XMLTask.OverwriteDestination 属性

Gets or sets a Boolean that indicates whether the operation overwrites existing destination files.

命名空间：  Microsoft.SqlServer.Dts.Tasks.XMLTask
程序集：  Microsoft.SqlServer.XMLTask（在 Microsoft.SqlServer.XMLTask.dll 中）

语法

声明
Public Property OverwriteDestination As Boolean 
    Get 
    Set
用法
Dim instance As XMLTask 
Dim value As Boolean 

value = instance.OverwriteDestination

instance.OverwriteDestination = value

public bool OverwriteDestination { get; set; }

public:
virtual property bool OverwriteDestination {
    bool get () sealed;
    void set (bool value) sealed;
}

abstract OverwriteDestination : bool with get, set 
override OverwriteDestination : bool with get, set

final function get OverwriteDestination () : boolean 
final function set OverwriteDestination (value : boolean)

属性值

类型：System.Boolean
true if the operation overwrites existing destination files.

实现

IDTSXMLTask.OverwriteDestination

注释

The default value for this property is false. This property is available to the XMLTask, regardless of the OperationType value.

示例

The following code example adds an XMLTask to a package, and sets properties using the TaskHost.

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

namespace XMLTask_API
{
    class Program
        {
        static void Main(string[] args)
            {
                // Set up the objects and tasks.
                Package pkg = new Package();
                Executable exec1 = pkg.Executables.Add("STOCK:XMLTask");
                TaskHost th = exec1 as TaskHost;
                // You can cast the InnerObject to the XmlTask here.
                // XMLTask myTask = th.InnerObject as XMLTask;

                // Create a variable and a FILE connection manager to books.xml.
                Variable resultVar = pkg.Variables.Add("resultVariable", false, "", "Variable for the result");
                ConnectionManager connMgr = pkg.Connections.Add("FILE");
                connMgr.Name = "XMLConnectionManager";
                // The file, Books.xml, is stored on the C:\ drive.
                connMgr.ConnectionString = @"c:\books.xml";

                // Set the XMLTask properties.
                // The first property to set is the OperationType. Depending on the
                // OperationType, different properties are valid.
                // The operation type in this example is VALIDATE.
                th.Properties["OperationType"].SetValue(th, DTSXMLOperation.Validate);
                th.Properties["SourceType"].SetValue(th, DTSXMLSourceType.FileConnection);
                th.Properties["Source"].SetValue(th, connMgr.Name);
                th.Properties["OverwriteDestination"].SetValue(th, true);
                th.Properties["SaveOperationResult"].SetValue(th, true);
                th.Properties["DestinationType"].SetValue(th, DTSXMLSaveResultTo.Variable);
                th.Properties["Destination"].SetValue(th, resultVar.Name);
                th.Properties["SecondOperandType"].SetValue(th, DTSXMLSourceType.DirectInput);
                th.Properties["SecondOperand"].SetValue(th, "<x></x>");
                th.Properties["ValidationType"].SetValue(th, DTSXMLValidationType.DTD);
                th.Properties["FailOnValidationFaile"].SetValue(th, true);
                DTSExecResult valResults = pkg.Validate(pkg.Connections, pkg.Variables, null, null);
                Console.WriteLine("RESULTS: {0}", valResults);
            }
        }
}

Sample Output:

RESULTS: Success

请参阅

参考

XMLTask 类

Microsoft.SqlServer.Dts.Tasks.XMLTask 命名空间