BreakpointTarget.BreakOnExpressionChange 屬性

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定義

命名空間:

Microsoft.SqlServer.Dts.Runtime

組件:

Microsoft.SqlServer.ManagedDTS.dll

取得或設定布林值，這個布林值表示當運算式變更時，程式碼是要繼續執行還是中斷並停止執行。

public:
 property bool BreakOnExpressionChange { bool get(); void set(bool value); };

public bool BreakOnExpressionChange { get; set; }

member this.BreakOnExpressionChange : bool with get, set

Public Property BreakOnExpressionChange As Boolean

屬性值

Boolean

指出程式碼是否會在運算式變更時中斷的布林值。 true 表示封裝要中斷;false 表示封裝不會中斷。

範例

下列程式碼範例會從封裝中取出中斷點目標集合，並逐一查看中斷點，並顯示每個中斷點的屬性，包括 BreakOnExpressionChange 。

using System;  
using System.Collections.Generic;  
using System.Text;  
using Microsoft.SqlServer.Dts.Runtime;  
using Microsoft.SqlServer.Dts.Tasks.BulkInsertTask;  

namespace Breakpoint_API  
{  
    class Program  
    {  
        static void Main(string[] args)  
        {  
            Package pkg = new Package();  
            TaskHost taskHost = (TaskHost)pkg.Executables.Add("STOCK:FileSystemTask");  
            BreakpointTargets bptargets = pkg.GetBreakpointTargets(taskHost, false);  
            foreach (BreakpointTarget bpt in bptargets)  
                {  
                Console.WriteLine("BreakOnExpressionChange? {0}", bpt.BreakOnExpressionChange.ToString());  
                Console.WriteLine("Description              {0}", bpt.Description);  
                Console.WriteLine("Enabled?                 {0}", bpt.Enabled);  
                Console.WriteLine("HitCount                 {0}", bpt.HitCount);  
                Console.WriteLine("HitTarget                {0}", bpt.HitTarget);  
                Console.WriteLine("HitTest                  {0}", bpt.HitTest);  
                Console.WriteLine("ID                       {0}", bpt.ID);  
                Console.WriteLine("Owner                    {0}", bpt.Owner);  
            }  
        }  
    }  
}  

Imports System  
Imports System.Collections.Generic  
Imports System.Text  
Imports Microsoft.SqlServer.Dts.Runtime  
Imports Microsoft.SqlServer.Dts.Tasks.BulkInsertTask  

Namespace Breakpoint_API  
    Class Program  
        Shared  Sub Main(ByVal args() As String)  
            Dim pkg As Package =  New Package()   
            Dim taskHost As TaskHost = CType(pkg.Executables.Add("STOCK:FileSystemTask"), TaskHost)  
            Dim bptargets As BreakpointTargets =  pkg.GetBreakpointTargets(taskHost,False)   
            Dim bpt As BreakpointTarget  
            For Each bpt In bptargets  
                Console.WriteLine("BreakOnExpressionChange? {0}", bpt.BreakOnExpressionChange.ToString())  
                Console.WriteLine("Description              {0}", bpt.Description)  
                Console.WriteLine("Enabled?                 {0}", bpt.Enabled)  
                Console.WriteLine("HitCount                 {0}", bpt.HitCount)  
                Console.WriteLine("HitTarget                {0}", bpt.HitTarget)  
                Console.WriteLine("HitTest                  {0}", bpt.HitTest)  
                Console.WriteLine("ID                       {0}", bpt.ID)  
                Console.WriteLine("Owner                    {0}", bpt.Owner)  
            Next  
        End Sub  
    End Class  
End Namespace  

範例輸出：

BreakOnExpressionChange? 否

描述在容器接收 OnPreExecute 事件時中斷

已啟用? 否

擊中數0

HitTarget 0

一律 System.windows.media.visualtreehelper.hittest

識別碼-2147483647

TaskHost 的擁有者