我正在寻找一个 MsExcel（.xsl 和 .xlsx）到 PDF 转换器/库或 API。我想要它用于我的 C# .Net 应用程序。
我喜欢商业图书馆，但买不起。
【问题讨论】：
我尝试过通过第三方包通过 Interop 直接进行 COM 交互，但如果出于成本考虑而无法选择，我将使用 Office 2007/2010 的内置导出功能来完成此操作。
你需要调用的方法是Workbook.ExportAsFixedFormat()
以下是我如何将其用作导出功能的示例：
public bool ExportWorkbookToPdf(string workbookPath, string outputPath)
{
// If either required string is null or empty, stop and bail out
if (string.IsNullOrEmpty(workbookPath) || string.IsNullOrEmpty(outputPath))
{
return false;
}
// Create COM Objects
Microsoft.Office.Interop.Excel.Application excelApplication;
Microsoft.Office.Interop.Excel.Workbook excelWorkbook;
// Create new instance of Excel
excelApplication = new Microsoft.Office.Interop.Excel.Application();
// Make the process invisible to the user
excelApplication.ScreenUpdating = false;
// Make the process silent
excelApplication.DisplayAlerts = false;
// Open the workbook that you wish to export to PDF
excelWorkbook = excelApplication.Workbooks.Open(workbookPath);
// If the workbook failed to open, stop, clean up, and bail out
if (excelWorkbook == null)
{
excelApplication.Quit();
excelApplication = null;
excelWorkbook = null;
return false;
}
var exportSuccessful = true;
try
{
// Call Excel's native export function (valid in Office 2007 and Office 2010, AFAIK)
excelWorkbook.ExportAsFixedFormat(Microsoft.Office.Interop.Excel.XlFixedFormatType.xlTypePDF, outputPath);
}
catch (System.Exception ex)
{
// Mark the export as failed for the return value...
exportSuccessful = false;
// Do something with any exceptions here, if you wish...
// MessageBox.Show...
}
finally
{
// Close the workbook, quit the Excel, and clean up regardless of the results...
excelWorkbook.Close();
excelApplication.Quit();
excelApplication = null;
excelWorkbook = null;
}
// You can use the following method to automatically open the PDF after export if you wish
// Make sure that the file actually exists first...
if (System.IO.File.Exists(outputPath))
{
System.Diagnostics.Process.Start(outputPath);
}
return exportSuccessful;
}
【讨论】：
这些文章会对你有所帮助！
EDIT：我找到了这个类函数。
public DataSet GetExcel(string fileName)
{
Application oXL;
Workbook oWB;
Worksheet oSheet;
Range oRng;
try
{
// creat a Application object
oXL = new ApplicationClass();
// get WorkBook object
oWB = oXL.Workbooks.Open(fileName, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value,
Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value,
Missing.Value, Missing.Value);
// get WorkSheet object
oSheet = (Microsoft.Office.Interop.Excel.Worksheet)oWB.Sheets[1];
System.Data.DataTable dt = new System.Data.DataTable("dtExcel");
DataSet ds = new DataSet();
ds.Tables.Add(dt);
DataRow dr;
StringBuilder sb = new StringBuilder();
int jValue = oSheet.UsedRange.Cells.Columns.Count;
int iValue = oSheet.UsedRange.Cells.Rows.Count;
// get data columns
for (int j = 1; j <= jValue; j++)
{
dt.Columns.Add("column" + j, System.Type.GetType("System.String"));
}
//string colString = sb.ToString().Trim();
//string[] colArray = colString.Split(':');
// get data in cell
for (int i = 1; i <= iValue; i++)
{
dr = ds.Tables["dtExcel"].NewRow();
for (int j = 1; j <= jValue; j++)
{
oRng = (Microsoft.Office.Interop.Excel.Range)oSheet.Cells[i, j];
string strValue = oRng.Text.ToString();
dr["column" + j] = strValue;
}
ds.Tables["dtExcel"].Rows.Add(dr);
}
return ds;
}
catch (Exception ex)
{
Label1.Text = "Error: ";
Label1.Text += ex.Message.ToString();
return null;
}
finally
{
Dispose();
}
编辑 2：我还发现这篇文章对你有帮助！
【讨论】：
尝试以下方法：
或
http://www.html-to-pdf.net/excel-library.aspx
我认为您也可以操纵 IText 来执行此操作：http://www.itextpdf.com/
还有http://www.aspose.com，但不是特别便宜。
以下关于堆栈溢出的答案可能会有所帮助。 https://stackoverflow.com/questions/891531/convert-xls-doc-files-to-pdf-with-c 和 https://stackoverflow.com/questions/769246/xls-to-pdf-conversion-inside-net .第二个答案有一个有趣的解决方案自动化开放办公室！
【讨论】：