My codes as follow:
Parallel.ForEach(listSheets, (xlWorkSheet1) =>
{
// Excel.Worksheet xlWorkSheet1 = (Excel.Worksheet)excelbk.Worksheets["Sheet1"];
xlRange = (Excel.Range)xlWorkSheet1.Cells[xlWorkSheet1.Rows.Count, 1];
lock (xlRange)
{
// nRows = (long)xlRange.get_End(Excel.XlDirection.xlUp).Row;
nRows = xlWorkSheet1.UsedRange.Cells.Rows.Count;
xlRange = (Excel.Range)xlWorkSheet1.Rows["5:" + nRows, Type.Missing];
xlRange.Sort(xlRange.Columns[clnum1, Type.Missing],
Excel.XlSortOrder.xlAscending,
xlRange.Columns[clnum2, Type.Missing],
Type.Missing,
Excel.XlSortOrder.xlAscending,
Type.Missing,
Excel.XlSortOrder.xlAscending,
Excel.XlYesNoGuess.xlNo,
Type.Missing,
Type.Missing,
Excel.XlSortOrientation.xlSortColumns,
Excel.XlSortMethod.xlStroke,
Excel.XlSortDataOption.xlSortTextAsNumbers,
Excel.XlSortDataOption.xlSortNormal,
Excel.XlSortDataOption.xlSortNormal);
Console.WriteLine("Sheet{0} have been sorted", xlWorkSheet1.Name);
}
}
listSheets is defined as a List,and when i debug it,it shows error that the COM exception that problem have been run yet.
System.Runtime.InteropServices.COMException Application is busy (RPC_E_CALL_REJECTED 0x80010001) Call was rejected by callee (RPC_E_SERVERCALL_RETRYLATER 0x8001010A)
Excel does not support multi-threaded interop calls. Internally, it is multi-threaded. For instance, you can enable multi-threaded recalculations in the options page, for a significant performance boost. However, you cannot peform multi-threaded interop, I'm afraid.
As code4life says: Excel does not support multi-threaded interop calls. And since Excel's Sort method is already multi-threaded in the latest versions there is no point in trying to multi-thread something thats already multi-threaded.
User contributions licensed under CC BY-SA 3.0