WindowsEventLogsBufferConfiguration.DataSources Property

Gets or sets a list of configured data sources for Windows event logs.

Namespace:   Microsoft.WindowsAzure.Diagnostics
Assembly:  Microsoft.WindowsAzure.Diagnostics (in Microsoft.WindowsAzure.Diagnostics.dll)

Syntax

public IList<string> DataSources { get; }

public:
property IList<String^>^ DataSources {
    IList<String^>^ get();
}

member DataSources : IList<string> with get

Public ReadOnly Property DataSources As IList(Of String)

Property Value

Type: System.Collections.Generic.IList<String>

Type: System.Collections.Generic.IList

Returns IList<T>.

Remarks

The DataSources collection stores the list of Windows events to monitor. This property is used when retrieving or adding an event string to WindowsEventLog, as WindowsEventLog is of type WindowsEventLogsBufferConfiguration. The following code snippet adds the Application!* event log string to the DataSources property of WindowsEventLogs:

// Get the connection string. It's recommended that you store the connection string in your web.config or app.config file.
// Use the ConfigurationManager type to retrieve your storage connection string.  You can find the account name and key in
// the Windows Azure Management Portal (https://manage.windowsazure.com).
//string connectionString = "DefaultEndpointsProtocol=https;AccountName=<AccountName>;AccountKey=<AccountKey>";
string connectionString = System.Configuration.ConfigurationManager.ConnectionStrings["StorageConnectionString"].ConnectionString;

// The deployment ID and role name for your application can be obtained from the 
// Windows Azure Management Portal (https://manage.windowsazure.com). See your 
// application dashboard under Cloud Services.
string deploymentID = "e2ab8b6667644666ba627bdf6f5e4daa";
string roleName = "WebRole1";

// Get the DeploymentDiagnosticManager object for your deployment.
DeploymentDiagnosticManager diagManager = new DeploymentDiagnosticManager(connectionString, deploymentID);

// Get the RoleInstanceDiagnosticManager objects for each instance of your role.
IEnumerable<RoleInstanceDiagnosticManager> instanceManagers = diagManager.GetRoleInstanceDiagnosticManagersForRole(roleName);

// Iterate through the role instances and update the configuration.
foreach (RoleInstanceDiagnosticManager roleInstance in instanceManagers)
{
   DiagnosticMonitorConfiguration diagnosticConfiguration = roleInstance.GetCurrentConfiguration();

   // Add Application logs to the configuration.
   diagnosticConfiguration.WindowsEventLog.DataSources.Add("Application!*");

   // Filter the logs so that only error-level logs are transferred to persistent storage.
   diagnosticConfiguration.WindowsEventLog.ScheduledTransferLogLevelFilter = LogLevel.Error;

   // Schedule a transfer period of 30 minutes.
   diagnosticConfiguration.WindowsEventLog.ScheduledTransferPeriod = TimeSpan.FromMinutes(30.0);

   roleInstance.SetCurrentConfiguration(diagnosticConfiguration);
}

See Also

WindowsEventLogsBufferConfiguration Class
Microsoft.WindowsAzure.Diagnostics Namespace

Return to top