SPAlertCollection.Item Property (Guid)
Gets the alert with the specified GUID from the collection. In C#, this property is an indexer for the SPAlertCollection class.
Namespace: Microsoft.SharePoint
Assembly: Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Available in Sandboxed Solutions: Yes
Available in SharePoint Online
Syntax
'Declaration
Public ReadOnly Property Item ( _
idAlert As Guid _
) As SPAlert
Get
'Usage
Dim instance As SPAlertCollection
Dim idAlert As Guid
Dim value As SPAlert
value = instance.Item(idAlert)
public SPAlert this[
Guid idAlert
] { get; }
Parameters
idAlert
Type: System.GuidA GUID that identifies the item.
Property Value
Type: Microsoft.SharePoint.SPAlert
A Microsoft.SharePoint.SPAlert object that represents the alert.
Examples
The following code example iterates through all the alerts on a site for a specified user, generates an array to store the GUID of each alert, and then uses each GUID to display the frequency and event type for each alert.
Dim site As SPSite = SPControl.GetContextSite(Context)
Dim web As SPWeb = site.AllWebs("Site_Name")
Dim alerts As SPAlertCollection = web.Users(TextBox1.Text).Alerts
Dim guids(alerts.Count) As System.Guid
Dim i As Integer
For i = 0 To alerts.Count - 1
guids.SetValue(alerts(i).ID, i)
Next i
Dim j As Integer
For j = 0 To guids.Length - 1
Label1.Text += alerts(guids(j)).AlertFrequency + "--" +
alerts(guids(j)).EventType + "<BR>"
Next j
SPSite oSite = SPContext.Current.Site;
SPWebCollection collWebsites = oSite.AllWebs;
foreach (SPWeb oWebsite in collWebsites)
{
SPAlertCollection collAlerts = oWebsite.Alerts;
foreach (SPAlert oAlert in collAlerts)
{
Label1.Text = SPEncode.HtmlEncode(oWebsite.Title) + " :: " +
SPEncode.HtmlEncode(oAlert.Title) + " :: " +
oAlert.User.LoginName + "<BR>";
}
oWebsite.Dispose();
}
Note
Certain objects implement the IDisposable interface, and you must avoid retaining these objects in memory after they are no longer needed. For information about good coding practices, see Disposing Objects.