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C# Lodop实现打印

项目的Debug文件夹下有个template文件夹,里面有用到的js、自己建的要打印的网页和用到的背景图

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1、打印方法:

class print
{
    public void printzb(string bh){

        //要打印的变量
        string zwjyzsbh = "123456";
        string zsfwdp = "";
        string zsfwdc = "";
        string zsfwdxian = "";
        //获取打印背景图的地址
        string pash="";
        string pashimg="";
        
        //这里用到了VelocityHelper模板
        VelocityHelper vh = new VelocityHelper();
        
        vh.Init(@"template");//初始化,指定模板文件的相对路径,就是工程里Debug文件里的路径
        
        //put后,在网页就可以调用这些变量,就和spring的那一套流程类似,jsp通过jstl调用
        vh.Put("title", "员工信息");
        vh.Put("zwjyzsbh", zwjyzsbh);
        vh.Put("zsfwdp", zsfwdp);
        vh.Put("zsfwdc", zsfwdc);
        vh.Put("zsfwdxian", zsfwdxian);
        
        pash = Directory.GetCurrentDirectory();//工程的Debug所在目录
        pash = pash.Replace("\\", "/");
        pashimg = pash + "\\template\\JY_DYJY_SJZWJYZS.jpg";
        pashimg=pashimg.Replace("\\", "/");
        vh.Put("pash", pash);
        vh.Put("pashimg", pashimg);
        
        //新建窗体FrmWebBrowser,拉一个控件webBrowser,在该控件显示所要打印的页面page.htm
        String htm = vh.Display("page.htm");
        FrmWebBrowser frmView = new FrmWebBrowser();
        frmView.webBrowser1.DocumentText = htm;
    }  
}  

 

2、要显示的页面:page.htm,(自己新建一个)

<!DOCTYPE html>
<HTML>
<HEAD>
<TITLE>$title</TITLE>
<META http-equiv=Content-Type content="text/html; charset=UTF-8">
<META content="$title" name=description>
<META content="$title" name=keywords>
<script type="text/javascript" src="http://127.0.0.1:8000/CLodopfuncs.js"></script> 
<script type="text/javascript" src="http://www.mamicode.com/$pash/template/jquery-1.11.0.min.js"></script>
<script type="text/javascript" src="http://www.mamicode.com/$pash/template/bootstrap.min.js"></script>
<script type="text/javascript" src="http://www.mamicode.com/$pash/template/jquery.bootstrap.js"></script>
<script type="text/javascript" src="http://www.mamicode.com/$pash/template/jquery.form.js"></script>
<script type="text/javascript" src="http://www.mamicode.com/$pash/template/jquery.validate.min.js"></script>
<script type="text/javascript" src="http://www.mamicode.com/$pash/template/messages_bs_zh.js"></script>
<script type="text/javascript" src="http://www.mamicode.com/$pash/template/LodopFuncs.js"></script>
<script>
    $(function () {
        LODOP = getLodop();
        LODOP.NewPage();
        LODOP.ADD_PRINT_TEXT(200, 150, 375, 22, "$zwjyzsbh");//(要打印的文本,前四个是坐标,最后是获取前面put的变量)
        LODOP.ADD_PRINT_TEXT(170, 270, 75, 22, "$zsfwdp");
        LODOP.ADD_PRINT_TEXT(170, 400, 75, 22, "$zsfwdc");
        LODOP.ADD_PRINT_TEXT(170, 400, 75, 22, "$zsfwdxian");
        
        LODOP.ADD_PRINT_SETUP_BKIMG("<img width=‘760‘ height=‘1122‘ border=‘0‘ src=http://www.mamicode.com/‘$pashimg‘>");//增加背景图
        LODOP.SET_SHOW_MODE("BKIMG_IN_PREVIEW", 1);//打印预览是否显示背景图,1:显示
        LODOP.PREVIEW();//预览
        });
</script>

</HEAD>

<body>

</body>
</HTML>

顺便看下这个: http://blog.csdn.net/lovelylord/article/details/43405927

 

3、FrmWebBrowser窗体,用来显示要打印的页面

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3、VelocityHelper模板类,用来生成html,需要引入NVelocity。不用改

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using NVelocity;
using NVelocity.App;
using NVelocity.Exception;
using NVelocity.Runtime;
using System.IO;
using Commons.Collections;
using NVelocity.Context;

namespace gjjy
{
    class NVelocityHelper
    {   /// 
        /// NVelocity模板工具类 VelocityHelper
        /// 
        public class VelocityHelper
        {
        private VelocityEngine velocity = null;
        private IContext context = null;
        /// 
        /// 构造函数
        /// 
        ///模板文件夹路径
        public VelocityHelper(string templatDir)
        {
        Init(templatDir);
        }
        /// 
        /// 无参数构造函数
        /// 
        public VelocityHelper() { ;}
        /// 
        /// 初始话NVelocity模块
        /// 
        ///模板文件夹路径
        public void Init(string templatDir)
        {
        //创建VelocityEngine实例对象
        velocity = new VelocityEngine();
 
        //使用设置初始化VelocityEngine
        ExtendedProperties props = new ExtendedProperties();
        props.AddProperty(RuntimeConstants.RESOURCE_LOADER, "file");
        props.AddProperty(RuntimeConstants.FILE_RESOURCE_LOADER_PATH, templatDir);
        props.AddProperty(RuntimeConstants.INPUT_ENCODING, "utf-8");
        props.AddProperty(RuntimeConstants.OUTPUT_ENCODING, "utf-8");
        velocity.Init(props);
 
        //为模板变量赋值
        context = new VelocityContext();
        }
        /// 
        /// 给模板变量赋值
        /// 
        ///模板变量
        ///模板变量值
        public void Put(string key, object value)
        {
            if (context == null)
            context = new VelocityContext();
            context.Put(key, value);
        }
        /// 
        /// 显示模板
        /// 
        ///模板文件名
        public String Display(string templatFileName)
            {
                //从文件中读取模板
                Template template = velocity.GetTemplate(templatFileName);
                //合并模板
                StringWriter writer = new StringWriter();
                template.Merge(context, writer);
                return writer.ToString();
            }
        }
    }
}

 4、检查电脑是否已安装Lodop

public bool checkLodop()
{
    Microsoft.Win32.RegistryKey uninstallNode = Microsoft.Win32.Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall");
    foreach (string subKeyName in uninstallNode.GetSubKeyNames())
    {
        Microsoft.Win32.RegistryKey subKey = uninstallNode.OpenSubKey(subKeyName);
        object displayName = subKey.GetValue("DisplayName");
        if (displayName != null)
        {
            //MessageBox.Show(displayName.ToString());
            if (displayName.ToString().Contains("C-Lodop(32-bit)"))
            {
                return true;
                 //MessageBox.Show(displayName.ToString());   
            }
        }
    }
    return false;
}

 自动弹出安装界面

System.Diagnostics.Process.Start(Application.StartupPath + "\\" + "CLodopPrint_Setup_for_Win32NT_2.047.exe");

 

C# Lodop实现打印