我创建了一个新的Web项目。使用NuGet包和附件添加了EPPlus库。然后从codeplex EPPlus页面添加以下代码。
FileInfo newFile = new FileInfo(@"c:\sample1.xlsx");
if (newFile.Exists)
{
newFile.Delete(); // ensures we create a new workbook
newFile = new FileInfo(@"c:\sample1.xlsx");
}
using (ExcelPackage package = new ExcelPackage(newFile))
{
// add a new worksheet to the empty workbook
ExcelWorksheet worksheet = package.Workbook.Worksheets.Add("Inventory");
//Add the headers
worksheet.Cells[1, 1].Value = "ID";
worksheet.Cells[1, 2].Value = "Product";
worksheet.Cells[1, 3].Value = "Quantity";
worksheet.Cells[1, 4].Value = "Price";
worksheet.Cells[1, 5].Value = "Value";
//Add some items...
worksheet.Cells["A2"].Value = 12001;
worksheet.Cells["B2"].Value = "Nails";
worksheet.Cells["C2"].Value = 37;
worksheet.Cells["D2"].Value = 3.99;
worksheet.Cells["A3"].Value = 12002;
worksheet.Cells["B3"].Value = "Hammer";
worksheet.Cells["C3"].Value = 5;
worksheet.Cells["D3"].Value = 12.10;
worksheet.Cells["A4"].Value = 12003;
worksheet.Cells["B4"].Value = "Saw";
worksheet.Cells["C4"].Value = 12;
worksheet.Cells["D4"].Value = 15.37;
//Add a formula for the value-column
worksheet.Cells["E2:E4"].Formula = "C2*D2";
//Ok now format the values;
using (var range = worksheet.Cells[1, 1, 1, 5])
{
range.Style.Font.Bold = true;
range.Style.Fill.PatternType = ExcelFillStyle.Solid;
range.Style.Fill.BackgroundColor.SetColor(Color.DarkBlue);
range.Style.Font.Color.SetColor(Color.White);
}
worksheet.Cells["A5:E5"].Style.Border.Top.Style = ExcelBorderStyle.Thin;
worksheet.Cells["A5:E5"].Style.Font.Bold = true;
worksheet.Cells[5, 3, 5, 5].Formula = string.Format("SUBTOTAL(9,{0})", new ExcelAddress(2, 3, 4, 3).Address);
worksheet.Cells["C2:C5"].Style.Numberformat.Format = "#,##0";
worksheet.Cells["D2:E5"].Style.Numberformat.Format = "#,##0.00";
//Create an autofilter for the range
worksheet.Cells["A1:E4"].AutoFilter = true;
worksheet.Cells["A2:A4"].Style.Numberformat.Format = "@"; //Format as text
worksheet.Cells.AutoFitColumns(0); //Autofit columns for all cells
// lets set the header text
worksheet.HeaderFooter.OddHeader.CenteredText = "&24&U&\"Arial,Regular Bold\" Inventory";
// add the page number to the footer plus the total number of pages
worksheet.HeaderFooter.OddFooter.RightAlignedText =
string.Format("Page {0} of {1}", ExcelHeaderFooter.PageNumber, ExcelHeaderFooter.NumberOfPages);
// add the sheet name to the footer
worksheet.HeaderFooter.OddFooter.CenteredText = ExcelHeaderFooter.SheetName;
// add the file path to the footer
worksheet.HeaderFooter.OddFooter.LeftAlignedText = ExcelHeaderFooter.FilePath + ExcelHeaderFooter.FileName;
worksheet.PrinterSettings.RepeatRows = worksheet.Cells["1:2"];
worksheet.PrinterSettings.RepeatColumns = worksheet.Cells["A:G"];
// Change the sheet view to show it in page layout mode
worksheet.View.PageLayoutView = true;
// set some document properties
package.Workbook.Properties.Title = "Invertory";
package.Workbook.Properties.Author = "Jan Källman";
package.Workbook.Properties.Comments = "This sample demonstrates how to create an Excel 2007 workbook using EPPlus";
// set some extended property values
package.Workbook.Properties.Company = "AdventureWorks Inc.";
// set some custom property values
package.Workbook.Properties.SetCustomPropertyValue("Checked by", "Jan Källman");
package.Workbook.Properties.SetCustomPropertyValue("AssemblyName", "EPPlus");
// save our new workbook and we are done!
package.Save();
}
问题:执行此代码后,我收到以下错误:
这是我的csproj文件中EPPLus的条目:
假 .. \包\ EPPlus.3.1.3.3 \ LIB \ net35 \ EPPlus.dll
这就是packages.config的样子:
<?xml version="1.0" encoding="utf-8"?>
<packages>
<package id="EPPlus" version="3.1.3.3" targetFramework="net35" />
</packages>
无法加载文件或程序集&#39; EPPlus,Version = 3.0.0.2, Culture = neutral,PublicKeyToken = ea159fdaa78159a1&#39;或其中一个 依赖。定位程序集的清单定义没有 匹配程序集引用。 (HRESULT异常:0x80131040)
我不确定,我该怎么办?请帮忙。
谢谢
答案 0 :(得分:1)
然而愚蠢可能听起来但是我犯的错误是,我将解决方案命名为EPPlus并且系统在加载DLL时感到困惑:(。我创建了另一个以'xyz'作为名称的解决方案,我能够创建文件。
谢谢大家的帮助。
答案 1 :(得分:0)
需要注意的一点信息是,异常告诉您,您的程序正在寻找与您在项目和包文件中安装和引用的版本不同的版本。
我怀疑问题是CopyLocal
设置为False
时应设置为True.
在Visual Studio中,打开项目的引用,选择EPPlus并显示其属性。确保Copy Local
设置为True.