Question

我正在使用DNN 9，我想发送带有附件文件的通知，但似乎DNN不允许这样做。

是否有一种方法（或任何解决方法）来做到这一点？

这是NotificationsController的DNN代码

这是我的代码，称为DNN代码

//...
Notification dnnNotification = new Notification
{
    NotificationTypeID = notification.NotificationTypeId,
    From = notification.From,
    Subject = notification.Subject,
    Body = notification.Body
};
NotificationsController.Instance.SendNotification(dnnNotification, portalId, dnnRoles, dnnUsers);

Answer 1

您无法将文件附加到DNN中的通知。但是，您可以将自定义通知操作添加到通知类型。这些操作会导致在通知下添加链接（例如默认的“ Dismiss”操作将通知标记为“已读”）。

为了发送通知，您需要创建一个NotificationType来关联它。 NotificationTypeAction被添加到类型中。因此，每当您发送某种类型的通知时，操作都会随之发生。

您可以创建一个NotificationTypeAction并将其命名为“ Download Attachment”。用户单击链接时，它将调用自定义api服务。该服务可以处理文件。

以下是一些示例代码，其中我通过1个自定义操作创建了一个自定义类型：

public void AddNotificationType()
{
    var actions = new List<NotificationTypeAction>();
    var deskModuleId = DesktopModuleController.GetDesktopModuleByFriendlyName(Constants.DESKTOPMODULE_FRIENDLYNAME).DesktopModuleID;

    var objNotificationType = new NotificationType
    {
        Name = Constants.NOTIFICATION_FILEDOWNLOAD,
        Description = "Get File Attachment",
        DesktopModuleId = deskModuleId
    };

    if (NotificationsController.Instance.GetNotificationType(objNotificationType.Name) == null)
    {
        var objAction = new NotificationTypeAction
        {
            NameResourceKey = "DownloadAttachment",
            DescriptionResourceKey = "DownloadAttachment_Desc",
            APICall = "DesktopModules/MyCustomModule/API/mynotification/downloadfile",
            Order = 1
        };
        actions.Add(objAction);

        NotificationsController.Instance.CreateNotificationType(objNotificationType);
        NotificationsController.Instance.SetNotificationTypeActions(actions, objNotificationType.NotificationTypeId);
    }
}

然后使用如下代码发送通知：

public void SendNotification(UserInfo userToReceive)
{
    // Get the notification type; if it doesn't exist, create it
    ModuleController mCtrl = new ModuleController();
    var itemAddedNType = NotificationsController.Instance.GetNotificationType(Constants.NOTIFICATION_FILEDOWNLOAD);
    if (itemAddedNType == null) 
    { 
        AddNotificationType();
        itemAddedNType = NotificationsController.Instance.GetNotificationType(Constants.NOTIFICATION_FILEDOWNLOAD);
    }


    if (itemAddedNType != null)
    {
        Notification msg = new Notification
        {
            NotificationTypeID = itemAddedNType.NotificationTypeId,
            Subject = "A file is ready to download.",
            Body = alertBody,
            ExpirationDate = DateTime.MaxValue,
            IncludeDismissAction = true,
        };

        List<UserInfo> sendUsers = new List<UserInfo>();
        sendUsers.Add(userToReceive);

        NotificationsController.Instance.SendNotification(msg, itemModule.PortalID, null, sendUsers);
    }
}

有关DNN通知的完整教程，我强烈建议您订阅DNNHero.com并观看此3部分系列文章，其中包含示例代码。

https://www.dnnhero.com/Premium/Tutorial/ArticleID/265/DNN-Notifications-Introduction-Part-1-3

DNN将文件附加到通知

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