>Hi,

FormattedText ft = new FormattedText("Hello", CultureInfo.CurrentCulture, FlowDirection.LeftToRight,
>new Typeface("Verdana"), 100, Brushes.Black);
>double d = ft.MinWidth;

Second line throws a ArgumentNullException. Stack trace shows MS.Internal.TextFormatterImp.VerifyTextFormattingArguments(.....) Value cannot be null. Parameter name: textSource. Works fine IF DrawingContext.DrawText(ft,0,0) is executed between the two lines.
>Anyone?

That is really a weird one.

What's even weirder... if I hover over and browse the properties for ft in vs... it doesn't throw the error.

Thought it might be timing, but that wasn't it.

I added an able to reproduce response to your bug report.