Appointments.SearchAsync Method (DateTime, DateTime, Account, Object)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Asynchronously searches for appointments that occur between the specified start date and time and end date and time, from the specified data source.
Assembly: Microsoft.Phone (in Microsoft.Phone.dll)
'Declaration Public Sub SearchAsync ( _ startTimeInclusive As DateTime, _ endTimeInclusive As DateTime, _ account As Account, _ state As Object _ )
Parameters
- startTimeInclusive
- Type: System.DateTime
The start date and time to use to search for appointments.
- endTimeInclusive
- Type: System.DateTime
The end date and time to use to search for appointments.
- account
- Type: Microsoft.Phone.UserData.Account
The data source to search for appointments.
- state
- Type: System.Object
A user-defined object that contains information about the operation.
The maximum number of appointments that are returned is stored in DefaultMaximumItems.
The state object is stored in the AppointmentsSearchEventArgs class and passed to the SearchCompleted delegate when the operation is complete.
Applications that use the Calendar APIs may fail to start. This can occur for applications that are upgraded from Windows Phone OS 7.0 to Windows Phone OS 7.1. To resolve this issue, open the file WMAppManifest.xml and add the following element.
<Capability Name="ID_CAP_APPOINTMENTS"/>
The following example assumes that you have a Windows Phone application that has a page with a button named SearchAppointments. The code assumes that you have a databound list box named AppointmentResultsData. In this example, you search for all appointments in the next seven days. For the full example, including the XAML, see How to access calendar data for Windows Phone 8.
Imports Microsoft.Phone.UserData Partial Public Class AppointmentsPage Inherits PhoneApplicationPage Public Sub New() InitializeComponent() End Sub Private Sub SearchAppointments_Click(sender As System.Object, e As System.Windows.RoutedEventArgs) AppointmentResultsData.DataContext = Nothing Dim appts As Appointments = new Appointments() AddHandler appts.SearchCompleted, AddressOf Appointments_SearchCompleted Dim start As DateTime = DateTime.Now Dim endTime As DateTime = start.AddDays(7) For Each acct As Account In (new Appointments()).Accounts appts.SearchAsync(start, endTime, acct, "Appointments Test " + acct.Kind.ToString()) Next End Sub Private Sub Appointments_SearchCompleted(sender As Object, e As AppointmentsSearchEventArgs) 'MessageBox.Show(e.State.ToString()) 'MessageBox.Show(e.StartTimeInclusive.ToShortDateString()) 'MessageBox.Show(e.EndTimeInclusive.ToShortDateString()) Try 'Bind the results to the list box that displays them in the UI. AppointmentResultsData.DataContext = e.Results Catch ex As System.Exception 'That's okay, no results. End Try End Sub End Class