Why doesn't the conditional operator correctly allow the use of "null" for assignment to nullable ty

Posted by Daniel Coffman on Stack Overflow See other posts from Stack Overflow or by Daniel Coffman
Published on 2010-03-15T22:18:57Z Indexed on 2010/03/15 22:19 UTC
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c#

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.NET

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nullable

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conditional-operator

This will not compile, stating "Type of conditional expression cannot be determined because there is no implicit conversion between 'System.DateTime' and ''"

task.ActualEndDate = TextBoxActualEndDate.Text != "" ? DateTime.Parse(TextBoxActualEndDate.Text) : null;
This works just fine

if (TextBoxActualEndDate.Text != "") task.ActualEndDate = DateTime.Parse(TextBoxActualEndDate.Text); else task.ActualEndDate = null;

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