[英]VSTO Excel Read from Current Open Workbook
Is it possible to read from an open Excel (xlsx) using EPPlus? 是否可以使用EPPlus从打开的Excel(xlsx)中读取? I want the user to be able to open an Excel document, click the Add-In button and read data from the active worksheet. 我希望用户能够打开Excel文档,单击“加载项”按钮并从活动工作表中读取数据。 I don't need to write to the worksheet, only read from it. 我不需要写工作表,只需要阅读它即可。
Using interop I was able to get the full path to the open workbook but when I tried to actually access the workbook I got an I/O error. 使用interop,我可以获得打开的工作簿的完整路径,但是当我尝试实际访问工作簿时,出现了I / O错误。 Any ideas how to get around this? 任何想法如何解决这个问题?
var test = ( Microsoft.Office.Interop.Excel.Workbook ) Globals.ThisAddIn.Application.ActiveWorkbook;
var test2 = test.ActiveSheet;
//var test21 = ( Microsoft.Office.Interop.Excel.Workbook ) Globals.ThisAddIn.Application.ActiveSheet;
var test3 = new FileInfo( test.FullName );
using ( ExcelPackage package = new ExcelPackage( test3) ) // <--- I/O error here
{
var worksheet = package.Workbook.Worksheets[ "Sheet1" ];
string myString = String.Format( "{0}", worksheet.Cells[ 1, 1 ].Text );
}
Try non-exclusive access, like this: 尝试非独占访问,如下所示:
....
var stream = new FileStream(test.FullName, FileMode.Open, FileAccess.Read,
FileShare.ReadWrite); // <<< ---!!
using (ExcelPackage package = new ExcelPackage(stream))
{
...
}
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