WPF String Formatting "String was not recognized as a valid DateTime."

Question

I get this error when trying to have a WPF application try to format a string field as a datetime object:

<DataGridTextColumn Binding="{Binding Date, StringFormat={}{0:dd-MM-yyyy}}" Header="Date"/>

And the error I seem to be getting is:

"String was not recognized as a valid DateTime."

How do you fix this?

Answer 1

In my experience this error is caused by a lack of a set locale in the Window header, that is:

xml:lang="en-GB"

Or whatever is appropriate needs to be inserted into the Window header and that should fix the problem.