c# 使用bartender sdk 打印

    在网上参考了其它的资料，研究了bartender打印，走了不少弯路。

    安装完bartender后，装全功能版本，在安装路径下，可以找到sdk文件，我需要根据传入的excel文件，检查bartender标签中，有没有指定的列进行打印， barterder10.0版本不支持返回当前标签文件有哪些嵌入式字段，10.1支持，所以只好装了10.1版本，安装了全功能试用版本

引用Seagull.BarTender.Print.dll即可，在安装程序目录下可以找到， 调用代码如下

using Seagull.BarTender.Print;
using System;
using System.Collections.Generic;
using System.Data;
using System.Diagnostics;
using System.Text;

namespace libPrintBarTender
{
public class CPrinter
{
/// <summary>
/// dtPrint.Columns.Add("EZPrinter"); // 打印机名字
/// dtPrint.Columns.Add("EZLabelFile"); // 打印的模板文件
/// dtPrint.Columns.Add("EZLabelType"); // 打印的类型 Label 标签
/// dtPrint.Columns.Add("EZLabelCopies"); // 打印的份数
/// dtPrint.Columns.Add("EZPrintMission"); // 默认值1
/// </summary>
/// <param name="dtPrintInfo"></param>
public void PrintLabel(DataTable dtPrintInfo)
{
Engine engine = null;
LabelFormatDocument btFormat = null;
try
{
if (dtPrintInfo.Rows.Count == 0)
{
return;
}
engine = new Engine(true);
if (engine == null)
{
throw new Exception("初始化打印机失败，请检查bartender软件!");
}

string printerName = dtPrintInfo.Rows[0]["EZPrinter"].ToString();
string labelFile = dtPrintInfo.Rows[0]["EZLabelFile"].ToString();
try
{
btFormat = engine.Documents.Open(labelFile, printerName);
}
catch (Exception ex)
{
throw new Exception("打开模块与打印机失败:" + ex.Message);
}
// 打印标签
PrintInfo(btFormat, dtPrintInfo);

if (btFormat != null)
{
btFormat.Close(SaveOptions.DoNotSaveChanges);
}
if (engine != null)
{
engine.Stop(SaveOptions.DoNotSaveChanges);
}
}
catch (Exception ex)
{
throw new Exception("打印失败:" + ex.Message);
}
finally
{
}
}

private static List<string> GetPrintLabelTemplateFields(LabelFormatDocument btFormat)
{
List<string> colLists = new List<string>(btFormat.SubStrings.Count);
for(int i=0; i< btFormat.SubStrings.Count; i++ )
{
colLists.Add(btFormat.SubStrings[i].Name);
}
return colLists;
}

private static void RemoveMuchFields(LabelFormatDocument btFormat, ref DataTable dtPrintInfo)
{
List<string> colLists = GetPrintLabelTemplateFields(btFormat);
int m = 0;
while (dtPrintInfo.Columns.Count > m)
{
string colName = dtPrintInfo.Columns[m].ColumnName;
if (colLists.Contains(colName))
{
m++;
continue;
}
else if (string.Equals(colName, "EZLabelCopies"))
{
m++;
continue;
}
else
{
dtPrintInfo.Columns.RemoveAt(m);
}
}
}

private static void PrintInfo(LabelFormatDocument btFormat, DataTable dtPrintInfo)
{
bool bSerializedLabels = btFormat.PrintSetup.SupportsSerializedLabels;
bool bCopies = btFormat.PrintSetup.SupportsIdenticalCopies;
int nCopyies = 0;

// 去除多余的字段
RemoveMuchFields(btFormat, ref dtPrintInfo);
if (dtPrintInfo.Columns.Count <= 1)
{
return; // 没有要打印的字段了
}

for (int i = 0; i < dtPrintInfo.Rows.Count; i++)
{
string copies = dtPrintInfo.Rows[i]["EZLabelCopies"].ToString();
nCopyies = copies.Length > 0 ? int.Parse(copies) : 1;
if (nCopyies <= 0)
{
continue;
}

if (bCopies) // 打印机驱动是否支持打印份数
{
btFormat.PrintSetup.IdenticalCopiesOfLabel = nCopyies;
nCopyies = 1;
}

if (bSerializedLabels)
{
btFormat.PrintSetup.NumberOfSerializedLabels = 1;
}
for (int m = 1; m <= nCopyies; m++)
{
for (int j = 0; j < dtPrintInfo.Columns.Count; j++)
{
string fieldName = dtPrintInfo.Columns[j].ToString();
if (string.Equals(fieldName, "EZLabelCopies"))
{
continue;
}
btFormat.SubStrings[fieldName].Value = dtPrintInfo.Rows[i][fieldName].ToString();
}

Messages messages;
int waitForCompletionTimeout = 10000; // 10 seconds
Result result = btFormat.Print("Label Print", waitForCompletionTimeout, out messages);
if (result == Result.Failure)
{
string messageString = "";
foreach (Seagull.BarTender.Print.Message message in messages)
{
messageString += "\n" + message.Text;
}
throw new Exception(string.Format("打印第[{0}]标签失败,原因:{1}!", i + 1, messageString));
}
}
}
}

}
}