Error reading a date from an excel spreadsheet

Posted on 2011-10-11
Last Modified: 2012-05-12
Hello experts:
I'm having an issue getting a date colum from excel into another field.

double d = 38449.0;
DateTime dt = DateTime.FromOADate(d);
 dt = Convert.ToDateTime(range.Cells[rCnt, cCnt]);

the last statement generates this error:

Invalid cast exception was unhandled
Unable to cast COM object of type 'System.__ComObject' to interface type 'System.IConvertible'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{805E3B62-B5E9-393D-8941-377D8BF4556B}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)).
Question by:lancerxe
    1 Comment
    LVL 26

    Accepted Solution

    something wrong is happening here and see this link and according to msdn it will always throw exception

    the following link provides how datetime can be initialized in .Net

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