Winforn中使用FastReport实现点击导出按钮PDF预览并弹出另存为对话框

小咪咪 2023-10-11 13:51 53阅读 0赞

## 场景 ##

FastReport安装包下载、安装、去除使用限制以及工具箱中添加控件：

[https://blog.csdn.net/BADAO\_LIUMANG\_QIZHI/article/details/100893794][https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_100893794]

Winform中使用FastReport实现简单的自定义PDF导出：

[https://blog.csdn.net/BADAO\_LIUMANG\_QIZHI/article/details/100920681][https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_100920681]

参照上面实现使用FastReport导出PDF的实现后。

如果要在点击导出按钮后同时进行PDF预览并弹出另存为对话框。

效果如下：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70][]

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## 实现 ##

新建窗体并拖拽一个button和FastReport的PreviewControl

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 1][]

在button的点击事件中

首先加载frm模板文件

Report report = new Report();
    //获取项目目录
    string baseDir = System.Windows.Forms.Application.StartupPath;
    //拼接模板文件目录
    var reportFile = Path.Combine(baseDir + @"\data\Report", "ExportPDF.frx");
    //先清理一下
    report.Clear();
    //然后加载模板文件
    report.Load(reportFile);

对模板中的TextObject进行赋值

foreach (Control ctl in this.panelControl1.Controls)
                {
                    string[] strs = ctl.Name.Split('_');
                    if (strs.Length > 1)
                    {
                        string changeText = null;
                        if (strs[1].Equals("Date"))
                        {
                            //日期处理
                            DateEdit dateEdit = ctl as DateEdit;
                            DateTime date = (DateTime)dateEdit.EditValue;
                            changeText = date.ToLongDateString().ToString();
                        }else if (strs[1].Equals("Time"))
                        {
                            //时间处理
                            TimeEdit dateEdit = ctl as TimeEdit;
                            DateTime time = (DateTime)dateEdit.EditValue;
                            changeText = time.ToLongTimeString().ToString();
                        }
                        else
                        {
                            changeText = ctl.Text;
                        }
                        //找到 Name属性为T的控件
                        var t = report.FindObject("Text_" + strs[1]) as TextObject;
                        if (t != null)
                        {
                            //修改控件值
                            t.Text = changeText;
                        }
                    }
                }

对模板中的图片控件PictureObject进行设置照片源

var graph = report.FindObject("Picture2") as PictureObject;
    //获取图像
    System.Drawing.Image image = MainViewContent.mainViewContent.zedGraphControl1.GetImage();
    //照片旋转90度
    image.RotateFlip(RotateFlipType.Rotate90FlipNone);
    graph.Image = image;

绑定并显示预览窗口

//绑定预览控件 不然会弹出新的窗口
    report.Preview = this.previewControl1; 
    //显示预览窗口
    report.Prepare();
    report.ShowPrepared();

显示另存为窗口

//显示另存为窗口
    SaveFileDialog saveDialog = new SaveFileDialog();
    //设置默认文件扩展名。
    saveDialog.DefaultExt = "pdf";
    //设置当前文件名筛选器字符串，该字符串决定对话框的“另存为文件类型”或“文件类型”框中出现的选择内容。
    saveDialog.Filter = "pdf文件|*.pdf";
    //设置文件名
    saveDialog.FileName = fileName;
    //用默认的所有者运行通用对话框。
    saveDialog.ShowDialog();
    //如果修改了文件名，用对话框中的文件名名重新赋值
    fileName = saveDialog.FileName;
    //被点了取消
    if (fileName.IndexOf(":") < 0) return;
    FastReport.Export.Pdf.PDFExport export = new FastReport.Export.Pdf.PDFExport();
    report.Export(export, fileName);
    //即保存后打开Excel
    System.Diagnostics.Process.Start(fileName);

[https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_100893794]: https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/100893794
[https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_100920681]: https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/100920681
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20191023144816138.jpg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk=,size_16,color_FFFFFF,t_70
[https_blog.csdn.net_badao_liumang_qizhi]: https://blog.csdn.net/badao_liumang_qizhi
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20191023144829596.jpg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk=,size_16,color_FFFFFF,t_70