DtsContainer.IsolationLevel 属性
定义
重要
一些信息与预发行产品相关,相应产品在发行之前可能会进行重大修改。 对于此处提供的信息,Microsoft 不作任何明示或暗示的担保。
获取或设置 DtsContainer 对象中事务的隔离级别。
public:
property System::Data::IsolationLevel IsolationLevel { System::Data::IsolationLevel get(); void set(System::Data::IsolationLevel value); };
[Microsoft.SqlServer.Dts.Runtime.Localization.LocalizablePropertyCategory(typeof(Microsoft.SqlServer.Dts.Runtime.Localized), "PropertyCategoryTransactions")]
[Microsoft.SqlServer.Dts.Runtime.Localization.LocalizablePropertyDescription(typeof(Microsoft.SqlServer.Dts.Runtime.Localized), "IsolationLevelDesc")]
public System.Data.IsolationLevel IsolationLevel { get; set; }
[<Microsoft.SqlServer.Dts.Runtime.Localization.LocalizablePropertyCategory(typeof(Microsoft.SqlServer.Dts.Runtime.Localized), "PropertyCategoryTransactions")>]
[<Microsoft.SqlServer.Dts.Runtime.Localization.LocalizablePropertyDescription(typeof(Microsoft.SqlServer.Dts.Runtime.Localized), "IsolationLevelDesc")>]
member this.IsolationLevel : System.Data.IsolationLevel with get, set
Public Property IsolationLevel As IsolationLevel
属性值
对应于隔离级别的整数值。
- 属性
示例
下面的代码示例创建一个 Package继承自 DtsContainer的类。 显示 Package 多个继承属性的使用。
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)
{
Application app = new Application();
Package pkg = new Package();
// Package name must be assigned.
pkg.Name = "My DtsContainer inheritance test package";
// Display the values that manually assigned.
Console.WriteLine("Package Name: {0}", pkg.Name);
// Packages are assigned the following default values when created.
Console.WriteLine("Package ID: {0}", pkg.ID);
Console.WriteLine("FailPackageOnFailure: {0}", pkg.FailPackageOnFailure);
Console.WriteLine("FailParentOnFailure: {0}", pkg.FailParentOnFailure);
Console.WriteLine("Locale ID: {0}", pkg.LocaleID);
Console.WriteLine("Is DefaultLocaleID? {0}", pkg.IsDefaultLocaleID);
Console.WriteLine("Isolation Level: {0}", pkg.IsolationLevel);
Console.WriteLine("LoggingMode: {0}", pkg.LoggingMode);
Console.WriteLine("MaximumErrorCount: {0}", pkg.MaximumErrorCount);
Console.WriteLine("TransactionOption: {0}", pkg.TransactionOption);
}
}
}
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 app As Application = New Application()
Dim pkg As Package = New Package()
' Package name must be assigned.
pkg.Name = "My DtsContainer inheritance test package"
' Display the values that manually assigned.
Console.WriteLine("Package Name: {0}", pkg.Name)
' Packages are assigned the following default values when created.
Console.WriteLine("Package ID: {0}", pkg.ID)
Console.WriteLine("FailPackageOnFailure: {0}", pkg.FailPackageOnFailure)
Console.WriteLine("FailParentOnFailure: {0}", pkg.FailParentOnFailure)
Console.WriteLine("Locale ID: {0}", pkg.LocaleID)
Console.WriteLine("Is DefaultLocaleID? {0}", pkg.IsDefaultLocaleID)
Console.WriteLine("Isolation Level: {0}", pkg.IsolationLevel)
Console.WriteLine("LoggingMode: {0}", pkg.LoggingMode)
Console.WriteLine("MaximumErrorCount: {0}", pkg.MaximumErrorCount)
Console.WriteLine("TransactionOption: {0}", pkg.TransactionOption)
End Sub
End Class
End Namespace
示例输出:
包名称:My DtsContainer 继承测试包
包 ID:{2C2FAA96-35BA-4C5E-A39A-C5D7D30A0D79}
FailPackageOnFailure: False
FailParentOnFailure: False
区域设置 ID:1033
DefaultLocaleID 是吗? 错误
隔离级别:可序列化
LoggingMode:UseParentSetting
MaximumErrorCount: 1
TransactionOption:支持
注解
此属性的默认值为 -1 或 Unspecified。 有关可用值的详细信息,请参阅 System.Data 命名空间、ADO 和 OLE DB 中使用的 IsolationLevel 枚举。
下表列出了可用于该 IsolationLevel 属性的值。
值 | 隔离级别 |
---|---|
-1 | 未指定 |
16 | 混沌 |
256 | ReadUncommitted |
4096 | ReadCommitted |
65536 | RepeatableRead |
1048576 | 可序列化 |