再开一贴，贴代码再求远程打印解决方法，出现新问题！UP即散分

Question

代码如下：

StringBuilder sb=null; public struct DOCINFO
        {
            [MarshalAs(UnmanagedType.LPWStr)]public string pDocName;
            [MarshalAs(UnmanagedType.LPWStr)]public string pOutputFile;
            [MarshalAs(UnmanagedType.LPWStr)]public string pDataType;
        }         public class PrintDirect
        {
            [DllImport("winspool.drv", CharSet = CharSet.Unicode, ExactSpelling = false,
           CallingConvention = CallingConvention.StdCall)]
            public static extern long OpenPrinter(string pPrinterName, ref IntPtr phPrinter,
            int pDefault);            [DllImport("winspool.drv", CharSet = CharSet.Unicode, ExactSpelling = false,
           CallingConvention = CallingConvention.StdCall)]
            public static extern long StartDocPrinter(IntPtr hPrinter, int Level,
            ref DOCINFO pDocInfo);            [DllImport("winspool.drv", CharSet = CharSet.Unicode, ExactSpelling = true,
           CallingConvention = CallingConvention.StdCall)]
            public static extern long StartPagePrinter(IntPtr hPrinter);            [DllImport("winspool.Drv", CallingConvention=CallingConvention.StdCall, CharSet=CharSet.Unicode,
            SetLastError=true, ExactSpelling=true)]
            public static extern bool WritePrinter(IntPtr hPrinter, byte[] pBytes, int dwCount, ref int dwWritten);            [DllImport("winspool.drv", CharSet = CharSet.Unicode, ExactSpelling = true,
           CallingConvention = CallingConvention.StdCall)]
            public static extern long EndPagePrinter(IntPtr hPrinter);            [DllImport("winspool.drv", CharSet = CharSet.Unicode, ExactSpelling = true,
           CallingConvention = CallingConvention.StdCall)]
            public static extern long EndDocPrinter(IntPtr hPrinter);            [DllImport("winspool.drv", CharSet = CharSet.Unicode, ExactSpelling = true,
           CallingConvention = CallingConvention.StdCall)]
            public static extern long ClosePrinter(IntPtr hPrinter);
        }  private void button1_Click(object sender, EventArgs e)
        {
string strConnection = "Provider=Microsoft.Jet.OleDb.4.0;";
            strConnection += @"Data Source=db1.mdb";            OleDbConnection objConnection = new OleDbConnection(strConnection);            objConnection.Open();            OleDbDataAdapter da = new OleDbDataAdapter("select data from print where ID=1", objConnection);
            DataSet ds = new DataSet();
            da.Fill(ds, "print");            printStr = ds.Tables["print"].Rows[0]["data"].ToString();

//给文档换行，在70个字符后换行
for (i = 0; i < printStr.Length - 70; i += 70)
                sb.Append(printStr.Substring(i, 70)).Append("\n");
            sb.Append(printStr.Substring(i)).Append("\n"); System.IntPtr lhPrinter = new System.IntPtr();                DOCINFO di = new DOCINFO();
                int pcWritten = 0; //用Encoding转换字符串
                byte[] bytStr = System.Text.Encoding.Default.GetBytes(sb.ToString());                    PrintDirect.OpenPrinter("\\\\192.168.112.5\\1150PCL 5e", ref lhPrinter, 0);
                PrintDirect.StartDocPrinter(lhPrinter, 1, ref di);
                PrintDirect.StartPagePrinter(lhPrinter);                try
                {
                    PrintDirect.WritePrinter(lhPrinter, bytStr, printStr.Length, ref pcWritten);
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message);
                }                PrintDirect.EndPagePrinter(lhPrinter);
                PrintDirect.EndDocPrinter(lhPrinter);
                PrintDirect.ClosePrinter(lhPrinter);
}
现在可以打印，1页的word文档，只能打印出开头三行和最后一行，并且是分两张纸出来的急求解决方案，项目到期，非常着急！求顶，UP散分

Answer 1

for (i = 0; i < printStr.Length - 70; i += 70)
                sb.Append(printStr.Substring(i, 70)).Append("\n");
这里有问题吧，感觉一致在换行啊，没有跳出