SqlProfileProvider.DeleteInactiveProfiles Metodo

  • Riferimento

Definizione

Spazio dei nomi:
System.Web.Profile
Assembly:
System.Web.dll

Elimina i dati dei profili utente in cui la data dell'ultima attività è precedente alla data e all'ora specificate.

public:
 override int DeleteInactiveProfiles(System::Web::Profile::ProfileAuthenticationOption authenticationOption, DateTime userInactiveSinceDate);
public override int DeleteInactiveProfiles (System.Web.Profile.ProfileAuthenticationOption authenticationOption, DateTime userInactiveSinceDate);
override this.DeleteInactiveProfiles : System.Web.Profile.ProfileAuthenticationOption * DateTime -> int
Public Overrides Function DeleteInactiveProfiles (authenticationOption As ProfileAuthenticationOption, userInactiveSinceDate As DateTime) As Integer

Parametri

authenticationOption
ProfileAuthenticationOption

Uno dei valori dell'enumerazione ProfileAuthenticationOption che specifica se vengono eliminati profili di tipo anonimo, autenticato o entrambi.

userInactiveSinceDate
DateTime

Oggetto DateTime che identifica i profili utente considerati inattivi. Se il valore specificato nella proprietà LastActivityDate di un profilo utente corrisponde o è precedente alla data e all'ora specificate in questo parametro, il profilo viene considerato inattivo.

Restituisce

Int32

Il numero di profili eliminati dall'origine dati.

Esempio

Nell'esempio di codice seguente viene illustrata una pagina ASP.NET che gestisce i profili inattivi. Viene fornito un pulsante per eliminare tutti i profili a cui non è stato eseguito l'accesso dopo la data specificata per considerare un profilo inattivo.

<%@ Page Language="C#" %>
<%@ Import Namespace="System.Web.Profile" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

int pageSize = 5;
int totalProfiles;
int totalPages;
int currentPage = 1;

SqlProfileProvider provider;
ProfileAuthenticationOption authOption;
int inactiveDays = 120;
int deletedProfiles = 0;

public void Page_Load()
{
  DeletedMessage.Text = "";

  provider = (SqlProfileProvider)Profile.Providers["SqlProvider"];

  authOption = GetAuthenticationOption();

  if (!IsPostBack)
  {
    InactiveDaysTextBox.Text = inactiveDays.ToString();

    GetProfiles();
  }
  else
  {
    inactiveDays = Convert.ToInt32(InactiveDaysTextBox.Text);
  }
}

public void ProfileGrid_Delete(object sender, GridViewCommandEventArgs args)
{
  // Retrieve user name selected.

  int index = Convert.ToInt32(args.CommandArgument);

  string username = ProfileGrid.Rows[index].Cells[0].Text;

  provider.DeleteProfiles(new string[] {username});

  DeletedMessage.Text = "1 profile deleted.";

  // Refresh profile list.

  currentPage = Convert.ToInt32(CurrentPageLabel.Text);
  GetProfiles();
}


private void GetProfiles()
{
  ProfileGrid.DataSource = provider.GetAllInactiveProfiles(authOption,
                             DateTime.Now.Subtract(new TimeSpan(inactiveDays, 0, 0, 0)),
                             currentPage - 1, pageSize, out totalProfiles);

  TotalProfilesLabel.Text = totalProfiles.ToString();

  totalPages = ((totalProfiles - 1) / pageSize) + 1;

  // Ensure that we do not navigate past the last page of Profiles.

  if (currentPage > totalPages)
  {
    currentPage = totalPages;
    GetProfiles();
    return;
  }

  ProfileGrid.DataBind();
  CurrentPageLabel.Text = currentPage.ToString();
  TotalPagesLabel.Text = totalPages.ToString();

  if (currentPage == totalPages)
    NextButton.Visible = false;
  else
    NextButton.Visible = true;

  if (currentPage == 1)
    PreviousButton.Visible = false;
  else
    PreviousButton.Visible = true;

  if (totalProfiles <= 0)
    NavigationPanel.Visible = false;
  else
    NavigationPanel.Visible = true;
}

public void NextButton_OnClick(object sender, EventArgs args)
{
  currentPage = Convert.ToInt32(CurrentPageLabel.Text);
  currentPage++;
  GetProfiles();
}

public void PreviousButton_OnClick(object sender, EventArgs args)
{
  currentPage = Convert.ToInt32(CurrentPageLabel.Text);
  currentPage--;
  GetProfiles();
}

public void ModifyInactiveDaysButton_OnClick(object sender, EventArgs args)
{
  GetProfiles();
}

public void AuthenticationOptionListBox_OnSelectedIndexChanged(object sender, EventArgs args)
{
  authOption = GetAuthenticationOption();
  GetProfiles();
}

private ProfileAuthenticationOption GetAuthenticationOption()
{
  if (AuthenticationOptionListBox.SelectedItem != null)
  {
    switch (AuthenticationOptionListBox.SelectedItem.Value)
    {
      case "Anonymous":
        return ProfileAuthenticationOption.Anonymous;
        break;
      case "Authenticated":
        return ProfileAuthenticationOption.Authenticated;
        break;
      default:
        return ProfileAuthenticationOption.All;
        break;
    }
  }

  return ProfileAuthenticationOption.All;
}

public void DeleteAllInactiveButton_OnClick(object sender, EventArgs args)
{
  deletedProfiles = provider.DeleteInactiveProfiles(authOption, 
                      DateTime.Now.Subtract(new TimeSpan(inactiveDays, 0, 0 ,0)));
  DeletedMessage.Text = deletedProfiles.ToString() + " profiles deleted.";
  GetProfiles();
}

</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Sample: Find Profiles</title>
</head>
<body>

<form id="form1" runat="server">
  <h3>Profile List</h3>

  <table border="0" cellpadding="3" cellspacing="3">
    <tr>
      <td valign="top">Authentication Option</td>
      <td valign="top"><asp:ListBox id="AuthenticationOptionListBox" rows="3" runat="Server"
                                    AutoPostBack="true"
                                    OnSelectedIndexChanged="AuthenticationOptionListBox_OnSelectedIndexChanged">
                         <asp:ListItem value="All" selected="True">All</asp:ListItem>
                         <asp:ListItem value="Authenticated">Authenticated</asp:ListItem>
                         <asp:ListItem value="Anonymous">Anonymous</asp:ListItem>
                       </asp:ListBox>
      </td>
    </tr>
    <tr>
      <td valign="top" style="width:160">
        Number of Days for Profile to be considered "inactive"</td>
      <td valign="top" style="width:200">
        <asp:TextBox id="InactiveDaysTextBox" runat="Server" MaxLength="3" Columns="3" />
        <asp:Button id="ModifyInactiveDaysButton" runat="server" Text="Refresh Results" 
           OnClick="ModifyInactiveDaysButton_OnClick" /><br />
        <asp:Button id="DeleteAllInactiveButton" runat="Server"
           Text="Delete All Inactive Profiles" OnClick="DeleteAllInactiveButton_OnClick" />
      </td>
      <td valign="top">
        <asp:RequiredFieldValidator id="InactiveDaysRequiredValidator" runat="server"
           ControlToValidate="InactiveDaysTextBox" ForeColor="red"
           Display="Static" ErrorMessage="Required" />
        <asp:RegularExpressionValidator id="InactiveDaysValidator" runat="server"
           ControlToValidate="InactiveDaysTextBox" ForeColor="red"
           Display="Static" ValidationExpression="[0-9]*" 
           ErrorMessage="Inactive Days must be a whole number less than 1000 (e.g. 30, 120)" />
     </td>
    </tr>
    <tr>
      <td><asp:Label id="DeletedMessage" runat="server" /></td>
      <td><asp:Label id="TotalProfilesLabel" runat="server" /> inactive profiles found.</td>
    </tr>
  </table>

    <asp:Panel id="NavigationPanel" Visible="false" runat="server">
    <table border="0" cellpadding="3" cellspacing="3">
      <tr>
        <td style="width:100">Page <asp:Label id="CurrentPageLabel" runat="server" />
            of <asp:Label id="TotalPagesLabel" runat="server" /></td>
        <td style="width:60"><asp:LinkButton id="PreviousButton" Text="< Prev"
                            OnClick="PreviousButton_OnClick" runat="server" /></td>
        <td style="width:60"><asp:LinkButton id="NextButton" Text="Next >"
                            OnClick="NextButton_OnClick" runat="server" /></td>
      </tr>
    </table>
  </asp:Panel>

  <asp:GridView id="ProfileGrid" runat="server" AutoGenerateColumns="false"
                OnRowCommand="ProfileGrid_Delete"
                CellPadding="2" CellSpacing="1" Gridlines="None">
    <HeaderStyle BackColor="darkblue" ForeColor="white" />
    <Columns>
      <asp:BoundField HeaderText="User Name" DataField="Username" />
      <asp:BoundField HeaderText="Is Anonymous" DataField="IsAnonymous" />
      <asp:BoundField HeaderText="Last Updated" DataField="LastUpdatedDate" />
      <asp:BoundField HeaderText="Last Activity" DataField="LastActivityDate" />
      <asp:ButtonField HeaderText="Action" Text="Delete" ButtonType="Link" />
    </Columns>
  </asp:GridView>

</form>

</body>
</html>

<%@ Page Language="VB" %>
<%@ Import Namespace="System.Web.Profile" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

Dim pageSize As Integer = 5
Dim totalProfiles As Integer 
Dim totalPages As Integer
Dim currentPage As Integer = 1

Dim provider As SqlProfileProvider
Dim authOption As ProfileAuthenticationOption
Dim inactiveDays As Integer = 120
Dim deletedProfiles As Integer = 0

Public Sub Page_Load()

  DeletedMessage.Text = ""

  provider = CType(Profile.Providers("SqlProvider"), SqlProfileProvider)

  authOption = GetAuthenticationOption()

  If Not IsPostBack Then  
    InactiveDaysTextBox.Text = inactiveDays.ToString()

    GetProfiles()
  Else
    inactiveDays = Convert.ToInt32(InactiveDaysTextBox.Text)
  End If
End Sub

Public Sub ProfileGrid_Delete(sender As Object, args As GridViewCommandEventArgs)
  ' Retrieve user name selected.

  Dim index As Integer = Convert.ToInt32(args.CommandArgument)

  Dim username As String = ProfileGrid.Rows(index).Cells(0).Text

  provider.DeleteProfiles(New string() {username})

  DeletedMessage.Text = "1 profile deleted."

  ' Refresh profile list.

  currentPage = Convert.ToInt32(CurrentPageLabel.Text)
  GetProfiles()
End Sub


Private Sub GetProfiles()
  ProfileGrid.DataSource = provider.GetAllInactiveProfiles(authOption, _
                             DateTime.Now.Subtract(New TimeSpan(inactiveDays, 0, 0, 0)), _
                             currentPage - 1, pageSize, totalProfiles)

  TotalProfilesLabel.Text = totalProfiles.ToString()

  totalPages = ((totalProfiles - 1) \ pageSize) + 1

  ' Ensure that we do not navigate past the last page of Profiles.

  If currentPage > totalPages Then  
    currentPage = totalPages
    GetProfiles()
    Return
  End If

  ProfileGrid.DataBind()
  CurrentPageLabel.Text = currentPage.ToString()
  TotalPagesLabel.Text = totalPages.ToString()

  If currentPage = totalPages Then
    NextButton.Visible = False
  Else
    NextButton.Visible = True
  End If

  If currentPage = 1 Then
    PreviousButton.Visible = False
  Else
    PreviousButton.Visible = True
  End If

  If totalProfiles <= 0 Then
    NavigationPanel.Visible = False
  Else
    NavigationPanel.Visible = True
  End If
End Sub

Public Sub NextButton_OnClick(sender As Object, args As EventArgs)
  currentPage = Convert.ToInt32(CurrentPageLabel.Text)
  currentPage += 1
  GetProfiles()
End Sub

Public Sub PreviousButton_OnClick(sender As Object, args As EventArgs)
  currentPage = Convert.ToInt32(CurrentPageLabel.Text)
  currentPage -= 1
  GetProfiles()
End Sub

Public Sub ModifyInactiveDaysButton_OnClick(sender As Object, args As EventArgs)
  GetProfiles()
End Sub

Public Sub AuthenticationOptionListBox_OnSelectedIndexChanged(sender As Object, args As EventArgs)
  authOption = GetAuthenticationOption()
  GetProfiles()
End Sub

Private Function GetAuthenticationOption() As ProfileAuthenticationOption 
  If Not AuthenticationOptionListBox.SelectedItem Is Nothing Then  
    Select Case AuthenticationOptionListBox.SelectedItem.Value
      Case "Anonymous"
        Return ProfileAuthenticationOption.Anonymous
      Case "Authenticated"
        return ProfileAuthenticationOption.Authenticated
      Case Else
        Return ProfileAuthenticationOption.All
    End Select
  End If

  Return ProfileAuthenticationOption.All
End Function

Public Sub DeleteAllInactiveButton_OnClick(sender As Object, args As EventArgs)
  deletedProfiles = provider.DeleteInactiveProfiles(authOption, _
                      DateTime.Now.Subtract(new TimeSpan(inactiveDays, 0, 0 ,0)))
  DeletedMessage.Text = deletedProfiles.ToString() & " profiles deleted."
  GetProfiles()
End SUb

</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Sample: Find Profiles</title>
</head>
<body>

<form id="form1" runat="server">
  <h3>Profile List</h3>

  <table border="0" cellpadding="3" cellspacing="3">
    <tr>
      <td valign="top">Authentication Option</td>
      <td valign="top"><asp:ListBox id="AuthenticationOptionListBox" rows="3" runat="Server"
                                    AutoPostBack="True"
                                    OnSelectedIndexChanged="AuthenticationOptionListBox_OnSelectedIndexChanged">
                         <asp:ListItem value="All" selected="True">All</asp:ListItem>
                         <asp:ListItem value="Authenticated">Authenticated</asp:ListItem>
                         <asp:ListItem value="Anonymous">Anonymous</asp:ListItem>
                       </asp:ListBox>
      </td>
    </tr>
    <tr>
      <td valign="top" style="width:160">
        Number of Days for Profile to be considered "inactive"</td>
      <td valign="top" style="width:200">
        <asp:TextBox id="InactiveDaysTextBox" runat="Server" MaxLength="3" Columns="3" />
        <asp:Button id="ModifyInactiveDaysButton" runat="server" Text="Refresh Results" 
           OnClick="ModifyInactiveDaysButton_OnClick" /><br />
        <asp:Button id="DeleteAllInactiveButton" runat="Server"
           Text="Delete All Inactive Profiles" OnClick="DeleteAllInactiveButton_OnClick" />
      </td>
      <td valign="top">
        <asp:RequiredFieldValidator id="InactiveDaysRequiredValidator" runat="server"
           ControlToValidate="InactiveDaysTextBox" ForeColor="red"
           Display="Static" ErrorMessage="Required" />
        <asp:RegularExpressionValidator id="InactiveDaysValidator" runat="server"
           ControlToValidate="InactiveDaysTextBox" ForeColor="red"
           Display="Static" ValidationExpression="[0-9]*" 
           ErrorMessage="Inactive Days must be a whole number less than 1000 (e.g. 30, 120)" />
     </td>
    </tr>
    <tr>
      <td><asp:Label id="DeletedMessage" runat="server" /></td>
      <td><asp:Label id="TotalProfilesLabel" runat="server" /> inactive profiles found.</td>
    </tr>
  </table>

    <asp:Panel id="NavigationPanel" Visible="False" runat="server">
    <table border="0" cellpadding="3" cellspacing="3">
      <tr>
        <td style="width:100">Page <asp:Label id="CurrentPageLabel" runat="server" />
            of <asp:Label id="TotalPagesLabel" runat="server" /></td>
        <td style="width:60"><asp:LinkButton id="PreviousButton" Text="< Prev"
                            OnClick="PreviousButton_OnClick" runat="server" /></td>
        <td style="width:60"><asp:LinkButton id="NextButton" Text="Next >"
                            OnClick="NextButton_OnClick" runat="server" /></td>
      </tr>
    </table>
  </asp:Panel>

  <asp:GridView id="ProfileGrid" runat="server" AutoGenerateColumns="False"
                OnRowCommand="ProfileGrid_Delete"
                CellPadding="2" CellSpacing="1" Gridlines="None">
    <HeaderStyle BackColor="darkblue" ForeColor="white" />
    <Columns>
      <asp:BoundField HeaderText="User Name" DataField="Username" />
      <asp:BoundField HeaderText="Is Anonymous" DataField="IsAnonymous" />
      <asp:BoundField HeaderText="Last Updated" DataField="LastUpdatedDate" />
      <asp:BoundField HeaderText="Last Activity" DataField="LastActivityDate" />
      <asp:ButtonField HeaderText="Action" Text="Delete" ButtonType="Link" />
    </Columns>
  </asp:GridView>

</form>

</body>
</html>

Commenti

Il DeleteInactiveProfiles metodo viene usato per rimuovere i dati del profilo inutilizzati dall'origine dati per l'applicazione specificata dall'attributo applicationName nel file di configurazione. Usare il authenticationOption parametro per specificare se si desidera eseguire la ricerca solo profili anonimi, solo profili autenticati o tutti i profili. Dei profili di ricerca, qualsiasi profilo con un LastActivityDate oggetto che si verifica in o prima dell'eliminazione del valore del parametro specificato userInactiveSinceDate .

Gli aggiornamenti del database eseguiti durante la chiamata al DeleteInactiveProfiles metodo vengono eseguiti all'interno di una transazione. Se viene rilevato un errore, la transazione viene eseguito il rollback e non vengono eseguiti aggiornamenti.

Si applica a

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