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SqlTrackingWorkflowInstance Class

Provides access to tracking data maintained in a SQL database by the SqlTrackingService for a workflow instance

Namespace: System.Workflow.Runtime.Tracking
Assembly: System.Workflow.Runtime (in system.workflow.runtime.dll)

public class SqlTrackingWorkflowInstance
public class SqlTrackingWorkflowInstance
public class SqlTrackingWorkflowInstance
Not applicable.

SqlTrackingWorkflowInstance objects are returned by a call to both SqlTrackingQuery.TryGetWorkflow and SqlTrackingQuery.GetWorkflows and provide access to the tracking data maintained in a SQL database by the SqlTrackingService for a specific workflow instance. The SqlTrackingWorkflowInstance class optimizes its access to the database for its properties which maintain collections. For more information, see Refresh.

The following code example demonstrates how you can obtain information about all SqlTrackingWorkflowInstance objects contained in a list of displayed workflows. The code creates a ListViewItem for each SqlTrackingWorkflowInstance found in a displayedWorkflows variable. Each ListViewItem contains a string representation of the WorkflowInstanceInternalId, the WorkflowType and Status properties. It then adds the item to a workflowStatusList. The code uses the previously named property values and a string version of the Initialized property to create a new WorkflowStatusInfo object that is also added to the workflowStatusList.

This code example is part of the Workflow Monitor SDK Sample from the Mainform.cs file. For more information, see Workflow Monitor.

// For every workflow instance create a new WorkflowStatusInfo object and store in the workflowStatusList
// Also populate the workflow ListView
foreach (SqlTrackingWorkflowInstance sqlTrackingWorkflowInstance in displayedWorkflows)
{
    ListViewItem listViewItem = new ListViewItem(new string[] {
        sqlTrackingWorkflowInstance.WorkflowInstanceInternalId.ToString(),
        sqlTrackingWorkflowInstance.WorkflowType.ToString(),
        sqlTrackingWorkflowInstance.Status.ToString()}, -1);
    
    listViewWorkflows.Items.Add(listViewItem);

    workflowStatusList.Add(sqlTrackingWorkflowInstance.WorkflowInstanceInternalId.ToString(),
            new WorkflowStatusInfo(
                sqlTrackingWorkflowInstance.WorkflowInstanceInternalId.ToString(),
                sqlTrackingWorkflowInstance.WorkflowType.ToString(),
                sqlTrackingWorkflowInstance.Status.ToString(),
                sqlTrackingWorkflowInstance.Initialized.ToString(),
                sqlTrackingWorkflowInstance.WorkflowInstanceId, 
                listViewItem));
}

System.Object
  System.Workflow.Runtime.Tracking.SqlTrackingWorkflowInstance

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

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0
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