【.Net 学习系列】-- 利用Aspose转换Excel为PDF文件

功能：

1. 从数据库中查询出数据
2. 利用Aspose.cell + Excel模板绑定数据源生成Excel文件
3. 通过Aspose.pdf + 生成好的Excel生成PDF文件

实现：

查询数据，根据Excel模板生成Excel文件

var comments = SQLHelper.ExecuteScalar("SELECT TOP 1 BookingOrderComments FROM dbo.BookingOrderHead WHERE BookingOrderHeadID = 181390");
//var dt = SQLHelper.ExecuteDataTable("SELECT TOP 1 BookingOrderComments FROM dbo.BookingOrderHead WHERE BookingOrderCode = 'B1709001412'");

var dt = new DataTable("tbTest");
dt.Columns.Add("BookingOrderComments");
var dr = dt.NewRow();

// 替换Tab键（含有Tab键会导致PDF出现方块乱码）
var str = cbRepleace.Checked ? comments.ToString().Replace("\t", "    ") : comments.ToString();
dr.SetField<string>("BookingOrderComments", str);
dt.Rows.Add(dr);

var designer = new WorkbookDesigner();
//给模板对象设置数据源
designer.SetDataSource(dt);

//excel模板的地址
var excelModel = Application.StartupPath + "\\Template.xltx";
designer.Workbook = new Workbook(excelModel);

designer.Process();//全自动赋值  

var dialog = new FolderBrowserDialog();
dialog.Description = "请选择PDF文件保存路径";
if (dialog.ShowDialog() == DialogResult.OK)
{
    //新生成的excel的保存地址
    string fileToSave = dialog.SelectedPath + @"\" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".xlsx";
    if (System.IO.File.Exists(fileToSave) == true)
    {
        System.IO.File.Delete(fileToSave);
    }
    designer.Workbook.Save(fileToSave);

    txtSourcePath.Text = fileToSave;
}

生成PDF文件：

if (!Directory.Exists(txtPdfFolder.Text))
{
    Directory.CreateDirectory(txtPdfFolder.Text);
}

var book = new Workbook(txtSourcePath.Text.Trim());
var options = new Aspose.Cells.PdfSaveOptions()
{
    OnePagePerSheet = true
};

var pdfStream = new MemoryStream();
book.Save(pdfStream, options);

var pdfDocument = new Document(pdfStream);

var pdfFile = this.txtPdfFolder.Text.Trim() + @"\" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".pdf";
pdfDocument.Save(pdfFile);

源代码：https://pan.baidu.com/s/1i58BDlj