DTSBreakpointHitTest 列舉
Enumerates the values for the hit count types. This class works with the BreakpointTarget class.
命名空間: Microsoft.SqlServer.Dts.Runtime
組件: Microsoft.SqlServer.ManagedDTS (在 Microsoft.SqlServer.ManagedDTS.dll 中)
語法
'宣告
Public Enumeration DTSBreakpointHitTest
'用途
Dim instance As DTSBreakpointHitTest
public enum DTSBreakpointHitTest
public enum class DTSBreakpointHitTest
type DTSBreakpointHitTest
public enum DTSBreakpointHitTest
成員
成員名稱 | 說明 | |
---|---|---|
Always | Execution is always suspended when the breakpoint is hit. | |
GreaterOrEqual | Execution is suspended when the number of times the breakpoint has occurred is equal to or greater than the hit count. | |
Equal | Execution is suspended when the number of times the breakpoint has occurred is equal to the hit count. | |
Multiple | Execution is suspended when a multiple of the hit count occurs. | |
Expression | Execution is suspended when the expression changes. |
備註
To add flexibility and power to a breakpoint, you can modify the behavior of a breakpoint by configuring the breakpoint hit count, which specifies the number of times a breakpoint occurs before the run-time engine is suspended, and the hit count type, which contains an expression that specifies when the breakpoint is hit. This value is used in the HitTest property.
範例
The following code example modifies the default value of a BreakpointTarget using this enumeration.
using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.SqlServer.Dts.Runtime;
namespace Microsoft.SqlServer.SSIS.Samples
{
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);
// Get the first breakpoint in the collection.
BreakpointTargetEnumerator myEnumerator = bptargets.GetEnumerator();
myEnumerator.MoveNext();
BreakpointTarget bptFirstOne = myEnumerator.Current;
// Display the initial values.
Console.WriteLine("Description {0}", bptFirstOne.Description);
Console.WriteLine("Enabled? {0}", bptFirstOne.Enabled);
Console.WriteLine("HitTest {0}", bptFirstOne.HitTest);
Console.WriteLine("ID {0}", bptFirstOne.ID);
Console.WriteLine("--------------------------------------------");
// Modify the default value of HitTest.
myEnumerator.Reset();
myEnumerator.MoveNext();
bptFirstOne = myEnumerator.Current;
bptFirstOne.HitTest = DTSBreakpointHitTest.Equal;
// Display the values again, including the new HitTest.
Console.WriteLine("Description {0}", bptFirstOne.Description);
Console.WriteLine("Enabled? {0}", bptFirstOne.Enabled);
Console.WriteLine("HitTest {0}", bptFirstOne.HitTest);
Console.WriteLine("ID {0}", bptFirstOne.ID);
}
}
}
Imports System
Imports System.Collections.Generic
Imports System.Text
Imports Microsoft.SqlServer.Dts.Runtime
Namespace Microsoft.SqlServer.SSIS.Samples
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)
' Get the first breakpoint in the collection.
Dim myEnumerator As BreakpointTargetEnumerator = bptargets.GetEnumerator()
myEnumerator.MoveNext()
Dim bptFirstOne As BreakpointTarget = myEnumerator.Current
' Display the initial values.
Console.WriteLine("Description {0}", bptFirstOne.Description)
Console.WriteLine("Enabled? {0}", bptFirstOne.Enabled)
Console.WriteLine("HitTest {0}", bptFirstOne.HitTest)
Console.WriteLine("ID {0}", bptFirstOne.ID)
Console.WriteLine("--------------------------------------------")
' Modify the default value of HitTest.
myEnumerator.Reset()
myEnumerator.MoveNext()
bptFirstOne = myEnumerator.Current
bptFirstOne.HitTest = DTSBreakpointHitTest.Equal
' Display the values again, including the new HitTest.
Console.WriteLine("Description {0}", bptFirstOne.Description)
Console.WriteLine("Enabled? {0}", bptFirstOne.Enabled)
Console.WriteLine("HitTest {0}", bptFirstOne.HitTest)
Console.WriteLine("ID {0}", bptFirstOne.ID)
End Sub
End Class
End Namespace
Sample Output:
Description Break when the container receives the OnPreExecute event
Enabled? False
HitTest Always
ID -2147483647
--------------------------------------------
Description Break when the container receives the OnPreExecute event
Enabled? False
HitTest Equal
ID -2147483647