Question

I just populate TextBlock with some text which has ! (exclamation mark) at the end. And ! appears in front of the text.

So instead of

some text!

I see

!some
text

How is it possible?

Any clue?

Thank you!

---

CODE

  TextBlock tb = new TextBlock();

  tb.Text = Text;

  lstItems.Children.Add(tb); // lstItems is a StackPanel

Answer 1

Most likely, an ancestor of the TextBlock has its FlowDirection set to RightToLeft. Try resetting it to LeftToRight:

tb.FlowDirection = FlowDirection.LeftToRight;

Edit: The reason is a bit complex to explain; it has to do with how bi-directional text is rendered. From Wikipedia:

Punctuation characters […] can appear in both LTR and RTL scripts. They are called “weak” characters because they do not contain any directional information. So it is up to the software to decide in which direction these “weak” characters will be placed.

WPF is treating your ! as separate from the rest of the text, and placing it such that it follows your direction’s flow (in this case, to the right left).