Asp.net 如何更改profilebase的默认连接字符串

我正在web应用程序中使用配置文件功能。我在网上得到一篇有用的文章。根据本文，我编写了我的

web.config

，一个自定义概要文件类，一个概要文件信息类。下面是我的代码

Dim profile As UserProfile = UserProfile.GetProfile(lblEmail.Text)
With profile.UserProfileInfo
    .Address1 = txtAddress1.Text
    .Address2 = txtAddress2.Text
    .City = txtCity.Text
    profile.Save()
End With

我的代码

Dim profile As UserProfile = UserProfile.GetProfile(lblEmail.Text)
With profile.UserProfileInfo
    .Address1 = txtAddress1.Text
    .Address2 = txtAddress2.Text
    .City = txtCity.Text
    profile.Save()
End With

web.config

Dim profile As UserProfile = UserProfile.GetProfile(lblEmail.Text)
With profile.UserProfileInfo
    .Address1 = txtAddress1.Text
    .Address2 = txtAddress2.Text
    .City = txtCity.Text
    profile.Save()
End With

UserProfileInfo.vb

Public Class UserProfile
    Inherits ProfileBase

    Public ReadOnly Property UserProfileInfo As UserProfileInfo
        Get
            Return DirectCast(GetPropertyValue("UserProfileInfo"), UserProfileInfo)
        End Get
    End Property

    Public Shared Function GetProfile() As UserProfile
        Return DirectCast(HttpContext.Current.Profile, UserProfile)
    End Function

    Public Shared Function GetProfile(ByVal UserName As String) As UserProfile
        Return DirectCast(Create(UserName), UserProfile)
    End Function

End Class  

<Serializable()>
Public Class UserProfileInfo
    Dim _Name As String
    Dim _Company As String
    Dim _Address1 As String
    Dim _Address2 As String
    Dim _City As String
    Dim _State As String
    Dim _Country As String
    Dim _Zip As String
    Dim _PhoneNo As String
    Dim _Mobile As String
    Dim _FaxNo As String
    Dim _Website As String
    Dim _Registration_Email As String

    Public Property Name As String
        Set(ByVal value As String)
            _Name = value
        End Set
        Get
            Return _Name
        End Get
    End Property
    Public Property Company As String
        Set(ByVal value As String)
            _Company = value
        End Set
        Get
            Return _Company
        End Get
    End Property
    Public Property Address1 As String
        Set(ByVal value As String)
            _Address1 = value
        End Set
        Get
            Return _Address1
        End Get
    End Property
    Public Property Address2 As String
        Set(ByVal value As String)
            _Address2 = value
        End Set
        Get
            Return _Address2
        End Get
    End Property
    Public Property City As String
        Set(ByVal value As String)
            _City = value
        End Set
        Get
            Return _City
        End Get
    End Property
    Public Property State As String
        Set(ByVal value As String)
            _State = value
        End Set
        Get
            Return _State
        End Get
    End Property
    Public Property Country As String
        Set(ByVal value As String)
            _Country = value
        End Set
        Get
            Return _Country
        End Get
    End Property
    Public Property Zip As String
        Set(ByVal value As String)
            _Zip = value
        End Set
        Get
            Return _Zip
        End Get
    End Property
    Public Property PhoneNo As String
        Set(ByVal value As String)
            _PhoneNo = value
        End Set
        Get
            Return _PhoneNo
        End Get
    End Property
    Public Property Mobile As String
        Set(ByVal value As String)
            _Mobile = value
        End Set
        Get
            Return _Mobile
        End Get
    End Property
    Public Property FaxNo As String
        Set(ByVal value As String)
            _FaxNo = value
        End Set
        Get
            Return _FaxNo
        End Get
    End Property
    Public Property Website As String
        Set(ByVal value As String)
            _Website = value
        End Set
        Get
            Return _Website
        End Get
    End Property
    Public Property Registration_Email As String
        Set(ByVal value As String)
            _Registration_Email = value
        End Set
        Get
            Return _Registration_Email
        End Get
    End Property

    Public Sub New()

    End Sub

    Public Sub New(ByVal Name As String, ByVal Company As String, ByVal Address1 As String, ByVal Address2 As String, ByVal City As String, ByVal State As String, ByVal Country As String, ByVal Zip As String, ByVal PhoneNo As String, ByVal Mobile As String, ByVal FaxNo As String, ByVal Website As String, ByVal Registration_Email As String)
        Me.Name = Name
        Me.Company = Company
        Me.Address1 = Address1
        Me.Address2 = Address2
        Me.City = City
        Me.State = State
        Me.Country = Country
        Me.Zip = Zip
        Me.PhoneNo = PhoneNo
        Me.FaxNo = FaxNo
        Me.Website = Website
        Me.Registration_Email = Registration_Email
    End Sub

End Class  

Dim profile As UserProfile = UserProfile.GetProfile(lblEmail.Text)
With profile.UserProfileInfo
    .Address1 = txtAddress1.Text
    .Address2 = txtAddress2.Text
    .City = txtCity.Text
    profile.Save()
End With

我的问题
上面的代码工作得很好。但问题是，如果我将连接字符串名称设置为我想要的任何名称，它会给出错误。更改连接字符串名称时，我还将配置文件提供程序的“connectionStringName”属性设置为新名称。ProfileBase类似乎只在connectionStringName设置为LocalSqlServer的情况下工作。我怎样才能解决这个问题

解决了它。在添加配置文件提供程序之前添加了

Dim profile As UserProfile = UserProfile.GetProfile(lblEmail.Text)
With profile.UserProfileInfo
    .Address1 = txtAddress1.Text
    .Address2 = txtAddress2.Text
    .City = txtCity.Text
    profile.Save()
End With

<providers>
  <clear />
  <add name="ProfileProvider" applicationname="delivermatic" connectionstringname="myCon" type="System.Web.Profile.SqlProfileProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
</providers>