BreakpointTarget.BreakOnExpressionChange 属性

定义

命名空间:

Microsoft.SqlServer.Dts.Runtime

程序集:

Microsoft.SqlServer.ManagedDTS.dll

获得或设置一个布尔值，指示代码是继续运行还是在表达式变化时停止执行。

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

属性值

Boolean

一个布尔值，表示表达式变化时代码是否会被破坏。 true表示该包将被破坏;false 表示包裹不会损坏。

示例

以下代码示例从包中检索断点目标集合，并遍历断点，展示每个断点的属性，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  

示例输出：

表情变化的破裂？ 假

描述 当容器收到 OnPreExecute 事件时会中断

是否启用？ 假

命中计数 0

命中目标0

HitTest 始终

身份 -2147483647

所有者是Microsoft。SqlServer.Dts.Runtime.TaskHost