C# 获取平面文件连接的字段列表？

如何编写函数（外部函数、c#、f#或powershell脚本等）

List GetFields（string-ssisPackageName、string-fileSourceName）；

要获取SSIS包的字段列表？由于包是一个Xml文件，可以使用xquery获取列表吗

或者更好的是，获取更多信息

class Field 
{ 
  public string Name { get; set; } 
  public string Type { get; set; } 
}
List<Field> GetFields(string ssisPackageName, string fileSourceName);

类字段
{ 
公共字符串名称{get；set；}
公共字符串类型{get；set；}
}
列出GetFields（字符串ssisPackageName、字符串fileSourceName）；

@billinkc是正确的，您应该记住数据键入问题。也就是说，您最多可以检索平面文件连接管理器本身的代码页和Unicode值。下面的代码应该让您开始，您可能需要查找代码页和数据类型属性

string path = @"MyPathTo\Package.dtsx";
XNamespace dts = "www.microsoft.com/SqlServer/Dts";
XDocument doc = XDocument.Load(path);

// get all connections
var connections = from ele in doc.Descendants(dts + "ConnectionManager")
                  where ele.Attributes(dts + "ObjectName").Count() != 0
                  select ele;

foreach (var connection in connections)
{
    // look for your flat file connection
    if (connection.Attribute(dts + "ObjectName").Value == "Flat File Connection Manager")
    {
        var connectionDetails = connection.Element(dts + "ObjectData").Element(dts + "ConnectionManager");
        Console.WriteLine("CodePage: " + connectionDetails.Attribute(dts + "CodePage").Value);
        Console.WriteLine("Unicode: " + connectionDetails.Attribute(dts + "Unicode").Value);
        var columnList = connection.Descendants(dts + "FlatFileColumn");
        foreach (var column in columnList)
        {
            Console.WriteLine("Column name: " + column.Attribute(dts + "ObjectName").Value);
            Console.WriteLine("Column type: " + column.Attribute(dts + "DataType").Value);
        }
    }
}

---

需要检索特定平面文件连接管理器的列定义？我认为您的

字段

类不能充分表示数据类型的复杂性。如果是字符串，是ANSI还是Unicode？Unicode，8还是16？等

string path = @"MyPathTo\Package.dtsx";
XNamespace dts = "www.microsoft.com/SqlServer/Dts";
XDocument doc = XDocument.Load(path);

// get all connections
var connections = from ele in doc.Descendants(dts + "ConnectionManager")
                  where ele.Attributes(dts + "ObjectName").Count() != 0
                  select ele;

foreach (var connection in connections)
{
    // look for your flat file connection
    if (connection.Attribute(dts + "ObjectName").Value == "Flat File Connection Manager")
    {
        var connectionDetails = connection.Element(dts + "ObjectData").Element(dts + "ConnectionManager");
        Console.WriteLine("CodePage: " + connectionDetails.Attribute(dts + "CodePage").Value);
        Console.WriteLine("Unicode: " + connectionDetails.Attribute(dts + "Unicode").Value);
        var columnList = connection.Descendants(dts + "FlatFileColumn");
        foreach (var column in columnList)
        {
            Console.WriteLine("Column name: " + column.Attribute(dts + "ObjectName").Value);
            Console.WriteLine("Column type: " + column.Attribute(dts + "DataType").Value);
        }
    }
}