Please enter your User ID <b>and</b> password to continue</span>"
End If
End Sub
答案 0 :(得分：0)
我发现它是什么，我基本上是在脚下射击自己。该页面正在回发，但由于系统中的某些代码更深入，因此它直接通过并且什么都不做。
感谢那些帮助我走上正确道路的人