C# 打印小票 POS

时间:2021-07-16 01:00:10

C# 打印小票 POS

       最近在写一个餐饮的收银系统,以前从来没有碰过打印机这玩意。感觉有些无从下手,在前面做报表时,总想找第三方的控件来用用,结果始终不行没搞定、没研究透,催得急没办法还是的动手自己写个,哈...查了些相关的资料,感觉也不难,没多久就搞定了。主要用到PrintDocument和PrintPreviewDialog两个对象,一个用来打印,一个用来阅览,如果在设置模板OK后,若果人流量比较多的话就直接打印不必在阅览,这样会快好多。

C# 打印小票 POSC# 打印小票 POS
private void button2_Click(object sender, EventArgs e)
 
{
 
    //打印预览            

    PrintPreviewDialog ppd = new PrintPreviewDialog();
 
    PrintDocument pd = new PrintDocument();
 
    

    //设置边距
 
    Margins margin = new Margins(20, 20, 20, 20);
 
    pd.DefaultPageSettings.Margins = margin;
 
    

    ////纸张设置默认
 
    PaperSize pageSize = new PaperSize("First custom size", getYc(58), 600);
 
    pd.DefaultPageSettings.PaperSize = pageSize;
 
    

    //打印事件设置            

    pd.PrintPage += new PrintPageEventHandler(this.pd_PrintPage);
 
    ppd.Document = pd;
 
    ppd.ShowDialog();
 
    

    try
 
    {
 
        pd.Print();
 
    }
 
    catch (Exception ex)
 
    {
 
        MessageBox.Show(ex.Message, "打印出错", MessageBoxButtons.OK, MessageBoxIcon.Error);
 
        pd.PrintController.OnEndPrint(pd, new PrintEventArgs());
 
    }
 
}
View Code

这里的代码主要是获取需要打印的内容,在实际运用中这里要改成动态的

C# 打印小票 POSC# 打印小票 POS
private int getYc(double cm) 

{
 
    return (int)(cm / 25.4) * 100;
 
}
 
 
 
public string GetPrintStr() 

{
 
    StringBuilder sb = new StringBuilder(); 

 
 
    string tou = "伊尹餐饮公司";
 
    string address = "深圳市罗湖区东门老街29号";
 
    string saleID = "2010930233330";
 
    string item = "项目";
 
    decimal price = 25.00M;
 
    int count = 5;
 
    decimal total = 0.00M;
 
    decimal fukuan = 500.00M;
 
    

    sb.Append("            " + tou + "     /n");
 
    sb.Append("-----------------------------------------------------------------/n");
 
    sb.Append("日期:" + DateTime.Now.ToShortDateString() + "  " + "单号:" + saleID + "/n");
 
    sb.Append("-----------------------------------------------------------------/n");
 
    sb.Append("项目" + "/t/t" + "数量" + "/t" + "单价" + "/t" + "小计" + "/n");
 
    for (int i = 0; i < count; i++)
 
    {
 
        decimal xiaoji = (i+1) * price;               

        sb.Append(item + (i+1) + "/t/t" + (i+1) + "/t" + price + "/t" + xiaoji);
 
        total += xiaoji;
 
 
 
        if (i != (count))
 
            sb.Append("/n");
 
    }
 
 
 
    sb.Append("-----------------------------------------------------------------/n");
 
    sb.Append("数量: " + count + " 合计:   " + total+"/n");
 
    sb.Append("付款: 现金" + "    " + fukuan);
 
    sb.Append("         现金找零:" + "   " + (fukuan - total) + "/n");
 
    sb.Append("-----------------------------------------------------------------/n");
 
    sb.Append("地址:" + address + "/n");
 
    sb.Append("电话:123456789   123456789/n");
 
   

    sb.Append("                 谢谢惠顾欢迎下次光临                    ");
 
    return sb.ToString();
 
}
View Code

打印效果如下:

 C# 打印小票 POS