Question

I’ve ran up against a frustrating little issue when knocking together a page in C# and Silverlight (v5): I can’t use the DateTime.ToOADate() function! Intellisense doesn’t “see” it when typing, and if I manually type it anyway:

double OAdate()
{          
    double oadate= DateTime.ToOADate();
    return oadate;
}

.. I’m told:

An object reference is required for the non-static field, method, or
property ‘System.DateTime.ToOADate()’

I know I’m doing something daft … but what? FromOADate() works fine.

Answer 1

You need to have date time object to call ToOADate method.

ToOADate is Convert the value of instance to the equivalent OLE Automation date. it not a static method like DateTime.TryParse

try

DateTime.Now.ToOADate();

or

 DateTime MyDate = new  DateTime(1904, 12, 12, 1,4,1);
 double MyDouble = MyDate.ToOADate();