如何在客户端打印机上从 ASP.NET CrystalReport 打印

问题描述

如何在客户端打印机上从 CrystalReport (ASP.NET) 打印报表.

How do I print report from CrystalReport (ASP.NET) on a client side printer.

推荐答案

你有两个选择:

1. 将 PrintMode 设置为 ActiveX 或 PDF，并让 Crystal 报表查看器工具栏来处理它.
2. 在 iFrame 中创建 pdf，并使用 JavaScript 触发打印命令.

为了简化用户必须在每个客户端上安装的内容，我使用了隐藏的 pdf 选项和一个单独的按钮来打印到客户端.

To simplify what the users had to install on each client I went with the hidden pdf option and a separate button to print to client.

在 aspx 页面上，我使用 1px x 1px 的 pdf 嵌入对象填充了一个 asp 文字，因此它对用户不可见.然后在页面加载时调用 printToPrinter 方法.

On the aspx page I have an asp literal that I populate with the pdf embeded object at 1px x 1px so it isn't visible to the user. Then on pageload call the printToPrinter method.

// On server side
// Export to PDF
Guid imageGuid = Guid.NewGuid();
string _pdfName = String.Format(@"{0}{1}{2}.pdf", _pdfPath, _reportName, imageGuid);
// expport to unique filename
// ...
// Display the pdf object 
_sb.AppendFormat("<object ID="pdfObject" type="application/pdf" data="{0}" src="{0}" style="width: {1}; height: {2}; ", _pdf2Name, _width, _height);
_sb.AppendLine("z-index:1; display: block; border: 1px solid #cccccc; top: 0; left: 0; position: absolute;-+ ">");
_sb.Append("</object>");
pdfLiteral.Text = _sb.ToString();
pdfLiteral.Visible = true;

// javascript
// on document load call the printWithDialog function
 var code = function(){
 try
     {
        var pdf = $get('pdfObject');
        if (pdf == null)
            return;
        try {
            pdf.printWithDialog();
        }
        catch (err) {
            alert('Please Install Adobe Acrobat reader to use this feature');
        } 
     }
     catch(err)
     {
     }
  };
window.setTimeout(code, 1000);

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