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I have more then 2000 record and when i am printing the report in .xls file
then after printing the some column of row 507 the following exception error occurs

System.Runtime.InteropServices.COMException was unhandled by user code
  Message="Exception from HRESULT: 0x800A03EC"

What I have tried:

I am trying to wirte a excel report .

private void WriteLeagueMemberDataReportReport(Worksheet _worksheet, IList memberDetailList)
        int rowCounter = 2;
         foreach (LeagueMemberDataDetail instance in memberDetailList)
             _worksheet.Cells[rowCounter, 1] = instance.memberRecNo;
             _worksheet.Cells[rowCounter, 2] = instance.firstName;
             _worksheet.Cells[rowCounter, 3] = instance.lastName;
             _worksheet.Cells[rowCounter, 4] = instance.dob??instance.dob;
             _worksheet.Cells[rowCounter, 5] = instance.emailId ?? instance.emailId;
             _worksheet.Cells[rowCounter, 6] = instance.bsbNo ?? instance.bsbNo;
             _worksheet.Cells[rowCounter, 7] = instance.accountNo ?? instance.accountNo;
             _worksheet.Cells[rowCounter, 8] = instance.centreName ?? instance.centreName;
             _worksheet.Cells[rowCounter, 8] = instance.leagueName ?? instance.leagueName;
             _worksheet.Cells[rowCounter, 9] = instance.tbaPaymentMethod ?? instance.tbaPaymentMethod;
      //  _worksheet.Protect("abc@123$", true, true, false, true, true, true, true, true, true, false, false, false,
                      //     false, false, false);

Updated 14-May-16 0:37am
Karthik_Mahalingam 14-May-16 3:33am    
which column
did u debug?
what is the inner exception ?
Siddharth Rai 14-May-16 5:45am    
just after the instance.dob??instance.dob;

instance.dob = {01/01/1899 12:00:00 AM}

Karthik_Mahalingam 14-May-16 5:49am    
is the value null at 506 index of the collection?
Siddharth Rai 14-May-16 6:10am    
on 506 instance.dob = {20/02/2019 12:00:00 AM}
on 507 instance.dob ={01/01/1899 12:00:00 AM}

Note- i have been set the dob column as custom date type on excel template

Exception from HRESULT: 0x800A03EC
there is no inner exception

thanking you
instance.dob !=null ?instance.dob.Value.ToString("dd/MM/yyyy"):"";

via above line i got problem fixed but i still i am unaware what was the problem .
Karthik_Mahalingam 14-May-16 6:11am    
hmm yes check my solution.

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You are getting the error because 4th Column in the Excel is a Date type Column
Excel Cells Mininum Date Value is 01/01/1900
So when you are trying to insert a date value which is less than 1900, it will throw an exception

You can validate the date value as below
_worksheet.Cells[rowCounter, 4] = GetExcelValidDate (instance.dob);

For Date Column:
private static DateTime? GetExcelValidDate(DateTime? date)
          DateTime? temp = null;
          if (date.HasValue)
              temp = date.Value.Year < 1900 ? temp : date;
          return temp;

To convert it as text column
private static string GetExcelValidDate(DateTime? date)
           string temp = null;
           if (date.HasValue)
               temp = date.Value.ToString("MM/dd/YYYY");
           return temp;
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Bug unrelated to your error message.
_worksheet.Cells[rowCounter, 8] = instance.centreName ?? instance.centreName;
_worksheet.Cells[rowCounter, 8] = instance.leagueName ?? instance.leagueName;

You store 2 values in column 8.
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