AuthorizationStoreRoleProvider.GetUsersInRole(String) Método

Definição

Obtém uma lista de usuários na função especificada.Gets a list of users in the specified role.

public:
 override cli::array <System::String ^> ^ GetUsersInRole(System::String ^ roleName);
public override string[] GetUsersInRole (string roleName);
override this.GetUsersInRole : string -> string[]
Public Overrides Function GetUsersInRole (roleName As String) As String()

Parâmetros

roleName
String

O nome da função para a qual a lista de usuários será obtida.The name of the role to get the list of users for.

Retornos

String[]

Uma matriz de cadeia de caracteres que contém os nomes de todos os usuários que são membros da função especificada.A string array containing the names of all the users who are members of the specified role.

Exceções

roleName é null.roleName is null.

roleName é uma cadeia de caracteres vazia.roleName is an empty string.

- ou --or- roleName contém uma vírgula.roleName contains a comma.

O applicationName configurado não foi encontrado.The configured applicationName was not found.

- ou --or- O scopeName configurado não foi encontrado.The configured scopeName was not found.

- ou --or- O runtime do gerenciador de autorização não está instalado no servidor.The authorization-manager runtime is not installed on the server.

O atributo connectionStringName faz referência a uma cadeia de conexão para um arquivo que não existe.The connectionStringName attribute references a connection string to a file that does not exist.

A instância AuthorizationStoreRoleProvider está configurada com um repositório de políticas com base em arquivo e o acesso de leitura para o arquivo não é permitido no nível de confiança atual.The AuthorizationStoreRoleProvider instance is configured with a file-based policy store, and read access to the file is not allowed at the current trust level.

Exemplos

O exemplo de código a seguir usa o GetUsersInRole método para obter uma lista dos usuários em uma função específica e associar os resultados a um System.Web.UI.WebControls.GridView controle.The following code example uses the GetUsersInRole method to get a list of the users in a particular role and bind the results to a System.Web.UI.WebControls.GridView control. Para obter um exemplo de um arquivo de Web.config que habilita o gerenciamento de função, consulte AuthorizationStoreRoleProvider .For an example of a Web.config file that enables role management, see AuthorizationStoreRoleProvider.


<%@ Page Language="C#" %>

<%@ Import Namespace="System.Web.Security" %>
<%@ Import Namespace="System.Web.UI" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

  string[] rolesArray;
  MembershipUserCollection users;
  string[] usersInRole;

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

    if (!IsPostBack)
    {
      // Bind roles to ListBox.

      rolesArray = Roles.GetAllRoles();
      RolesListBox.DataSource = rolesArray;
      RolesListBox.DataBind();

      // Bind users to ListBox.

      users = Membership.GetAllUsers();
      UsersListBox.DataSource = users;
      UsersListBox.DataBind();
    }

    if (RolesListBox.SelectedItem != null)
    {
      // Show users in role. Bind user list to GridView.

      usersInRole = Roles.GetUsersInRole(RolesListBox.SelectedItem.Value);
      UsersInRoleGrid.DataSource = usersInRole;
      UsersInRoleGrid.DataBind();
    }
  }


  public void AddUsers_OnClick(object sender, EventArgs args)
  {
    // Verify that a role is selected.

    if (RolesListBox.SelectedItem == null)
    {
      Msg.Text = "Please select a role.";
      return;
    }


    // Verify that at least one user is selected.

    if (UsersListBox.SelectedItem == null)
    {
      Msg.Text = "Please select one or more users.";
      return;
    }


    // Create list of users to be added to the selected role.

    string[] newusers = new string[UsersListBox.GetSelectedIndices().Length];

    for (int i = 0; i < newusers.Length; i++)
    {
      newusers[i] = UsersListBox.Items[UsersListBox.GetSelectedIndices()[i]].Value;
    }


    // Add the users to the selected role.

    try
    {
      Roles.AddUsersToRole(newusers, RolesListBox.SelectedItem.Value);

      // Re-bind users in role to GridView.

      usersInRole = Roles.GetUsersInRole(RolesListBox.SelectedItem.Value);
      UsersInRoleGrid.DataSource = usersInRole;
      UsersInRoleGrid.DataBind();
    }
    catch (Exception e)
    {
      Msg.Text = e.Message;
    }
  }


  public void UsersInRoleGrid_RemoveFromRole(object sender, GridViewCommandEventArgs args)
  {
    // Get the selected user name to remove.

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

    string username = ((DataBoundLiteralControl)UsersInRoleGrid.Rows[index].Cells[0].Controls[0]).Text;


    // Remove the user from the selected role.

    try
    {
      Roles.RemoveUserFromRole(username, RolesListBox.SelectedItem.Value);
    }
    catch (Exception e)
    {
      Msg.Text = "An exception of type " + e.GetType().ToString() +
                 " was encountered removing the user from the role.";
    }


    // Re-bind users in role to GridView.

    usersInRole = Roles.GetUsersInRole(RolesListBox.SelectedItem.Value);
    UsersInRoleGrid.DataSource = usersInRole;
    UsersInRoleGrid.DataBind();
  }



</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
  <title>Sample: Role Membership</title>
</head>
<body>
  <form runat="server" id="PageForm">
    <h3>
      Role Membership</h3>
    <asp:Label ID="Msg" ForeColor="maroon" runat="server" /><br />
    <table cellpadding="3" border="0">
      <tr>
        <td valign="top">
          Roles:</td>
        <td valign="top">
          <asp:ListBox ID="RolesListBox" runat="server" Rows="8" AutoPostBack="true" /></td>
        <td valign="top">
          Users:</td>
        <td valign="top">
          <asp:ListBox ID="UsersListBox" DataTextField="Username" Rows="8" SelectionMode="Multiple"
            runat="server" /></td>
        <td valign="top">
          <asp:Button Text="Add User(s) to Role" ID="AddUsersButton" runat="server" OnClick="AddUsers_OnClick" /></td>
      </tr>
      <tr>
        <td valign="top">
          Users In Role:</td>
        <td valign="top">
          <asp:GridView runat="server" CellPadding="4" ID="UsersInRoleGrid" AutoGenerateColumns="false"
            GridLines="None" CellSpacing="0" OnRowCommand="UsersInRoleGrid_RemoveFromRole">
            <HeaderStyle BackColor="navy" ForeColor="white" />
            <Columns>
              <asp:TemplateField HeaderText="User Name" >
                <ItemTemplate>
                  <%# Container.DataItem.ToString() %>
                </ItemTemplate>
              </asp:TemplateField>
              <asp:ButtonField Text="Remove From Role" ButtonType="Link" />
            </Columns>
          </asp:GridView>
        </td>
      </tr>
    </table>
  </form>
</body>
</html>

<%@ Page Language="VB" %>

<%@ Import Namespace="System.Web.Security" %>
<%@ Import Namespace="System.Web.UI" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

  Dim rolesArray() As String
  Dim users As MembershipUserCollection
  Dim usersInRole() As String

  Public Sub Page_Load()

    Msg.Text = ""

    If Not IsPostBack Then
      ' Bind roles to ListBox.

      rolesArray = Roles.GetAllRoles()
      RolesListBox.DataSource = rolesArray
      RolesListBox.DataBind()

      ' Bind users to ListBox.

      users = Membership.GetAllUsers()
      UsersListBox.DataSource = users
      UsersListBox.DataBind()
    End If

    If Not RolesListBox.SelectedItem Is Nothing Then
      ' Show users in role. Bind user list to GridView.

      usersInRole = Roles.GetUsersInRole(RolesListBox.SelectedItem.Value)
      UsersInRoleGrid.DataSource = usersInRole
      UsersInRoleGrid.DataBind()
    End If

  End Sub


  Public Sub AddUsers_OnClick(ByVal sender As Object, ByVal args As EventArgs)

    ' Verify that a role is selected.

    If RolesListBox.SelectedItem Is Nothing Then
      Msg.Text = "Please select a role."
      Return
    End If


    ' Verify that at least one user is selected.

    If UsersListBox.SelectedItem Is Nothing Then
      Msg.Text = "Please select one or more users."
      Return
    End If


    ' Create list of users to be added to the selected role.

    Dim newusers(UsersListBox.GetSelectedIndices().Length - 1) As String

    For i As Integer = 0 To newusers.Length - 1
      newusers(i) = UsersListBox.Items(UsersListBox.GetSelectedIndices(i)).Value
    Next


    ' Add the users to the selected role.

    Try
      Roles.AddUsersToRole(newusers, RolesListBox.SelectedItem.Value)

      ' Re-bind users in role to GridView.

      usersInRole = Roles.GetUsersInRole(RolesListBox.SelectedItem.Value)
      UsersInRoleGrid.DataSource = usersInRole
      UsersInRoleGrid.DataBind()
    Catch e As Exception
      Msg.Text = e.Message
    End Try

  End Sub


  Public Sub UsersInRoleGrid_RemoveFromRole(ByVal sender As Object, ByVal args As GridViewCommandEventArgs)

    ' Get the selected user name to remove.

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

    Dim username As String = (CType(UsersInRoleGrid.Rows(index).Cells(0).Controls(0), DataBoundLiteralControl)).Text


    ' Remove the user from the selected role.

    Try
      Roles.RemoveUserFromRole(username, RolesListBox.SelectedItem.Value)
    Catch e As Exception
      Msg.Text = "An exception of type " & e.GetType().ToString() & _
                 " was encountered removing the user from the role."
    End Try

    ' Re-bind users in role to GridView.

    usersInRole = Roles.GetUsersInRole(RolesListBox.SelectedItem.Value)
    UsersInRoleGrid.DataSource = usersInRole
    UsersInRoleGrid.DataBind()

  End Sub



</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
  <title>Sample: Role Membership</title>
</head>
<body>
  <form runat="server" id="PageForm">
    <h3>
      Role Membership</h3>
    <asp:Label ID="Msg" ForeColor="maroon" runat="server" /><br />
    <table cellpadding="3" border="0">
      <tr>
        <td valign="top">
          Roles:</td>
        <td valign="top">
          <asp:ListBox ID="RolesListBox" runat="server" Rows="8" AutoPostBack="true" /></td>
        <td valign="top">
          Users:</td>
        <td valign="top">
          <asp:ListBox ID="UsersListBox" DataTextField="Username" Rows="8" SelectionMode="Multiple"
            runat="server" /></td>
        <td valign="top">
          <asp:Button Text="Add User(s) to Role" ID="AddUsersButton" runat="server" OnClick="AddUsers_OnClick" /></td>
      </tr>
      <tr>
        <td valign="top">
          Users In Role:</td>
        <td valign="top">
          <asp:GridView runat="server" CellPadding="4" ID="UsersInRoleGrid" AutoGenerateColumns="false"
            GridLines="None" CellSpacing="0" OnRowCommand="UsersInRoleGrid_RemoveFromRole">
            <HeaderStyle BackColor="navy" ForeColor="white" />
            <Columns>
              <asp:TemplateField HeaderText="User Name" >
                <ItemTemplate>
                  <%# Container.DataItem.ToString() %>
                </ItemTemplate>
              </asp:TemplateField>
              <asp:ButtonField Text="Remove From Role" ButtonType="Link" />
            </Columns>
          </asp:GridView>
        </td>
      </tr>
    </table>
  </form>
</body>
</html>

Comentários

O GetUsersInRole método é chamado pela Roles classe para recuperar a lista de usuários associados à função especificada no repositório de políticas do Gerenciador de autorização especificado no arquivo de configuração do aplicativo ASP.NET (Web.config).The GetUsersInRole method is called by the Roles class to retrieve the list of users associated with the specified role in the authorization-manager policy store specified in the ASP.NET application's configuration file (Web.config).

O GetUsersInRole método retorna apenas os nomes de usuário que estão diretamente contidos na função de Gerenciador de autorização especificada pelo roleName parâmetro.The GetUsersInRole method only returns user names that are directly contained in the authorization-manager role specified by the roleName parameter. A API subjacente do Gerenciador de autorização chamada pelo GetUsersInRole método não oferece suporte à expansão de grupo, de modo que os usuários contidos em grupos NT aninhados, grupos de gerenciadores de autorização aninhados e grupos de consulta LDAP não serão retornados.The underlying authorization-manager API called by the GetUsersInRole method does not support group expansion, so users contained in nested NT groups, nested authorization-manager groups, and LDAP query groups will not be returned.

Aplica-se a