[英].Net Excel Interop Deleting a worksheet
I'm trying to delete a worksheet from a excel document from a.Net c# 3.5 application with the interop Excel class (for excel 2003).
我嘗試了很多事情,例如:
Worksheet worksheet = (Worksheet)workbook.Worksheets[1];
worksheet.Delete();
它不起作用,也不會引發任何錯誤......
經過一個多小時的尋找,我找到了答案:
xlApp.DisplayAlerts = false;
worksheet.Delete();
xlApp.DisplayAlerts = true;
在處理刪除Excel Worksheets時,需要了解兩件重要的事情:
Excel 互操作從 1 開始計數(而不是從零開始),因此,刪除第二項將導致第三項取而代之。因此,刪除工作表的正確方法是從最后一項到第一項:
// Remove LAST worksheet MyWorkBook.Worksheets[3].Delete(); // and only then remove the second (which is the last one) MyWorkBook.Worksheets[2].Delete();
或者,您可以刪除列表中的第二項 ([2])兩次,這將為您提供相同的結果。
當您只剩下一個工作表時,以下行將引發異常:
MyWorkBook.Worksheets[1].Delete();
同樣重要的是要注意工作簿必須至少包含一個工作表; 這意味着您不能刪除工作簿中的所有工作表。
嘗試按名稱查找工作表:
var app = new Microsoft.Office.Interop.Excel.Application();
var workbook = app.Workbooks.Add();
((Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets["Sheet3"]).Delete();
我們從 c# 控制台應用程序中刪除 excel 工作表,如下所示:
Microsoft.Office.Interop.Excel.Worksheet worksheet =
(Worksheet)workbook.Worksheets["Worksheet_Name" (or) "Countings"];
worksheet.Delete();
我們可以像這樣刪除工作表
Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application();
if (xlApp == null)
{
return;
}
xlApp.DisplayAlerts = false;
string filePath = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location)
+ "\\Sample.xlsx";
Excel.Workbook xlWorkBook = xlApp.Workbooks.Open(filePath, 0, false, 5, "", "", false, Microsoft.Office.Interop.Excel.XlPlatform.xlWindows, "", true, false, 0, true, false, false);
Excel.Sheets worksheets = xlWorkBook.Worksheets;
worksheets[4].Delete();
worksheets[3].Delete();
xlWorkBook.Save();
xlWorkBook.Close();
releaseObject(worksheets);
releaseObject(xlWorkBook);
releaseObject(xlApp);
並使用它
static void releaseObject(object obj)
{
try
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
obj = null;
}
catch (Exception ex)
{
obj = null;
throw ex;
}
finally
{
GC.Collect();
}
}
Microsoft.Office.Interop.Excel.Worksheet worksheet = Microsoft.Office.Interop.Excel.Worksheet)xlWorkBook.Worksheets[1];
worksheet.Delete();
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