c# - SSIS 脚本组件 : Microsoft. SqlServer.Dts.Pipeline.BlobColumn

Question

努力使用 C# 组件。我想要做的是在我的输入源中使用一个用管道分隔的 ntext 列，然后将该数组写入一个文本文件。当我运行我的组件时，我的输出如下所示:

DealerID,StockNumber,Option
161552,P1427,Microsoft.SqlServer.Dts.Pipeline.BlobColumn

我一直在使用 GetBlobData 方法，但遇到了困难。非常感谢任何帮助!这是完整的脚本:

public override void Input0_ProcessInputRow(Input0Buffer Row)
{
    string vehicleoptionsdelimited = Row.Options.ToString();
    //string OptionBlob = Row.Options.GetBlobData(int ;
    //string vehicleoptionsdelimited = System.Text.Encoding.GetEncoding(Row.Options.ColumnInfo.CodePage).GetChars(OptionBlob);
    string[] option = vehicleoptionsdelimited.Split('|');
    string path = @"C:\Users\User\Desktop\Local_DS_CSVs\";

    string[] headerline =
    {
        "DealerID" + "," + "StockNumber" + "," + "Option"
    };

    System.IO.File.WriteAllLines(path + "OptionInput.txt", headerline);

    using (System.IO.StreamWriter file = new System.IO.StreamWriter(path + "OptionInput.txt", true))
    {
        foreach (string s in option)
        {
            file.WriteLine(Row.DealerID.ToString() + "," + Row.StockNumber.ToString() + "," + s);
        }
    }

Answer 1

尝试使用

BlobToString(Row.Options)

使用这个函数:

  private string BlobToString(BlobColumn blob)
    {
        string result = "";
        try
        {
            if (blob != null)
            {
                result = System.Text.Encoding.Unicode.GetString(blob.GetBlobData(0, Convert.ToInt32(blob.Length)));
            }
        }
        catch (Exception ex)
        {
            result = ex.Message;
        }
        return result;
    }

改编自: http://mscrmtech.com/201001257/converting-microsoftsqlserverdtspipelineblobcolumn-to-string-in-ssis-using-c