SelectingProviderEventArgs.ProviderName 属性
定义
获取或设置用于检索用户角色的角色提供程序。Gets or sets the role provider to use for retrieving the user's roles.
public:
property System::String ^ ProviderName { System::String ^ get(); void set(System::String ^ value); };
public string ProviderName { get; set; }
member this.ProviderName : string with get, set
Public Property ProviderName As String
属性值
用于获取用户角色的角色提供程序的名称。The name of the role provider that is used to get the user's roles.
示例
下面的示例演示事件的事件处理程序 SelectingProvider 。The following example shows an event handler for the SelectingProvider event. 事件处理程序使用 SelectingProviderEventArgs 对象检查用户名并设置要使用的角色提供程序。The event handler uses the SelectingProviderEventArgs object to check the user name and to set the role provider to use. 事件处理程序绑定到 SelectingProvider global.asax 文件的方法中的事件 Application_Start 。The event handler is bound to the SelectingProvider event in the Application_Start method of the Global.asax file.
void Application_Start(object sender, EventArgs e)
{
System.Web.ApplicationServices.RoleService.SelectingProvider +=
new EventHandler<System.Web.ApplicationServices.SelectingProviderEventArgs>(RoleService_SelectingProvider);
}
void RoleService_SelectingProvider
(object sender, System.Web.ApplicationServices.SelectingProviderEventArgs e)
{
if (e.User.Identity.Name.IndexOf("@example.com") > 0)
{
e.ProviderName = "EmployeeRoleProvider";
}
else
{
e.ProviderName = "CustomerRoleProvider";
}
}
Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)
AddHandler System.Web.ApplicationServices.RoleService.SelectingProvider, _
AddressOf Me.RoleService_SelectingProvider
End Sub
Sub RoleService_SelectingProvider _
(ByVal sender As Object, _
ByVal e As System.Web.ApplicationServices.SelectingProviderEventArgs)
If (e.User.Identity.Name.IndexOf("@example.com") > 0) Then
e.ProviderName = "EmployeeRoleProvider"
Else
e.ProviderName = "CustomerRoleProvider"
End If
End Sub
注解
在 ProviderName 事件期间使用属性设置角色提供程序 SelectingProvider 。You use the ProviderName property to set the role provider during the SelectingProvider event.