DoubleEditBox does not handle comma as dot when changing the language

Hi Daniel,

This seems to be a bit of a shortcoming in the WPF TextBox control and I think this thread is related.  The DoubleEditBox uses a regular TextBox in its template and it seems to always insert a "." (dot) when the numpad decimal character is typed, at least on an English keyboard.

DoubleEditBox will use the number settings from CultureInfo.CurrentCulture.  Per that thread, I think the workaround is to find the nested TextBox in DoubleEditBox and attach to its PreviewKeyDown event.  Then manually insert a comma if appropriate for that key.

Would that sort of logic resolve the issue for you?

Hi,

How can I find that nested TextBox and connect to that event. I cannot connect to it because it is inside a style.

Kins regards,

Daniel

Hi Daniel,

Sorry the link in the previous post wasn't submitted properly.  It's fixed now.

This kind of code in a DoubleEditBox-inherited class would get the TextBox:

public override void OnApplyTemplate() {
	base.OnApplyTemplate();

	var textBox = this.GetTemplateChild("PART_TextBox") as System.Windows.Controls.TextBox;
	if (textBox != null) {
		// Add logic such as in previously-linked thread
	}
}

Hi,

I have a solution searching that nested control using the VisualTreeHelper as I do not make it work connecting directly to that event.

Kind regards,

Daniel