Hi RedRoseASP,
I've made the program in VS2010 and Excel2010. It's a Workbook Project. After running it, it won't throw
such an exception. So I'm not sure if I have missed something. Here is the code snippet. Please check to see if
it will solve the problem.
private void Sheet1_Startup(object sender, System.EventArgs e)
{
Excel.Application thisApp=this.Application;
Excel.Workbook mybook = thisApp.Workbooks[1] as Excel.Workbook;
mybook.Protect();
Excel.Worksheet sheet=thisApp.Worksheets[1] as Excel.Worksheet;
sheet.Protect("aaa", this.ProtectDrawingObjects,
true, this.ProtectScenarios, this.ProtectionMode,
this.Protection.AllowFormattingCells,
this.Protection.AllowFormattingColumns,
this.Protection.AllowFormattingRows,
this.Protection.AllowInsertingColumns,
this.Protection.AllowInsertingRows,
this.Protection.AllowInsertingHyperlinks,
this.Protection.AllowDeletingColumns,
this.Protection.AllowDeletingRows,
this.Protection.AllowSorting,
this.Protection.AllowFiltering,
this.Protection.AllowUsingPivotTables);
Excel.Range copyRange = sheet.get_Range("D1","D1");
sheet.Unprotect("aaa");
copyRange.Select();
copyRange.Copy(System.Type.Missing);
int lastRow = ((Excel.Range)sheet.Cells[7, 3]).get_End(Excel.XlDirection.xlDown).Row;
string START_AT_CELL = "A1";
Excel.Range pasteRange = sheet.get_Range(START_AT_CELL, "A" + lastRow.ToString()); ;
pasteRange.PasteSpecial(Excel.XlPasteType.xlPasteFormulas, Excel.XlPasteSpecialOperation.xlPasteSpecialOperationNone, false, false);
}
In the Sheet1 of Workbook I've set the value of B1 to 1 and C1 to 4. Add the SUM formula to D1. Then copy the
formula in D1 to all the A columns of the Sheet1. If I misunderstood you or any further questions, please feel free
to contact. Also here is a link about the issue of "Change in behavior from Office2007 RTM to SP2 when Sheet.Unprotect is called":
http://blogs./b/vsod/archive/2009/09/11/issue-change-in-behavior-from-office-2007-rtm-to-sp2-when-sheet-unprotect-is-called.aspxHope it will be helpful. Thank you!
Best Regards,
Amy Li
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