Roles.Providers Property (System.Web.Security)

Switch View :

Classic

Lightweight

ScriptFree

Site Feedback

.NET Framework Class Library

Roles.Providers Property

Gets a collection of the role providers for the ASP.NET application.

Namespace: System.Web.Security
Assembly: System.Web (in System.Web.dll)

Syntax

Visual Basic

Public Shared ReadOnly Property Providers As RoleProviderCollection
	Get

public static RoleProviderCollection Providers { get; }

Visual C++

public:
static property RoleProviderCollection^ Providers {
	RoleProviderCollection^ get ();
}

static member Providers : RoleProviderCollection

Property Value

Type: System.Web.Security.RoleProviderCollection
A RoleProviderCollection that contains the role providers configured for the ASP.NET application.

Exceptions

Exception	Condition
System.Configuration.Provider.ProviderException	Role management is not enabled.

Remarks

The Providers property references all the role providers enabled for an application, including any providers added in the Web.config file. You can control which role providers are available for an application by using the providers element of the roleManager section in the Web.config file for your application.

The following example shows a roleManager section that removes any existing providers (such as those specified in the Machine.config file) and adds a SqlRoleProvider instance as the role provider for the application.

<configuration>
  <connectionStrings>
    <add name="SqlServices" connectionString="Data Source=MySqlServer;Integrated Security=SSPI;Initial Catalog=aspnetdb;" />
  </connectionStrings>

  <system.web>
    <roleManager defaultProvider="SqlProvider" 
      enabled="true"
      cacheRolesInCookie="true"
      cookieName=".ASPROLES"
      cookieTimeout="30"
      cookiePath="/"
      cookieRequireSSL="false"
      cookieSlidingExpiration="true"
      cookieProtection="Encrypted">

      <providers>
        <clear/>
        <add
          name="SqlProvider"
          type="System.Web.Security.SqlRoleProvider"
          connectionStringName="SqlServices"
          applicationName="MyApplication" />
         </providers>

    </roleManager>
  </system.web>
</configuration>

You can obtain a strongly typed reference to a provider from the Providers collection by indexing the role provider by name and casting it as the desired type.

You can obtain a reference to the default provider for an application using the Provider property.

Examples

The following code example lists the providers enabled for an application and their respective types.

Visual Basic


<%@ Page Language="VB" %>
<%@ Import Namespace="System.Web.Security" %>
<%@ Import Namespace="System.Configuration.Provider" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>List Enabled Providers</title>
</head>
<body>

<%
For Each p As RoleProvider In Roles.Providers
  Response.Write(p.Name & ", " & p.GetType().ToString() & "<br />")
Next
%>

</body>
</html>


<%@ Page Language="C#" %>
<%@ Import Namespace="System.Web.Security" %>
<%@ Import Namespace="System.Configuration.Provider" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>List Enabled Providers</title>
</head>
<body>

<%
foreach (RoleProvider p in Roles.Providers)
  Response.Write(p.Name + ", " + p.GetType() + "<br />");
%>

</body>
</html>

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

Roles Class

System.Web.Security Namespace

Other Resources

Understanding Role Management