C# Datetime short year with national conventions

Question

How can I make DateTime.ToString() put out strings in such a way, that it looks like this in Germany: dd.MM.yy and like this in the USA MM/dd/yy and everywhere else for that matter, with year always having two characters, but the format of the date, being specific to culture.

Answer 1

You just have to use DateTime.ToString since it's using the current culture if you don't specify a different:

string result = dt.ToString("MM/dd/yy");

The / will be replaced with the correct date separators of the current culture.

See: The "/" Custom Format Specifier

Edit: "what about dd MM and MM dd part?"

Good question, this is my try:

string shortDate = CultureInfo.CurrentCulture.DateTimeFormat.ShortDatePattern;
string result = dt.ToString(shortDate.Replace("yyyy", "yy"));

Answer 2

Just use this:

textBox1.Text =  DateTime.Now.ToString("MM/dd/yy");

or:

 textBox1.Text = DateTime.Now.ToString(new CultureInfo("de-DE"))

For more formatting details please see Custom Date and Time Format Strings on MSDN