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SPAlert class

代表會產生定期的電子郵件或短訊息服務 (SMS) 通知傳送給使用者清單、 清單項目、 文件或警示所套用的文件庫的相關警示。

Inheritance hierarchy

System.Object
  Microsoft.SharePoint.SPAlert

Namespace:  Microsoft.SharePoint
Assembly:  Microsoft.SharePoint (in Microsoft.SharePoint.dll)

Syntax

'宣告
Public NotInheritable Class SPAlert
'用途
Dim instance As SPAlert
public sealed class SPAlert

備註

SPAlert提供資訊警示,例如使用哪一警示的範本時,提醒的頻率,並建立提醒的使用者UserID 。

使用的SPUserSPWeb類別的Alerts屬性,傳回SPAlertCollection物件,表示集合的使用者或網站的提醒。若要從集合傳回單一警示,請使用索引子。

注意事項注意事項

之後對警示的任何變更,請使用Update方法。

Examples

這個程式碼範例會使用SPAlert類別來逐一查看每個使用者的站台的所有提醒並更新提醒的頻率。

Dim site As SPWeb = SPControl.GetContextWeb(Context)
Dim users As SPUserCollection = site.Users
Dim user As SPUser

For Each user In  users

    Dim alerts As SPAlertCollection = user.Alerts
    Dim alert As SPAlert

    For Each alert In  alerts

        alert.AlertFrequency = 
            Microsoft.SharePoint.SPAlertFrequency.Immediate

        alert.Update()

    Next alert

Next user 
SPWeb oWebsite = SPContext.Current.Web;
SPUserCollection collUsers = oWebsite.Users;

    foreach (SPUser oUser in collUsers)
    {
        SPAlertCollection collAlerts = oUser.Alerts;

         foreach (SPAlert oAlert in collAlerts)
         {
             oAlert.AlertFrequency =  
             Microsoft.SharePoint.SPAlertFrequency.Immediate;

             oAlert.Update();
         }
     }
注意事項注意事項

某些物件實作IDisposable介面,並且您必須避免之後不再需要保留這些物件在記憶體中。良好的程式碼撰寫方式的相關資訊,請參閱Disposing Objects

Thread safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

請參閱

參照

SPAlert members

Microsoft.SharePoint namespace