从数据集导出到制表符分隔文件

Question

我在数据集中有数据.如何将其导出到制表符分隔文件？

Answer 1

var builder = new StringBuilder()

foreach(var row in dataSet.Tables.First().Rows)
{
   foreach(var cell in row.ItemArray)
   {
      builder.Append(cell.ToString());
      if(cell != row.Cells.Last())
         builder.Append("\t");
   }
   builder.Append(Environment.NewLine);
}

var file = new FileStream(filePath);
var writer = new StreamWriter(file);
writer.Write(builder.ToString());
writer.Flush();
writer.Close();