Roles.AddUserToRoles(String, String[]) 方法

參考

定義

命名空間:: System.Web.Security

組件:: System.Web.dll

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

將指定的使用者加入指定的角色。

public:
 static void AddUserToRoles(System::String ^ username, cli::array <System::String ^> ^ roleNames);

public static void AddUserToRoles (string username, string[] roleNames);

static member AddUserToRoles : string * string[] -> unit

Public Shared Sub AddUserToRoles (username As String, roleNames As String())

參數

username: String

要加入指定角色的使用者名稱。

roleNames: String[]

要加入指定使用者名稱之角色的字串陣列。

例外狀況

ArgumentNullException

roleNames 的其中一個角色為 null。

-或-

username 為 null。

ArgumentException

roleNames 的其中一個角色是空字串，或包含逗號 (,)。

-或-

username 是空字串，或包含逗號 (,)。

-或-

roleNames 包含重複的項目。

ProviderException

未啟用角色管理。

範例

下列程式代碼範例會將使用者新增至一或多個角色。如需啟用角色管理的 Web.config 檔案範例，請參閱 Roles。

<%@ 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;

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();
  }
}


public void AddUser_OnClick(object sender, EventArgs args)
{
  // Verify that a user and at least one role is selected.

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

  int[] role_indices = RolesListBox.GetSelectedIndices();

  if (role_indices.Length == 0)
  {
    Msg.Text = "Please select one or more roles.";
    return;
  }


  // Create list of roles to be add the selected users to.

  string[] rolesList = new string[role_indices.Length];

  for (int i = 0; i < rolesList.Length; i++)
  {
    rolesList[i] = RolesListBox.Items[role_indices[i]].Value;
  }


  // Add the users to the selected role.

  try
  {
    Roles.AddUserToRoles(UsersListBox.SelectedItem.Value, rolesList);  
    Msg.Text = "User added to Role(s).";
  }
  catch (HttpException e)
  {
    Msg.Text = e.Message;
  } 
}

</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" SelectionMode="Multiple"
                                    Rows="8" /></td>
      <td valign="top">Users:</td>
      <td valign="top"><asp:ListBox id="UsersListBox" DataTextField="Username" 
                                  Rows="8" runat="server" /></td>
      <td valign="top"><asp:Button Text="Add User to Role(s)" id="AddUserButton"
                                 runat="server" OnClick="AddUser_OnClick" /></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

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
End Sub


Public Sub AddUser_OnClick(sender As Object, args As EventArgs)

  ' Verify that a user and at least one role are selected.

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

  Dim role_indices() As Integer = RolesListBox.GetSelectedIndices()

  If role_indices.Length = 0 Then
    Msg.Text = "Please select one or more roles."
    Return
  End If


  ' Create list of roles to be add the selected users to.

  Dim rolesList(role_indices.Length - 1) As String

  For i As Integer = 0 To rolesList.Length - 1
    rolesList(i) = RolesListBox.Items(role_indices(i)).Value
  Next


  ' Add the users to the selected role.

  Try
    Roles.AddUserToRoles(UsersListBox.SelectedItem.Value, rolesList)
    Msg.Text = "User added to Role(s)."
  Catch e As HttpException
    Msg.Text = e.Message
  End Try
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" SelectionMode="Multiple"
                                    Rows="8" /></td>
      <td valign="top">Users:</td>
      <td valign="top"><asp:ListBox id="UsersListBox" DataTextField="Username" 
                                  Rows="8" runat="server" /></td>
      <td valign="top"><asp:Button Text="Add User to Role(s)" id="AddUserButton"
                                 runat="server" OnClick="AddUser_OnClick" /></td>
    </tr>
  </table>
</form>

</body>
</html>

備註

方法 AddUserToRoles 會呼叫預設角色提供者，以將指定的使用者與數據源上的指定角色產生關聯。

如果您的應用程式使用 SqlRoleProvider 類別，則會在交易內對方法的呼叫 AddUserToRoles 期間執行的資料庫更新。如果發生錯誤，例如已在指定角色中的用戶名稱，則會回復交易，而且不會執行任何更新。

注意

用戶名稱和角色名稱不能包含逗號。

適用於

另請參閱

瞭解角色管理 ASP.NET

共用方式為

Roles.AddUserToRoles(String, String[]) 方法

定義

參數

例外狀況

範例

備註

適用於

另請參閱

其他資源