從SSIS包中提取映射列

Question

我正在使用.NET從SSIS包中提取元數據。

有沒有一種方法來提取來自OLEDB源的映射信息（沒有變量用於語句），它的目的地？

Answer 1

是的，雖然你必須深深進入IDTSPipeline100和相關接口的雜草可以這樣做：

using System; 
using Microsoft.SqlServer.Dts.Runtime; 
using Microsoft.SqlServer.Dts.Pipeline.Wrapper; 

namespace CSharpConsoleApp 
{ 
    class PackageDemo 
    { 
     public void CountColumns(string packagePath, string dataFlowName) 
     { 
      Application app = new Application(); 
      Package package = app.LoadPackage(packagePath, null); 

      TaskHost th = package.Executables[dataFlowName] as TaskHost; 
      MainPipe mp = th.InnerObject as MainPipe; 
      foreach (IDTSComponentMetaData100 md in mp.ComponentMetaDataCollection) 
      { 
       foreach (IDTSOutput100 output in md.OutputCollection) 
       { 
        Console.WriteLine("Component {0} output {1} has {2} columns", 
         md.Name, output.Name, output.OutputColumnCollection.Count); 
        foreach (IDTSOutputColumn100 column in output.OutputColumnCollection) 
        { 
         Console.WriteLine("\tcolumn {0} ({1}) is of type {2}", 
          column.ID, column.Name, column.DataType); 
        } 
       } 
      } 
     } 
    } 
} 

請注意，您將需要爲此對Microsoft.SqlServer.ManagedDTS，Microsoft.SqlServer.DtsPipelineWrap和Microsoft.SqlServer.DtsRuntimeWrap引用的DLL代碼來編譯。