StateMachineWorkflowActivity.DynamicUpdateCondition Property

Definition

Namespace:

System.Workflow.Activities

Assembly:

System.Workflow.Activities.dll

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

public:
 property System::Workflow::ComponentModel::ActivityCondition ^ DynamicUpdateCondition { System::Workflow::ComponentModel::ActivityCondition ^ get(); void set(System::Workflow::ComponentModel::ActivityCondition ^ value); };

public System.Workflow.ComponentModel.ActivityCondition DynamicUpdateCondition { get; set; }

member this.DynamicUpdateCondition : System.Workflow.ComponentModel.ActivityCondition with get, set

Public Property DynamicUpdateCondition As ActivityCondition

Property Value

ActivityCondition

An ActivityCondition that identifies when dynamic updates can be made.

Examples

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.IsNullOrEmpty(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);
    }
}

Friend Function GetWorkflows( _
    ByVal workflowEvent As String, _
    ByVal from As System.DateTime, _
    ByVal until As DateTime, _
    ByVal trackingDataItemValue As TrackingDataItemValue) _
    As List(Of SqlTrackingWorkflowInstance)
    Try
        Dim queriedWorkflows As List(Of SqlTrackingWorkflowInstance) = New List(Of SqlTrackingWorkflowInstance)()
        Dim sqlTrackingQuery As SqlTrackingQuery = New SqlTrackingQuery(connectionString)
        Dim sqlTrackingQueryOptions As 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 (Not ((trackingDataItemValue.QualifiedName = String.Empty) Or (trackingDataItemValue.FieldName = String.Empty) Or ((trackingDataItemValue.DataValue = String.Empty)))) Then
            sqlTrackingQueryOptions.TrackingDataItems.Add(trackingDataItemValue)
        End If

        queriedWorkflows.Clear()
        If (workflowEvent.ToLower(CultureInfo.InvariantCulture) = "created") Then
            sqlTrackingQueryOptions.WorkflowStatus = System.Workflow.Runtime.WorkflowStatus.Created
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions))
        ElseIf (workflowEvent.ToLower(CultureInfo.InvariantCulture) = "completed") Then
            sqlTrackingQueryOptions.WorkflowStatus = System.Workflow.Runtime.WorkflowStatus.Completed
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions))
        ElseIf (workflowEvent.ToLower(CultureInfo.InvariantCulture) = "running") Then
            sqlTrackingQueryOptions.WorkflowStatus = System.Workflow.Runtime.WorkflowStatus.Running
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions))
        ElseIf (workflowEvent.ToLower(CultureInfo.InvariantCulture) = "suspended") Then
            sqlTrackingQueryOptions.WorkflowStatus = System.Workflow.Runtime.WorkflowStatus.Suspended
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions))
        ElseIf (workflowEvent.ToLower(CultureInfo.InvariantCulture) = "terminated") Then
            sqlTrackingQueryOptions.WorkflowStatus = System.Workflow.Runtime.WorkflowStatus.Terminated
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions))
        ElseIf ((workflowEvent = Nothing) Or _
                (workflowEvent.ToLower(CultureInfo.InvariantCulture) = "all") Or _
                (workflowEvent = String.Empty)) Then
            sqlTrackingQueryOptions.WorkflowStatus = System.Workflow.Runtime.WorkflowStatus.Created
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions))

            sqlTrackingQueryOptions.WorkflowStatus = System.Workflow.Runtime.WorkflowStatus.Completed
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions))

            sqlTrackingQueryOptions.WorkflowStatus = System.Workflow.Runtime.WorkflowStatus.Running
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions))

            sqlTrackingQueryOptions.WorkflowStatus = System.Workflow.Runtime.WorkflowStatus.Suspended
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions))

            sqlTrackingQueryOptions.WorkflowStatus = System.Workflow.Runtime.WorkflowStatus.Terminated
            queriedWorkflows.AddRange(sqlTrackingQuery.GetWorkflows(sqlTrackingQueryOptions))

        End If

        Return queriedWorkflows

    Catch exception As Exception
        'Dim errorMessage As String = "Exception in GetWorkflows" + vbCrLf + "Database: " + databaseName + vbCrLf + "Server: " + serverName
        Throw (New Exception("Exception in GetWorkflows", exception))
    End Try
End Function