the null DateTime datatype problem, in a web service

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Hi

I have a web method as shown below with nullable DateTime type as parameter.
While consuming the web service, it is expecting DateTime value and not accepting null.

[WebMethod()]
public void UpdateRecord(DateTime? updatedDT, ....)
{
}

When calling the function as shown below

UpdateRecord(null, ....);
not able to pass null to DateTime parameter.

Please suggest an appropriate procedure to achieve the same.

Posted 18-Nov-13 22:56pm

Member 10322580

Updated 18-Nov-13 23:21pm

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OriginalGriff · Answer 1 · 2013-11-18T23:33:00

Assuming you can't modify the UpdateRecord method to support nullable types, then you could:
1) Use the Null Coalescing operator to convert it to a DateTime:

C#

UpdateRecord(myNullableDateTime ?? DateTime.MinValue);

2) Create a version of UpdateRecord which does accept nullable types and calls the original version via the null Coalescing operator as above.

Or I may have misread that: but C# will allow this perfectly happily:

C#

...
UpdateRecord(null);
    }
void UpdateRecord(DateTime? dt)
    {
    ...
    }

So I don;t think so...