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StateMachineWorkflowActivity.DynamicUpdateCondition Property

Gets or sets an ActivityCondition that determines whether dynamic updates can be made in the workflow, when overridden in a derived class.

Namespace:  System.Workflow.Activities
Assembly:  System.Workflow.Activities (in System.Workflow.Activities.dll)

public ActivityCondition DynamicUpdateCondition { get; set; }

Property Value

Type: System.Workflow.ComponentModel.ActivityCondition
An ActivityCondition that identifies when dynamic updates can be made.

The following example shows how to set the DynamicUpdateCondition property. This example is from the Ordering State Machine SDK sample. For more information, see Ordering State Machine Sample.

internal List<SqlTrackingWorkflowInstance> GetWorkflows(string workflowEvent, DateTime from, DateTime until, TrackingDataItemValue trackingDataItemValue)
{
    try
    {
        List<SqlTrackingWorkflowInstance> queriedWorkflows = new List<SqlTrackingWorkflowInstance>();
        SqlTrackingQuery sqlTrackingQuery = new SqlTrackingQuery(connectionString);
        SqlTrackingQueryOptions sqlTrackingQueryOptions = new SqlTrackingQueryOptions();
        sqlTrackingQueryOptions.StatusMinDateTime = from.ToUniversalTime();
        sqlTrackingQueryOptions.StatusMaxDateTime = until.ToUniversalTime();
        // If QualifiedName, FieldName, or DataValue is not supplied, we will not query since they are all required to match 
        if (!((string.Empty == trackingDataItemValue.QualifiedName) || (string.Empty == trackingDataItemValue.FieldName) || ((string.Empty == trackingDataItemValue.DataValue))))
            sqlTrackingQueryOptions.TrackingDataItems.Add(trackingDataItemValue);

        queriedWorkflows.Clear();

        if ("created" == workflowEvent.ToLower(CultureInfo.InvariantCulture))
        {
            sqlTrackingQueryOptions.WorkflowStatus = WorkflowStatus.Created;
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions));
        }
        else if ("completed" == workflowEvent.ToLower(CultureInfo.InvariantCulture))
        {
            sqlTrackingQueryOptions.WorkflowStatus = WorkflowStatus.Completed;
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions));
        }
        else if ("running" == workflowEvent.ToLower(CultureInfo.InvariantCulture))
        {
            sqlTrackingQueryOptions.WorkflowStatus = WorkflowStatus.Running;
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions));
        }
        else if ("suspended" == workflowEvent.ToLower(CultureInfo.InvariantCulture))
        {
            sqlTrackingQueryOptions.WorkflowStatus = WorkflowStatus.Suspended;
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions));
        }
        else if ("terminated" == workflowEvent.ToLower(CultureInfo.InvariantCulture))
        {
            sqlTrackingQueryOptions.WorkflowStatus = WorkflowStatus.Terminated;
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions));
        }
        else if (("all" == workflowEvent.ToLower(CultureInfo.InvariantCulture)) || (string.Empty == workflowEvent) || (null == workflowEvent))
        {
            sqlTrackingQueryOptions.WorkflowStatus = WorkflowStatus.Created;
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions));

            sqlTrackingQueryOptions.WorkflowStatus = WorkflowStatus.Completed;
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions));

            sqlTrackingQueryOptions.WorkflowStatus = WorkflowStatus.Running;
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions));

            sqlTrackingQueryOptions.WorkflowStatus = WorkflowStatus.Suspended;
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions));

            sqlTrackingQueryOptions.WorkflowStatus = WorkflowStatus.Terminated;
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions));

        }
        return queriedWorkflows;

    }
    catch (Exception exception)
    {
        throw new Exception("Exception in GetWorkflows", exception);
    }
}

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0

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