ActivityTrackingCondition.Value 屬性

定義

命名空間:

System.Workflow.Runtime.Tracking

組件:

System.Workflow.Runtime.dll

要與 Member 比較的值。

public:
 virtual property System::String ^ Value { System::String ^ get(); void set(System::String ^ value); };

public override string Value { get; set; }

member this.Value : string with get, set

Public Overrides Property Value As String

屬性值

String

比較中使用的值。

範例

下列程式碼範例將示範如何存取 Value 屬性。 這個範例來自＜追蹤設定檔設計工具 SDK＞範例。 如需詳細資訊，請參閱 追蹤配置文件設計工具範例。

/// <summary>
/// Saves a tracking condition for an activity
/// </summary>
/// <param name="activity"></param>
/// <param name="key"></param>
/// <param name="member"></param>
/// <param name="op"></param>
/// <param name="value"></param>
internal void SaveTrackingCondition(Activity activity, ref ActivityTrackingCondition key, string member, ComparisonOperator op, string value)
{
    ActivityTrackPoint trackPoint = GetTrackPointForActivity(activity);
    if (trackPoint != null)
    {
        if (key == null)
        {
            key = new ActivityTrackingCondition();
            trackPoint.MatchingLocations[0].Conditions.Add(key);
        }
        key.Member = member;
        key.Value = value;
        key.Operator = op;
    }
}

' Saves a tracking condition for an activity
' <param name="activity"></param>
' <param name="key"></param>
' <param name="member"></param>
' <param name="op"></param>
' <param name="value"></param>
Friend Sub SaveTrackingCondition(ByVal activity As Activity, ByRef key As ActivityTrackingCondition, ByVal member As String, ByVal op As ComparisonOperator, ByVal value As String)
    Dim trackPoint As ActivityTrackPoint = GetTrackPointForActivity(activity)
    If trackPoint IsNot Nothing Then
        If (key Is Nothing) Then
            key = New ActivityTrackingCondition()
            trackPoint.MatchingLocations(0).Conditions.Add(key)
        End If
        key.Member = member
        key.Value = value
        key.Operator = op
    End If
End Sub

備註

Value 和

Member 的值會在套用 Operator 後進行比較。

如果您使用的 ActivityTrackingCondition無參數建構函式，則必須明確設定 Value。